Monthly report: Surveillance Project SB4008 IFNg Tests for Bovine Tuberculosis - August 2022
Source: environment.data.gov.uk (2023-01-25)

Interferon-Gamma Testing for Bovine Tuberculosis - Monthly Reports from January 2022. These monthly reports summarise the gamma tests completed / reported during that calendar month. The report also summarises tests for the whole calendar year to the end of the current month. While all effort is made to ensure the accuracy of the test data, small errors can occur and later corrected in subsequent reports.

Cattle interferon-gamma (IFNg) tests (and test outcome) carried out between 1st Jan and 31st Dec 2009. Tests are listed by country (England, Wales, Scotland) and by Animal Health Office (AHDO) and the reason for the test. Reports contain test data for the month, the calendar year to date and total tests since rollout (23rd Oct 2006).

Please note: this dataset consists of 12 monthly reports. Data for this report was compiled from field staff inputs and laboratory test information. Subsequent minor data amendments may have been made after the report was originally compiled, and these corrections would appear in the following month’s report. Each report was checked and deemed correct at the time of release. Attribution statement:

Monthly Report:
Surveillance Project
SB4008 IFNg (TC0651 and
TC0751) & Antibody
(TC0077) tests for bovine
tuberculosis
Number 192
Report Period 1st - 31st August 2022
Issued 10 September 2022

Operational notes on terminology, definitions, re-test and re-samples test
outcomes:
• “Samples” refers to an individual tube of blood taken from an individual animal which is
subsequently submitted for testing. It is generally assumed that the number of samples and
the number of animals are analogous as any duplicate sample blood tube from the same
animal will not be tested. However, minor discrepancies may occur where the same animal is
tested more than once due to a request for a resample or the animal is tested twice under
different categories (for example, as a PAR-RAPID and then as part of a PAR-HERD-S).
• “Submissions” refers to an individual batch or set of samples received for testing.
Submissions may comprise 1 or more samples (for example, if an entire herd is being tested it
is usually sent as 1 submission). It is generally assumed that the number of submissions and
the number of herds are analogous.
• Retests are samples where the first ELISA assay fails and the same sample is retested on a
new ELISA plate. Each sample can be retested only once. A retest is not a reportable test
outcome.
• Resamples are where a sample has been retested and failed a second time, so that the lab
requests a new sample. This is a reportable test outcome.
• Rejects are samples that are not tested by the lab for one of the following reasons: blood
collected into wrong type of vacutainer, samples that have not been maintained at the
appropriate temperature range (22±5C), unlabelled samples, broken or cracked tubes, blood
that is extensively clotted (small clots are OK), samples received after 4pm on the day after
sample collection. Such samples are reported separately in the tables and in figure 5.
• POS (pokeweed mitogen) is a sample positive control reagent which provides a measure of
the quality/viability of the blood sample. A POS fail (< 0.45 optical density reading) may
indicate compromised blood quality as a result of collection/transportation conditions or due
the animal having an unusually low/suppressed cellular immune response.
• NEG (no-antigen control) is a sample negative control which provides a measure of the
background antigen-independent IFN- responses. A NEG fail (> 0.3 optical density reading)
may indicate a laboratory procedures problem (normally resolved during re-test) or that an
animal has unusually high background levels of IFN-g.

1. Interferon-gamma test:
Submission Reason
Explanation
Mandatory?
Possible Herd Slaughter
(PAR-HERD-S)
Parallel interferon-gamma (IFNG) blood testing
of skin test negative cattle to inform whole or
partial herd slaughters decisions
YES, if APHA are
contemplating a herd
slaughter
Persistent TB breakdowns
(OTF status withdrawn)
(PAR-P-CONF) N.B.
PAR-PERSIS from 1st April
2017
Parallel blood IFNG testing of skin test-negative
cattle in persistently infected herds that have
failed to resolve by repeated short-interval skin
testing and fulfill a minimum of biosecurity
standards.
NO (APHA discretion)
Parallel - Low Incidence
(PAR-LOW-IN) N.B.
PAR-NEW-IN from 1st April
2017
Parallel blood IFNG testing to maximise the
probability of removing all infected cattle in a
new herd breakdown as soon as possible after
confirmation of TB.
YES in Area of Low
Incidence
PAR-RAPID
Parallel blood testing of two-times IRs identified
under the severe interpretation of the skin test
used in Wales.
YES (Wales only)
PAR-IR-SEV
Parallel blood testing of all severe IRs identified
in persistent breakdown herds only (coupled
with Idexx antibody testing)
YES (Wales only)
PAR-IR-EX
Parallel IFNG blood testing of all severe IRs in
the Exit Strategy for persistent herds (coupled
with Idexx antibody testing),
and also for new breakdown herds in ITBAN
(Intermediate TB Area North) (not coupled with
IDEXX testing).
YES (Wales only)
PAR-CUL-N
Parallel IFNG blood testing to maximise the
probability of removing all infected cattle in a
new breakdown as soon as possible after
confirmation of TB where herd is situated in
badger control areas of England that have
completed at least 2 effective culls.
YES (in eligible badger
control areas of England)
PAR-CUL-P
Parallel IFNG blood testing to maximise the
probability of removing all infected cattle in a
persistent confirmed breakdown where herd is
situated within badger control areas of England
that have completed at least 2 effective culls
NO (APHA discretion in
badger control areas
England)
PAR-RECUR
England - parallel IFNG blood testing of skin
test-negative cattle in breakdown herds (in HRA
& 6-monthly-testing parts of Edge Area)
occurring within 18 months of lifting restrictions
after a previous breakdown
Wales - parallel IFNG blood testing of skin
test-negative cattle in breakdown herds
occurring within 6 months of lifting restrictions
after a previous breakdown
England - YES
Wales - NO (APHA
discretion)
PAR-CHR
Parallel IFNG blood testing of Chronic
breakdown herds i.e. where VL reactors are
disclosed at a 3rd or subsequent Short Interval
test or a SLH case after a 2nd or subsequent
Short Interval test
England only - YES
PAR-POSTM
Post movement IFNG blood test of cattle
(coupled with Idexx antibody testing)
Yes (currently Wales
ITBAN only)
PAR-OTHER
Other parallel IFNG blood testing not covered in
any of the other scenarios
NO (APHA discretion)
Test Criteria

'NSR' Herds (SER-NSR)
Modified serial IFNG blood testing of individual
skin test reactors and/or IRs in unconfirmed TB
breakdown herds to clarify their infection status
where there is evidence of non-specific
sensitisation to bovine tuberculin (the
“non-specific reactor” procedure)
NO (APHA discretion)
Suspected Fraud
(SER-FRAUD)
Modified serial IFNG blood test of suspected
fraudulent reactors to the skin test (animals with
abnormal skin swellings), in confirmed or
unconfirmed TB incidents.
NO (APHA discretion to
firm up or rule out any
suspicion of fraud and
support any
investigations)
Anomalous reaction
(SER-ANOM)
Modified serial IFNG blood test of suspected
fraudulent reactors to the skin test (animals with
abnormal skin swellings), in confirmed or
unconfirmed TB incidents.
NO (APHA discretion to
firm up or rule out any
suspicion of fraud and
support any
investigations)
Serial Other
(SER-OTHER)
Serial test – other reasons
NO (APHA Discretion)
SER-FLEXI
Extended IFNG blood test to provide flexible
test readout in a confirmed M. bovis-infected
herd where Johne's (M. a. paratuberculosis)
infection or vaccination is suspected to be
interferring with M. bovis infection detection
NO (APHA discretion)
2. IDEXX antibody test:
Submission Reason
Explanation
Mandatory?
BOV-P
Supplementary antibody testing within
persistent infected herds
NO (APHA discretion -
Eng & Wales)
BOV-OTHER
Antibody testing for reasons not covered by the
above
NO (APHA discretion -
Eng & Wales)
BOV-IR-EX
Compulsory antibody testing of IRs as part of
Exit Strategy (coupled with IFNG testing)
YES (Wales only)
BOV-IR-C
Compulsory antibody testing of severe IRs
(coupled IFNG testing)
YES (Wales only)
BOV-POSTM
Compulsory post-movement antibody test of
cattle (coupled with IFNG testing)
YES (Wales only)

Num
samples
August 2022
%
Total 2022
%
Submissions
274
1983
Samples
Total (%)
19758
100.00 %
151738
100.00 %
England
13206
66.84 %
114256
75.30 %
Wales
6305
31.91 %
36210
23.86 %
Scotland
247
1.25 %
1272
0.84 %
Parallel Tests
PAR-CHR
344
1.74 %
2621
1.73 %
PAR-CUL-N
40
0.20 %
7885
5.20 %
PAR-CUL-P
211
1.07 %
5246
3.46 %
PAR-HERD-S
162
0.82 %
273
0.18 %
PAR-IR-EX
54
0.27 %
280
0.18 %
PAR-IR-SEV
345
1.75 %
1414
0.93 %
PAR-NEW-IN
3963
20.06 %
30942
20.39 %
PAR-OTHER
200
1.01 %
2866
1.89 %
PAR-PERSIS
2210
11.19 %
14468
9.53 %
PAR-POSTM
18
0.09 %
355
0.23 %
PAR-RAPID
55
0.28 %
628
0.41 %
PAR-RECUR
10480
53.04 %
72150
47.55 %
Total(% of all samples)
18082
91.52 %
139128
91.69 %
Serial/Extended Tests
SER-ANOM
0
0.00 %
SER-FLEXI
1676
8.48 %
12604
8.31 %
SER-FRAUD
0
0.00 %
SER-NSR
0
0.00 %
4
0.00 %
SER-OTHER
0
0.00 %
2
0.00 %
Total(% of all samples)
1676
8.48 %
12610
8.31 %
Total
19758
100.00 %
151738
100.00 %
Retests
Total (% of all samples)
1655
8.38 %
12497
8.24 %
England
1073
5.43 %
9347
6.16 %
Wales
558
2.82 %
3020
1.99 %
Scotland
24
0.12 %
130
0.09 %
Resamples
Total (% of all samples)
1270
6.43 %
10093
6.65 %
England
832
4.21 %
7595
5.01 %
Wales
415
2.10 %
2392
1.58 %
Scotland
23
0.12 %
106
0.07 %
Rejects
Total (% of all samples)
22
0.11 %
909
0.60 %
England
6
0.03 %
740
0.49 %
Wales
16
0.08 %
169
0.11 %
Scotland
0
0.00 %
Table 1. Monthly Totals for August 2022
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN
(PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new infection in cull area,
PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with
concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor, SER-FRAUD: serial potential fraud, SER-OTHER: serial
other

PAR-CHR
PAR-CUL-N
PAR-CUL-P
PAR-HERD-S
PAR-IR-EX
PAR-IR-SEV
PAR-NEW-IN
PAR-OTHER
PAR-PERSIS
PAR-POSTM
PAR-RAPID
PAR-RECUR
SER-FLEXI
Breakdown of
Reason for
submission
PAR-CHR
344
1.7 %
PAR-CUL-N
40
0.2 %
PAR-CUL-P
211
1.1 %
PAR-HERD-S
162
0.8 %
PAR-IR-EX
54
0.3 %
PAR-IR-SEV
345
1.7 %
PAR-NEW-IN
3963
20.1 %
PAR-OTHER
200
1.0 %
PAR-PERSIS
2210
11.2 %
PAR-POSTM
18
0.1 %
PAR-RAPID
55
0.3 %
PAR-RECUR
10480
53.0 %
SER-FLEXI
1676
8.5 %
Total
19758
100.00 %
Figure 1. Number of samples submitted in each category during August 2022
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN
(PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new infection in cull area,
PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with
concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor, SER-FRAUD: serial potential fraud, SER-OTHER: serial
other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or
subsequent SI test

0
500
1000
1500
2000
2500
3000
Wigtown
Inverness-shire
W Glamorgan
Shropshire
S Glamorgan
Powys
Pembs
NE Wales
Gwynedd
Gwent
Ceredigion
Carms
W Yorks
Worcs
Wiltshire
Warks
Staffs
Somerset excl N
Shropshire
Oxon
N Yorks
Northants
Lincs
Leics & Rut
Heref
Gloucs
Devon
Derbyshire
Cumbria
Corn & Scilly
Cheshire
Bucks
Avon
Scotland
Wales
England
SER-FLEXI
PAR-RECUR
PAR-RAPID
PAR-POSTM
PAR-PERSIS
PAR-OTHER
PAR-NEW-IN
PAR-IR-SEV
PAR-IR-EX
PAR-HERD-S
PAR-CUL-P
PAR-CUL-N
PAR-CHR
Breakdown of
Samples
submitted by
County
Figure 2. Number of samples submitted in each category by County during August 2022
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence,
PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in
confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor, SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown
herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test

0
2000
4000
6000
8000
10000
12000
14000
16000
18000
Wigtown
Kirkcudbright
Inverness-shire
Argyll & Bute
W Glamorgan
S Wales
Shropshire
S Glamorgan
Powys
Pembs
NE Wales
Mid Glamorgan
Gwynedd
Gwent
Ceredigion
Carms
W Yorks
W Sussex
Worcs
Wiltshire
Warks
Staffs
Somerset excl N
Shropshire
Oxon
N Yorks
Notts
Northumb
Northants
Lincs
Leics & Rut
Lancashire
Kent
I of Wight
Herts
Heref
Hampshire
Gr Manchester
Gloucs
E Sussex
Dorset
Devon
Derbyshire
Cumbria
Corn & Scilly
Cleveland
Cheshire
Cambs
Bucks
Berks
Beds
Avon
Scotland
Wales
England
SER-OTHER
SER-NSR
SER-FLEXI
PAR-RECUR
PAR-RAPID
PAR-POSTM
PAR-PERSIS
PAR-OTHER
PAR-NEW-IN
PAR-IR-SEV
PAR-IR-EX
PAR-HERD-S
PAR-CUL-P
PAR-CUL-N
PAR-CHR
Breakdown
of Samples
submitted
by County
Figure 3. Number of samples submitted in each category by County during 2022
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017):
parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER:
parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or
SLH case after a 2nd or subsequent SI test

Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
England - HRA
Avon
PAR-NEW-IN
1
77
0.39 %
2
2.60 %
64
83.12 %
16
20.78 %
11
14.29 %
0
0.00 %
PAR-OTHER
2
54
0.27 %
11
20.37 %
35
64.81 %
9
16.67 %
8
14.81 %
0
0.00 %
PAR-RECUR
5
685
3.47 %
36
5.26 %
624
91.09 %
37
5.40 %
25
3.65 %
0
0.00 %
Corn & Scilly
PAR-RECUR
16
2,723
13.78 %
85
3.12 %
2477
90.97 %
199
7.31 %
161
5.91 %
0
0.00 %
Devon
PAR-CHR
2
344
1.74 %
5
1.45 %
305
88.66 %
38
11.05 %
34
9.88 %
0
0.00 %
PAR-CUL-N
2
40
0.20 %
0
0.00 %
38
95.00 %
2
5.00 %
2
5.00 %
0
0.00 %
PAR-HERD-S
1
161
0.81 %
30
18.63 %
122
75.78 %
20
12.42 %
9
5.59 %
0
0.00 %
PAR-OTHER
1
9
0.05 %
1
11.11 %
7
77.78 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-PERSIS
1
268
1.36 %
7
2.61 %
244
91.04 %
18
6.72 %
14
5.22 %
3
1.12 %
PAR-RECUR
4
1,241
6.28 %
30
2.42 %
1145
92.26 %
86
6.93 %
66
5.32 %
0
0.00 %
Gloucs
PAR-RECUR
1
25
0.13 %
0
0.00 %
17
68.00 %
9
36.00 %
8
32.00 %
0
0.00 %
Heref
PAR-RECUR
8
702
3.55 %
20
2.85 %
627
89.32 %
86
12.25 %
55
7.83 %
0
0.00 %
Shropshire
PAR-RECUR
8
564
2.85 %
5
0.89 %
506
89.72 %
58
10.28 %
53
9.40 %
0
0.00 %
Somerset excl N
PAR-RECUR
9
1,452
7.35 %
66
4.55 %
1329
91.53 %
72
4.96 %
57
3.93 %
0
0.00 %
SER-FLEXI
1
36
0.18 %
4
11.11 %
30
83.33 %
2
5.56 %
2
5.56 %
0
0.00 %
Staffs
PAR-CUL-P
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
5
1,773
8.97 %
43
2.43 %
xx-xxxx-xxxx
93.01 %
105
5.92 %
81
4.57 %
0
0.00 %
Wiltshire
PAR-RECUR
5
445
2.25 %
12
2.70 %
388
87.19 %
58
13.03 %
45
10.11 %
0
0.00 %
Worcs
PAR-RECUR
1
22
0.11 %
2
9.09 %
11
50.00 %
9
40.91 %
9
40.91 %
0
0.00 %
England - Edge
Bucks
PAR-NEW-IN
4
161
0.81 %
3
1.86 %
139
86.34 %
22
13.66 %
19
11.80 %
0
0.00 %
Cheshire
PAR-CUL-P
1
210
1.06 %
1
0.48 %
203
96.67 %
9
4.29 %
6
2.86 %
0
0.00 %
PAR-RECUR
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Derbyshire
PAR-RECUR
1
320
1.62 %
3
0.94 %
305
95.31 %
23
7.19 %
12
3.75 %
0
0.00 %
Leics & Rut
PAR-NEW-IN
3
396
2.00 %
44
11.11 %
333
84.09 %
23
5.81 %
18
4.55 %
1
0.25 %
Northants
PAR-NEW-IN
1
76
0.38 %
1
1.32 %
61
80.26 %
15
19.74 %
14
18.42 %
0
0.00 %
Oxon
PAR-RECUR
2
47
0.24 %
0
0.00 %
35
74.47 %
13
27.66 %
12
25.53 %
0
0.00 %
Table 2a. Summary by County for August 2022
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N:
new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2a. Summary by County for August 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Warks
PAR-NEW-IN
2
165
0.84 %
13
7.88 %
136
82.42 %
20
12.12 %
16
9.70 %
0
0.00 %
PAR-RECUR
1
152
0.77 %
5
3.29 %
138
90.79 %
12
7.89 %
9
5.92 %
0
0.00 %
England - LRA
Cumbria
PAR-NEW-IN
3
415
2.10 %
4
0.96 %
385
92.77 %
38
9.16 %
25
6.02 %
1
0.24 %
Lincs
PAR-NEW-IN
3
374
1.89 %
5
1.34 %
338
90.37 %
37
9.89 %
31
8.29 %
0
0.00 %
N Yorks
PAR-NEW-IN
2
252
1.28 %
3
1.19 %
221
87.70 %
35
13.89 %
28
11.11 %
0
0.00 %
W Yorks
PAR-NEW-IN
1
15
0.08 %
1
6.67 %
12
80.00 %
1
6.67 %
1
6.67 %
1
6.67 %
England
99
13206
66.84 %
442
3.35 %
11926
90.31 %
1073
8.13 %
832
6.30 %
6
0.05 %
Wales - High TB
Carms
PAR-IR-SEV
5
35
0.18 %
8
22.86 %
24
68.57 %
4
11.43 %
3
8.57 %
0
0.00 %
PAR-PERSIS
5
840
4.25 %
35
4.17 %
773
92.02 %
44
5.24 %
29
3.45 %
3
0.36 %
PAR-RAPID
3
3
0.02 %
1
33.33 %
1
33.33 %
1
33.33 %
1
33.33 %
0
0.00 %
PAR-RECUR
1
173
0.88 %
13
7.51 %
156
90.17 %
4
2.31 %
4
2.31 %
0
0.00 %
SER-FLEXI
4
97
0.49 %
7
7.22 %
85
87.63 %
8
8.25 %
5
5.15 %
0
0.00 %
Ceredigion
PAR-RAPID
2
2
0.01 %
0
0.00 %
0
0.00 %
2
100.00 %
2
100.00 %
0
0.00 %
SER-FLEXI
1
176
0.89 %
6
3.41 %
165
93.75 %
6
3.41 %
5
2.84 %
0
0.00 %
Gwent
PAR-IR-SEV
4
42
0.21 %
12
28.57 %
30
71.43 %
1
2.38 %
0
0.00 %
0
0.00 %
PAR-OTHER
2
3
0.02 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
3
5
0.03 %
1
20.00 %
4
80.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
4
150
0.76 %
3
2.00 %
132
88.00 %
16
10.67 %
14
9.33 %
1
0.67 %
Pembs
PAR-IR-EX
6
38
0.19 %
16
42.11 %
21
55.26 %
2
5.26 %
1
2.63 %
0
0.00 %
PAR-IR-SEV
15
143
0.72 %
24
16.78 %
114
79.72 %
5
3.50 %
4
2.80 %
1
0.70 %
PAR-NEW-IN
1
13
0.07 %
0
0.00 %
8
61.54 %
7
53.85 %
5
38.46 %
0
0.00 %
PAR-OTHER
1
9
0.05 %
0
0.00 %
9
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
5
411
2.08 %
6
1.46 %
382
92.94 %
29
7.06 %
23
5.60 %
0
0.00 %
PAR-RAPID
11
24
0.12 %
4
16.67 %
18
75.00 %
2
8.33 %
2
8.33 %
0
0.00 %
PAR-RECUR
1
3
0.02 %
0
0.00 %
2
66.67 %
1
33.33 %
1
33.33 %
0
0.00 %
SER-FLEXI
10
1,171
5.93 %
43
3.67 %
1061
90.61 %
77
6.58 %
67
5.72 %
0
0.00 %
Powys
PAR-IR-EX
4
12
0.06 %
0
0.00 %
11
91.67 %
2
16.67 %
1
8.33 %
0
0.00 %
PAR-IR-SEV
4
8
0.04 %
0
0.00 %
6
75.00 %
4
50.00 %
2
25.00 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N:
new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2a. Summary by County for August 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-OTHER
2
23
0.12 %
9
39.13 %
14
60.87 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
4
6
0.03 %
1
16.67 %
5
83.33 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
2
0.01 %
0
0.00 %
1
50.00 %
1
50.00 %
1
50.00 %
0
0.00 %
SER-FLEXI
1
45
0.23 %
2
4.44 %
42
93.33 %
3
6.67 %
0
0.00 %
1
2.22 %
W Glamorgan
PAR-RAPID
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Intermediate TB
Carms
PAR-IR-SEV
1
6
0.03 %
1
16.67 %
5
83.33 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
1
6
0.03 %
0
0.00 %
6
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-IR-EX
1
2
0.01 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
6
109
0.55 %
11
10.09 %
96
88.07 %
2
1.83 %
2
1.83 %
0
0.00 %
PAR-NEW-IN
13
789
3.99 %
15
1.90 %
671
85.04 %
131
16.60 %
98
12.42 %
5
0.63 %
PAR-OTHER
1
4
0.02 %
0
0.00 %
3
75.00 %
2
50.00 %
1
25.00 %
0
0.00 %
PAR-PERSIS
3
677
3.43 %
28
4.14 %
631
93.21 %
20
2.95 %
17
2.51 %
1
0.15 %
PAR-POSTM
2
5
0.03 %
1
20.00 %
3
60.00 %
1
20.00 %
1
20.00 %
0
0.00 %
PAR-RAPID
5
9
0.05 %
0
0.00 %
9
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
2
151
0.76 %
12
7.95 %
133
88.08 %
7
4.64 %
6
3.97 %
0
0.00 %
Powys
PAR-NEW-IN
4
353
1.79 %
10
2.83 %
264
74.79 %
107
30.31 %
79
22.38 %
0
0.00 %
PAR-OTHER
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
1
8
0.04 %
0
0.00 %
8
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-POSTM
1
1
0.01 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
PAR-RAPID
1
2
0.01 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
S Glamorgan
PAR-RAPID
1
1
0.01 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Shropshire
PAR-IR-SEV
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-HERD-S
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-EX
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
8
151
0.76 %
12
7.95 %
122
80.79 %
21
13.91 %
16
10.60 %
1
0.66 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N:
new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2a. Summary by County for August 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
NE Wales
PAR-NEW-IN
5
479
2.42 %
16
3.34 %
440
91.86 %
38
7.93 %
20
4.18 %
3
0.63 %
PAR-OTHER
1
91
0.46 %
9
9.89 %
78
85.71 %
9
9.89 %
4
4.40 %
0
0.00 %
PAR-PERSIS
1
5
0.03 %
2
40.00 %
3
60.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-POSTM
5
12
0.06 %
1
8.33 %
11
91.67 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales
171
6305
31.91 %
313
4.96 %
5561
88.20 %
558
8.85 %
415
6.58 %
16
0.25 %
Scotland - Scotland
Inverness-shire
PAR-NEW-IN
1
120
0.61 %
2
1.67 %
110
91.67 %
8
6.67 %
8
6.67 %
0
0.00 %
Wigtown
PAR-NEW-IN
3
127
0.64 %
1
0.79 %
111
87.40 %
16
12.60 %
15
11.81 %
0
0.00 %
Scotland
4
247
1.25 %
3
1.21 %
221
89.47 %
24
9.72 %
23
9.31 %
0
0.00 %
Grand Total
Sum:
274
19758
758
17708
1655
1270
22
*For test criteria please refer to Operational notes.
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N:
new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
England - HRA
Avon
PAR-CHR
4
257
0.17 %
22
8.56 %
212
82.49 %
27
10.51 %
23
8.95 %
0
0.00 %
PAR-CUL-N
3
527
0.35 %
26
4.93 %
485
92.03 %
16
3.04 %
15
2.85 %
1
0.19 %
PAR-CUL-P
2
222
0.15 %
20
9.01 %
173
77.93 %
37
16.67 %
29
13.06 %
0
0.00 %
PAR-NEW-IN
1
77
0.05 %
2
2.60 %
64
83.12 %
16
20.78 %
11
14.29 %
0
0.00 %
PAR-OTHER
2
54
0.04 %
11
20.37 %
35
64.81 %
9
16.67 %
8
14.81 %
0
0.00 %
PAR-PERSIS
2
343
0.23 %
20
5.83 %
301
87.76 %
26
7.58 %
22
6.41 %
0
0.00 %
PAR-RECUR
19
2,104
1.39 %
99
4.71 %
1881
89.40 %
148
7.03 %
117
5.56 %
7
0.33 %
Corn & Scilly
PAR-CHR
2
197
0.13 %
9
4.57 %
166
84.26 %
22
11.17 %
22
11.17 %
0
0.00 %
PAR-CUL-N
7
595
0.39 %
54
9.08 %
520
87.39 %
32
5.38 %
21
3.53 %
0
0.00 %
PAR-CUL-P
5
684
0.45 %
27
3.95 %
609
89.04 %
54
7.89 %
48
7.02 %
0
0.00 %
PAR-OTHER
1
102
0.07 %
1
0.98 %
98
96.08 %
4
3.92 %
3
2.94 %
0
0.00 %
PAR-PERSIS
10
1,862
1.23 %
73
3.92 %
1656
88.94 %
160
8.59 %
133
7.14 %
0
0.00 %
PAR-RECUR
68
10,661
7.03 %
445
4.17 %
9363
87.82 %
1038
9.74 %
847
7.94 %
6
0.06 %
Devon
PAR-CHR
6
496
0.33 %
6
1.21 %
446
89.92 %
51
10.28 %
44
8.87 %
0
0.00 %
PAR-CUL-N
17
1,678
1.11 %
107
6.38 %
1418
84.51 %
173
10.31 %
152
9.06 %
1
0.06 %
PAR-CUL-P
6
1,195
0.79 %
47
3.93 %
1049
87.78 %
114
9.54 %
94
7.87 %
5
0.42 %
PAR-HERD-S
1
161
0.11 %
30
18.63 %
122
75.78 %
20
12.42 %
9
5.59 %
0
0.00 %
PAR-OTHER
1
9
0.01 %
1
11.11 %
7
77.78 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-PERSIS
12
1,874
1.24 %
83
4.43 %
1653
88.21 %
168
8.96 %
135
7.20 %
3
0.16 %
PAR-RECUR
81
11,156
7.35 %
519
4.65 %
9774
87.61 %
1028
9.21 %
847
7.59 %
16
0.14 %
SER-FLEXI
2
145
0.10 %
4
2.76 %
128
88.28 %
11
7.59 %
9
6.21 %
4
2.76 %
Dorset
PAR-CUL-N
5
1,423
0.94 %
58
4.08 %
1279
89.88 %
100
7.03 %
83
5.83 %
3
0.21 %
PAR-OTHER
4
71
0.05 %
1
1.41 %
68
95.77 %
2
2.82 %
2
2.82 %
0
0.00 %
PAR-RECUR
11
1,439
0.95 %
65
4.52 %
1272
88.39 %
123
8.55 %
102
7.09 %
0
0.00 %
SER-FLEXI
2
43
0.03 %
7
16.28 %
34
79.07 %
2
4.65 %
2
4.65 %
0
0.00 %
Gloucs
PAR-CUL-N
7
320
0.21 %
23
7.19 %
247
77.19 %
51
15.94 %
47
14.69 %
3
0.94 %
Table 2b. Summary by County for 2022
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-CUL-P
1
195
0.13 %
7
3.59 %
170
87.18 %
17
8.72 %
17
8.72 %
1
0.51 %
PAR-OTHER
2
64
0.04 %
2
3.13 %
56
87.50 %
7
10.94 %
6
9.38 %
0
0.00 %
PAR-RECUR
29
3,548
2.34 %
147
4.14 %
3166
89.23 %
276
7.78 %
231
6.51 %
4
0.11 %
Heref
PAR-CUL-P
2
625
0.41 %
32
5.12 %
570
91.20 %
35
5.60 %
23
3.68 %
0
0.00 %
PAR-HERD-S
2
69
0.05 %
13
18.84 %
48
69.57 %
13
18.84 %
8
11.59 %
0
0.00 %
PAR-OTHER
6
545
0.36 %
32
5.87 %
488
89.54 %
42
7.71 %
25
4.59 %
0
0.00 %
PAR-PERSIS
9
1,132
0.75 %
61
5.39 %
975
86.13 %
104
9.19 %
93
8.22 %
3
0.27 %
PAR-RECUR
49
6,469
4.26 %
227
3.51 %
5753
88.93 %
474
7.33 %
360
5.57 %
129
1.99 %
Shropshire
PAR-CHR
6
1,235
0.81 %
45
3.64 %
1125
91.09 %
81
6.56 %
65
5.26 %
0
0.00 %
PAR-NEW-IN
2
293
0.19 %
22
7.51 %
252
86.01 %
27
9.22 %
19
6.48 %
0
0.00 %
PAR-OTHER
3
246
0.16 %
4
1.63 %
221
89.84 %
22
8.94 %
21
8.54 %
0
0.00 %
PAR-PERSIS
10
2,064
1.36 %
77
3.73 %
1840
89.15 %
185
8.96 %
147
7.12 %
0
0.00 %
PAR-RECUR
64
10,069
6.64 %
219
2.17 %
9269
92.05 %
700
6.95 %
575
5.71 %
6
0.06 %
Somerset excl N
PAR-CUL-N
2
529
0.35 %
12
2.27 %
492
93.01 %
29
5.48 %
25
4.73 %
0
0.00 %
PAR-OTHER
3
87
0.06 %
15
17.24 %
65
74.71 %
8
9.20 %
7
8.05 %
0
0.00 %
PAR-PERSIS
3
239
0.16 %
4
1.67 %
215
89.96 %
24
10.04 %
20
8.37 %
0
0.00 %
PAR-RECUR
41
5,479
3.61 %
268
4.89 %
4931
90.00 %
360
6.57 %
273
4.98 %
7
0.13 %
SER-FLEXI
3
63
0.04 %
9
14.29 %
49
77.78 %
6
9.52 %
5
7.94 %
0
0.00 %
Staffs
PAR-CHR
2
436
0.29 %
4
0.92 %
419
96.10 %
19
4.36 %
13
2.98 %
0
0.00 %
PAR-CUL-N
2
263
0.17 %
6
2.28 %
214
81.37 %
43
16.35 %
43
16.35 %
0
0.00 %
PAR-CUL-P
2
426
0.28 %
11
2.58 %
402
94.37 %
17
3.99 %
13
3.05 %
0
0.00 %
PAR-OTHER
5
426
0.28 %
13
3.05 %
396
92.96 %
17
3.99 %
16
3.76 %
1
0.23 %
PAR-PERSIS
4
739
0.49 %
13
1.76 %
442
59.81 %
63
8.53 %
63
8.53 %
221
29.91 %
PAR-RECUR
30
6,571
4.33 %
171
2.60 %
5967
90.81 %
458
6.97 %
358
5.45 %
75
1.14 %
Wiltshire
PAR-CUL-N
4
312
0.21 %
20
6.41 %
267
85.58 %
27
8.65 %
25
8.01 %
0
0.00 %
PAR-CUL-P
4
727
0.48 %
53
7.29 %
609
83.77 %
54
7.43 %
50
6.88 %
15
2.06 %
PAR-NEW-IN
1
19
0.01 %
1
5.26 %
13
68.42 %
5
26.32 %
5
26.32 %
0
0.00 %
PAR-OTHER
2
94
0.06 %
10
10.64 %
80
85.11 %
8
8.51 %
4
4.26 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-PERSIS
2
70
0.05 %
7
10.00 %
46
65.71 %
20
28.57 %
17
24.29 %
0
0.00 %
PAR-RECUR
20
3,075
2.03 %
111
3.61 %
2709
88.10 %
349
11.35 %
253
8.23 %
2
0.07 %
Worcs
PAR-RECUR
8
392
0.26 %
28
7.14 %
324
82.65 %
49
12.50 %
40
10.20 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
2
148
0.10 %
0
0.00 %
95
64.19 %
14
9.46 %
9
6.08 %
44
29.73 %
PAR-RECUR
1
125
0.08 %
2
1.60 %
118
94.40 %
5
4.00 %
5
4.00 %
0
0.00 %
Bucks
PAR-CUL-N
1
224
0.15 %
10
4.46 %
204
91.07 %
11
4.91 %
10
4.46 %
0
0.00 %
PAR-NEW-IN
12
1,604
1.06 %
30
1.87 %
1486
92.64 %
116
7.23 %
88
5.49 %
0
0.00 %
Cheshire
PAR-CUL-N
4
1,319
0.87 %
34
2.58 %
1223
92.72 %
76
5.76 %
62
4.70 %
0
0.00 %
PAR-CUL-P
6
1,100
0.72 %
3
0.27 %
1030
93.64 %
92
8.36 %
67
6.09 %
0
0.00 %
PAR-NEW-IN
4
555
0.37 %
18
3.24 %
499
89.91 %
42
7.57 %
38
6.85 %
0
0.00 %
PAR-OTHER
2
86
0.06 %
3
3.49 %
75
87.21 %
9
10.47 %
8
9.30 %
0
0.00 %
PAR-PERSIS
8
2,341
1.54 %
57
2.43 %
2166
92.52 %
168
7.18 %
115
4.91 %
3
0.13 %
PAR-RECUR
13
4,552
3.00 %
88
1.93 %
4251
93.39 %
257
5.65 %
212
4.66 %
1
0.02 %
Derbyshire
PAR-NEW-IN
5
550
0.36 %
14
2.55 %
483
87.82 %
57
10.36 %
51
9.27 %
2
0.36 %
PAR-RECUR
10
1,832
1.21 %
31
1.69 %
1716
93.67 %
105
5.73 %
79
4.31 %
6
0.33 %
E Sussex
PAR-NEW-IN
7
459
0.30 %
10
2.18 %
394
85.84 %
61
13.29 %
45
9.80 %
10
2.18 %
Hampshire
PAR-CUL-N
2
60
0.04 %
2
3.33 %
46
76.67 %
12
20.00 %
12
20.00 %
0
0.00 %
PAR-NEW-IN
7
670
0.44 %
21
3.13 %
601
89.70 %
52
7.76 %
45
6.72 %
3
0.45 %
Leics & Rut
PAR-CUL-N
2
31
0.02 %
3
9.68 %
27
87.10 %
2
6.45 %
1
3.23 %
0
0.00 %
PAR-CUL-P
1
72
0.05 %
1
1.39 %
59
81.94 %
15
20.83 %
11
15.28 %
1
1.39 %
PAR-NEW-IN
21
2,518
1.66 %
115
4.57 %
2215
87.97 %
210
8.34 %
183
7.27 %
5
0.20 %
Northants
PAR-NEW-IN
14
1,265
0.83 %
26
2.06 %
1087
85.93 %
161
12.73 %
150
11.86 %
2
0.16 %
PAR-RECUR
1
114
0.08 %
1
0.88 %
93
81.58 %
11
9.65 %
20
17.54 %
0
0.00 %
Notts
PAR-CUL-N
2
451
0.30 %
9
2.00 %
422
93.57 %
31
6.87 %
19
4.21 %
1
0.22 %
PAR-NEW-IN
8
780
0.51 %
24
3.08 %
706
90.51 %
63
8.08 %
50
6.41 %
0
0.00 %
Oxon
PAR-NEW-IN
19
2,439
1.61 %
127
5.21 %
2151
88.19 %
191
7.83 %
161
6.60 %
0
0.00 %
PAR-PERSIS
2
160
0.11 %
15
9.38 %
136
85.00 %
9
5.63 %
9
5.63 %
0
0.00 %
PAR-RECUR
5
318
0.21 %
7
2.20 %
276
86.79 %
39
12.26 %
35
11.01 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Warks
PAR-NEW-IN
4
176
0.12 %
13
7.39 %
145
82.39 %
22
12.50 %
18
10.23 %
0
0.00 %
PAR-RECUR
5
512
0.34 %
15
2.93 %
455
88.87 %
49
9.57 %
42
8.20 %
0
0.00 %
England - LRA
Beds
PAR-CUL-N
1
153
0.10 %
1
0.65 %
126
82.35 %
32
20.92 %
24
15.69 %
2
1.31 %
PAR-NEW-IN
2
94
0.06 %
1
1.06 %
89
94.68 %
3
3.19 %
3
3.19 %
1
1.06 %
Cambs
PAR-NEW-IN
2
73
0.05 %
1
1.37 %
67
91.78 %
4
5.48 %
4
5.48 %
1
1.37 %
Cleveland
PAR-NEW-IN
2
45
0.03 %
0
0.00 %
43
95.56 %
3
6.67 %
1
2.22 %
1
2.22 %
Cumbria
PAR-NEW-IN
8
809
0.53 %
9
1.11 %
725
89.62 %
73
9.02 %
56
6.92 %
19
2.35 %
Gr Manchester
PAR-NEW-IN
7
303
0.20 %
2
0.66 %
278
91.75 %
27
8.91 %
23
7.59 %
0
0.00 %
Herts
PAR-NEW-IN
5
253
0.17 %
14
5.53 %
197
77.87 %
41
16.21 %
39
15.42 %
3
1.19 %
I of Wight
PAR-NEW-IN
1
86
0.06 %
1
1.16 %
80
93.02 %
7
8.14 %
5
5.81 %
0
0.00 %
Kent
PAR-NEW-IN
1
63
0.04 %
2
3.17 %
56
88.89 %
5
7.94 %
5
7.94 %
0
0.00 %
Lancashire
PAR-NEW-IN
9
1,783
1.18 %
27
1.51 %
1660
93.10 %
114
6.39 %
92
5.16 %
4
0.22 %
SER-NSR
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Lincs
PAR-NEW-IN
9
642
0.42 %
10
1.56 %
587
91.43 %
56
8.72 %
45
7.01 %
0
0.00 %
Northumb
PAR-NEW-IN
1
248
0.16 %
10
4.03 %
208
83.87 %
19
7.66 %
17
6.85 %
13
5.24 %
N Yorks
PAR-NEW-IN
6
668
0.44 %
12
1.80 %
496
74.25 %
68
10.18 %
56
8.38 %
104
15.57 %
W Sussex
PAR-NEW-IN
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
W Yorks
PAR-NEW-IN
5
377
0.25 %
11
2.92 %
331
87.80 %
43
11.41 %
34
9.02 %
1
0.27 %
England
833
114256
75.30 %
4184
3.66 %
101737
89.04 %
9347
8.18 %
7595
6.65 %
740
0.65 %
Wales - High TB
Carms
PAR-IR-EX
7
25
0.02 %
10
40.00 %
15
60.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
30
192
0.13 %
64
33.33 %
100
52.08 %
21
10.94 %
15
7.81 %
13
6.77 %
PAR-OTHER
5
11
0.01 %
0
0.00 %
9
81.82 %
2
18.18 %
2
18.18 %
0
0.00 %
PAR-PERSIS
5
840
0.55 %
35
4.17 %
773
92.02 %
44
5.24 %
29
3.45 %
3
0.36 %
PAR-RAPID
38
137
0.09 %
40
29.20 %
80
58.39 %
13
9.49 %
11
8.03 %
6
4.38 %
PAR-RECUR
8
790
0.52 %
47
5.95 %
716
90.63 %
34
4.30 %
27
3.42 %
0
0.00 %
SER-FLEXI
21
2,787
1.84 %
160
5.74 %
2471
88.66 %
211
7.57 %
153
5.49 %
3
0.11 %
Ceredigion
PAR-IR-EX
8
24
0.02 %
6
25.00 %
17
70.83 %
0
0.00 %
0
0.00 %
1
4.17 %
PAR-IR-SEV
20
97
0.06 %
21
21.65 %
69
71.13 %
6
6.19 %
5
5.15 %
2
2.06 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-PERSIS
1
8
0.01 %
1
12.50 %
7
87.50 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
15
28
0.02 %
8
28.57 %
13
46.43 %
4
14.29 %
4
14.29 %
3
10.71 %
PAR-RECUR
2
32
0.02 %
10
31.25 %
21
65.63 %
1
3.13 %
1
3.13 %
0
0.00 %
SER-FLEXI
3
227
0.15 %
8
3.52 %
212
93.39 %
9
3.96 %
7
3.08 %
0
0.00 %
Gwent
PAR-IR-SEV
12
73
0.05 %
18
24.66 %
52
71.23 %
4
5.48 %
3
4.11 %
0
0.00 %
PAR-OTHER
9
168
0.11 %
7
4.17 %
147
87.50 %
19
11.31 %
14
8.33 %
0
0.00 %
PAR-RAPID
15
36
0.02 %
7
19.44 %
26
72.22 %
3
8.33 %
3
8.33 %
0
0.00 %
PAR-RECUR
11
370
0.24 %
9
2.43 %
336
90.81 %
34
9.19 %
22
5.95 %
3
0.81 %
SER-FLEXI
11
1,211
0.80 %
62
5.12 %
1079
89.10 %
73
6.03 %
66
5.45 %
4
0.33 %
Pembs
PAR-IR-EX
30
144
0.09 %
54
37.50 %
86
59.72 %
6
4.17 %
4
2.78 %
0
0.00 %
PAR-IR-SEV
109
741
0.49 %
167
22.54 %
543
73.28 %
30
4.05 %
24
3.24 %
7
0.94 %
PAR-NEW-IN
1
13
0.01 %
0
0.00 %
8
61.54 %
7
53.85 %
5
38.46 %
0
0.00 %
PAR-OTHER
9
179
0.12 %
20
11.17 %
147
82.12 %
12
6.70 %
12
6.70 %
0
0.00 %
PAR-PERSIS
25
1,607
1.06 %
80
4.98 %
1381
85.94 %
181
11.26 %
136
8.46 %
10
0.62 %
PAR-RAPID
101
246
0.16 %
62
25.20 %
170
69.11 %
15
6.10 %
13
5.28 %
1
0.41 %
PAR-RECUR
21
1,748
1.15 %
69
3.95 %
1574
90.05 %
118
6.75 %
96
5.49 %
9
0.51 %
SER-FLEXI
66
6,496
4.28 %
489
7.53 %
5556
85.53 %
514
7.91 %
411
6.33 %
41
0.63 %
Powys
PAR-HERD-S
1
2
0.00 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-EX
11
27
0.02 %
2
7.41 %
24
88.89 %
3
11.11 %
1
3.70 %
0
0.00 %
PAR-IR-SEV
21
76
0.05 %
11
14.47 %
52
68.42 %
16
21.05 %
13
17.11 %
0
0.00 %
PAR-OTHER
9
276
0.18 %
18
6.52 %
239
86.59 %
23
8.33 %
19
6.88 %
0
0.00 %
PAR-PERSIS
4
274
0.18 %
2
0.73 %
252
91.97 %
22
8.03 %
20
7.30 %
0
0.00 %
PAR-POSTM
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
33
77
0.05 %
16
20.78 %
54
70.13 %
8
10.39 %
7
9.09 %
0
0.00 %
PAR-RECUR
16
517
0.34 %
16
3.09 %
470
90.91 %
38
7.35 %
30
5.80 %
1
0.19 %
SER-FLEXI
6
220
0.14 %
7
3.18 %
196
89.09 %
20
9.09 %
15
6.82 %
2
0.91 %
S Wales
PAR-IR-SEV
1
4
0.00 %
4
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
2
18
0.01 %
7
38.89 %
10
55.56 %
1
5.56 %
1
5.56 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
W Glamorgan
PAR-IR-SEV
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
2
35
0.02 %
8
22.86 %
25
71.43 %
2
5.71 %
2
5.71 %
0
0.00 %
PAR-RAPID
2
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
2
45
0.03 %
4
8.89 %
37
82.22 %
4
8.89 %
4
8.89 %
0
0.00 %
Wales - Intermediate TB
Carms
PAR-IR-SEV
4
17
0.01 %
4
23.53 %
7
41.18 %
2
11.76 %
2
11.76 %
4
23.53 %
PAR-OTHER
3
23
0.02 %
0
0.00 %
15
65.22 %
6
26.09 %
6
26.09 %
2
8.70 %
PAR-PERSIS
3
16
0.01 %
0
0.00 %
14
87.50 %
2
12.50 %
2
12.50 %
0
0.00 %
PAR-RAPID
4
9
0.01 %
2
22.22 %
7
77.78 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
2
145
0.10 %
10
6.90 %
127
87.59 %
9
6.21 %
8
5.52 %
0
0.00 %
Ceredigion
PAR-IR-SEV
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-POSTM
1
13
0.01 %
1
7.69 %
11
84.62 %
0
0.00 %
0
0.00 %
1
7.69 %
PAR-RAPID
1
5
0.00 %
3
60.00 %
2
40.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
3
0.00 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
3
152
0.10 %
2
1.32 %
136
89.47 %
26
17.11 %
14
9.21 %
0
0.00 %
Mid Glamorgan
PAR-RAPID
2
5
0.00 %
0
0.00 %
3
60.00 %
2
40.00 %
2
40.00 %
0
0.00 %
NE Wales
PAR-IR-EX
11
41
0.03 %
6
14.63 %
32
78.05 %
3
7.32 %
3
7.32 %
0
0.00 %
PAR-IR-SEV
25
196
0.13 %
25
12.76 %
165
84.18 %
5
2.55 %
4
2.04 %
2
1.02 %
PAR-NEW-IN
62
5,696
3.75 %
103
1.81 %
5154
90.48 %
534
9.38 %
418
7.34 %
21
0.37 %
PAR-OTHER
3
43
0.03 %
4
9.30 %
35
81.40 %
6
13.95 %
4
9.30 %
0
0.00 %
PAR-PERSIS
6
868
0.57 %
31
3.57 %
800
92.17 %
38
4.38 %
35
4.03 %
2
0.23 %
PAR-POSTM
40
143
0.09 %
12
8.39 %
125
87.41 %
7
4.90 %
6
4.20 %
0
0.00 %
PAR-RAPID
24
47
0.03 %
11
23.40 %
36
76.60 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
12
719
0.47 %
46
6.40 %
634
88.18 %
33
4.59 %
29
4.03 %
10
1.39 %
Powys
PAR-IR-EX
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
3
12
0.01 %
2
16.67 %
10
83.33 %
1
8.33 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
18
1,850
1.22 %
80
4.32 %
1622
87.68 %
193
10.43 %
146
7.89 %
2
0.11 %
PAR-OTHER
3
215
0.14 %
8
3.72 %
183
85.12 %
28
13.02 %
24
11.16 %
0
0.00 %
PAR-PERSIS
1
8
0.01 %
0
0.00 %
8
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-POSTM
4
6
0.00 %
0
0.00 %
5
83.33 %
2
33.33 %
1
16.67 %
0
0.00 %
PAR-RAPID
6
11
0.01 %
3
27.27 %
8
72.73 %
0
0.00 %
0
0.00 %
0
0.00 %
S Glamorgan
PAR-OTHER
3
9
0.01 %
3
33.33 %
5
55.56 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-RAPID
6
13
0.01 %
8
61.54 %
5
38.46 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
3
115
0.08 %
26
22.61 %
72
62.61 %
21
18.26 %
17
14.78 %
0
0.00 %
Shropshire
PAR-IR-EX
2
5
0.00 %
0
0.00 %
3
60.00 %
2
40.00 %
2
40.00 %
0
0.00 %
PAR-IR-SEV
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
W Glamorgan
PAR-RECUR
2
113
0.07 %
3
2.65 %
101
89.38 %
9
7.96 %
9
7.96 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-HERD-S
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-EX
3
11
0.01 %
1
9.09 %
10
90.91 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
50
2,293
1.51 %
90
3.92 %
1913
83.43 %
327
14.26 %
286
12.47 %
4
0.17 %
PAR-OTHER
3
8
0.01 %
0
0.00 %
6
75.00 %
1
12.50 %
1
12.50 %
1
12.50 %
PAR-POSTM
29
106
0.07 %
6
5.66 %
98
92.45 %
4
3.77 %
2
1.89 %
0
0.00 %
PAR-RAPID
2
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-HERD-S
2
40
0.03 %
4
10.00 %
28
70.00 %
8
20.00 %
8
20.00 %
0
0.00 %
PAR-IR-EX
2
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
28
2,825
1.86 %
52
1.84 %
2628
93.03 %
185
6.55 %
135
4.78 %
10
0.35 %
PAR-OTHER
3
115
0.08 %
9
7.83 %
93
80.87 %
19
16.52 %
13
11.30 %
0
0.00 %
PAR-PERSIS
1
5
0.00 %
2
40.00 %
3
60.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-POSTM
47
85
0.06 %
5
5.88 %
75
88.24 %
7
8.24 %
4
4.71 %
1
1.18 %
PAR-RAPID
3
10
0.01 %
2
20.00 %
7
70.00 %
1
10.00 %
1
10.00 %
0
0.00 %
PAR-RECUR
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
3
396
0.26 %
40
10.10 %
322
81.31 %
40
10.10 %
34
8.59 %
0
0.00 %
Wales - UNKNOWN
Carms
PAR-IR-SEV
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales
1136
36210
23.86 %
2155
5.95 %
31495
86.98 %
3020
8.34 %
2392
6.61 %
169
0.47 %
Scotland - Scotland
Argyll & Bute
SER-NSR
1
3
0.00 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-OTHER
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Inverness-shire
PAR-NEW-IN
1
120
0.08 %
2
1.67 %
110
91.67 %
8
6.67 %
8
6.67 %
0
0.00 %
Kirkcudbright
PAR-NEW-IN
4
493
0.32 %
8
1.62 %
432
87.63 %
67
13.59 %
53
10.75 %
0
0.00 %
Wigtown
PAR-NEW-IN
7
654
0.43 %
15
2.29 %
594
90.83 %
55
8.41 %
45
6.88 %
0
0.00 %
Scotland
14
1272
0.84 %
25
1.97 %
1141
89.70 %
130
10.22 %
106
8.33 %
0
0.00 %
Grand Total
Sum:
1983 151738
6364
134373
12497
10093
909
*For test criteria please refer to Operational notes.
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 3a. Summary of IFN Gamma results by country and protocol August 2022
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
98
13170
99.7%
438
3.3%
11896
90.3%
1071
8.1%
830
6.3%
6
0.0%
Serial/Extended
1
36
0.3%
4
11.1%
30
83.3%
2
5.6%
2
5.6%
0
0.0 %
Total
99
13206
100.0%
442
3.3%
11926
90.3%
1073
8.1%
832
6.3%
6
0.0%
Scotland
Parallel
4
247
100.0%
3
1.2%
221
89.5%
24
9.7%
23
9.3%
0
0.0 %
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
4
247
100.0%
3
1.2%
221
89.5%
24
9.7%
23
9.3%
0
0.0 %
Wales
Parallel
153
4665
74.0%
243
5.2%
4075
87.4%
457
9.8%
332
7.1%
15
0.3%
Serial/Extended
18
xx-xxxx-xxxx
26.0%
70
4.3%
1486
90.6%
101
6.2%
83
5.1%
1
0.1%
Total
171
6305
100.0%
313
5.0%
5561
88.2%
558
8.9%
415
6.6%
16
0.3%
GB
Parallel
255
18082
91.5%
684
3.8%
16192
89.5%
1552
8.6%
1185
6.6%
21
0.1%
Serial/Extended
19
1676
8.5%
74
4.4%
1516
90.5%
103
6.1%
85
5.1%
1
0.1%
Total
274
19758
100.0%
758
3.8%
17708
89.6%
1655
8.4%
1270
6.4%
22
0.1%
99.00
171.00
4.00
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is possible for the laboratory
to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative result will be reported. Therefore, the total number
of samples = the sum of positive, negative, resample and reject samples only.

Table 3b. Summary of IFN Gamma results by country and protocol (Total 2022)
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
825 114004
99.8%
4164
3.7% 101525
89.1%
9328
8.2%
7579
6.6%
736
0.6%
Serial/Extended
8
252
0.2%
20
7.9%
212
84.1%
19
7.5%
16
6.3%
4
1.6%
Total
833 114256
100.0%
4184
3.7% 101737
89.0%
9347
8.2%
7595
6.6%
740
0.6%
Scotland
Parallel
12
1267
99.6%
25
2.0%
1136
89.7%
130
10.3%
106
8.4%
0
0.0 %
Serial/Extended
2
5
0.4%
0
0.0 %
5 100.0%
0
0.0 %
0
0.0 %
0
0.0 %
Total
14
1272
100.0%
25
2.0%
1141
89.7%
130
10.2%
106
8.3%
0
0.0 %
Wales
Parallel
1009
23857
65.9%
1331
5.6%
20762
87.0%
2085
8.7%
1655
6.9%
109
0.5%
Serial/Extended
127
12353
34.1%
824
6.7%
10733
86.9%
935
7.6%
737
6.0%
60
0.5%
Total
1136
36210
100.0%
2155
6.0%
31495
87.0%
3020
8.3%
2392
6.6%
169
0.5%
GB
Parallel
xx-xxxx-xxxx
91.7%
5520
4.0% 123423
88.7%
11543
8.3%
9340
6.7%
845
0.6%
Serial/Extended
137
12610
8.3%
844
6.7%
10950
86.8%
954
7.6%
753
6.0%
64
0.5%
Total
1983 151738
100.0%
6364
4.2% 134373
88.6%
12497
8.2%
10093
6.7%
909
0.6%
833.00
#######
14.00
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is possible for the laboratory
to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative result will be reported. Therefore, the total number
of samples = the sum of positive, negative, resample and reject samples only.

Submission Reason
No
submissions Samples
Gamma Positive
Gamma Negatives
Retest
Resample
Reject
n
% of total
n
%
n
%
n
%
n
%
n
%
GB
Extended Flexible IFN-GAMMA test
19
1676
8.5%
74
4.4%
1516
90.5%
103
6.1 %
85
5.1 %
1
0.1 %
Parallel – chronic breakdown
2
344
1.7%
5
1.5%
305
88.7%
38
11.0 %
34
9.9 %
0
Parallel - Herd or Group Slaughter
2
162
0.8%
30
18.5%
123
75.9%
20
12.3 %
9
5.6 %
0
Parallel - IRs in Exit Strategy for persistent her
12
54
0.3%
18
33.3%
34
63.0%
4
7.4 %
2
3.7 %
0
Parallel New Infection
55
3963
20.1%
132
3.3%
3415
86.2%
535
13.5 %
404
10.2 %
12
0.3 %
Parallel - new infection cull area
2
40
0.2%
0
0.0 %
38
95.0%
2
5.0 %
2
5.0 %
0
Parallel - Other
12
200
1.0%
30
15.0%
156
78.0%
21
10.5 %
14
7.0 %
0
Parallel Persistent Infection
17
2210
11.2%
78
3.5%
2042
92.4%
111
5.0 %
83
3.8 %
7
0.3 %
Parallel - persistent infection cull area
2
211
1.1%
1
0.5%
204
96.7%
9
4.3 %
6
2.8 %
0
Parallel – post-mvt test coupled with IDEXX an
8
18
0.1%
2
11.1%
14
77.8%
2
11.1 %
2
11.1 %
0
Parallel - Rapid Testing Two-times IRs
32
55
0.3%
9
16.4%
41
74.5%
5
9.1 %
5
9.1 %
0
Parallel - Recurrent breakdowns
74
10480
53.0%
323
3.1%
9543
91.1%
789
7.5 %
613
5.8 %
1
0.0 %
Parallel - severe IRs - in persistent herds
37
345
1.7%
56
16.2%
277
80.3%
16
4.6 %
11
3.2 %
1
0.3 %
Total
274
19758
100.0%
758
3.8%
17708
89.6%
1655
8.4 %
1270
6.4 %
22
0.1 %
Table 4a. Summaryof IFN Gamma results by submission reason (August 2022)
England - HRA
Extended Flexible IFN-GAMMA test
1
36
0.2%
4
11.1%
30
83.3%
2
5.6 %
2
5.6 %
0
Parallel – chronic breakdown
2
344
1.7%
5
1.5%
305
88.7%
38
11.0 %
34
9.9 %
0
Parallel - Herd or Group Slaughter
1
161
0.8%
30
18.6%
122
75.8%
20
12.4 %
9
5.6 %
0
Parallel New Infection
1
77
0.4%
2
2.6%
64
83.1%
16
20.8 %
11
14.3 %
0
Parallel - new infection cull area
2
40
0.2%
0
0.0 %
38
95.0%
2
5.0 %
2
5.0 %
0
Parallel - Other
3
63
0.3%
12
19.0%
42
66.7%
10
15.9 %
9
14.3 %
0
Parallel Persistent Infection
1
268
1.4%
7
2.6%
244
91.0%
18
6.7 %
14
5.2 %
3
1.1 %
Parallel - persistent infection cull area
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Parallel - Recurrent breakdowns
62
9632
48.7%
299
3.1%
8773
91.1%
719
7.5 %
560
5.8 %
0
England - HRA
74
10622
53.8%
359
3.4%
9619
90.6%
825
7.8 %
641
6.0 %
3
0.0 %
England - Edge
Parallel New Infection
10
798
4.0%
61
7.6%
669
83.8%
80
10.0 %
67
8.4 %
1
0.1 %
Parallel - persistent infection cull area
1
210
1.1%
1
0.5%
203
96.7%
9
4.3 %
6
2.9 %
0
Parallel - Recurrent breakdowns
5
520
2.6%
8
1.5%
479
92.1%
48
9.2 %
33
6.3 %
0
England - Edge
16
1528
7.7%
70
4.6%
1351
88.4%
137
9.0 %
106
6.9 %
1
0.1 %
England - LRA
Parallel New Infection
9
1056
5.3%
13
1.2%
956
90.5%
111
10.5 %
85
8.0 %
2
0.2 %
England - LRA
9
1056
5.3%
13
1.2%
956
90.5%
111
10.5 %
85
8.0 %
2
0.2 %
Wales - High TB
Extended Flexible IFN-GAMMA test
16
1489
7.5%
58
3.9%
1353
90.9%
94
6.3 %
77
5.2 %
1
0.1 %
Parallel - IRs in Exit Strategy for persistent her
10
50
0.3%
16
32.0%
32
64.0%
4
8.0 %
2
4.0 %
0
Parallel New Infection
1
13
0.1%
0
0.0 %
8
61.5%
7
53.8 %
5
38.5 %
0
Parallel - Other
5
35
0.2%
9
25.7%
26
74.3%
0
0
0
Parallel Persistent Infection
10
1251
6.3%
41
3.3%
1155
92.3%
73
5.8 %
52
4.2 %
3
0.2 %
Parallel - Rapid Testing Two-times IRs
24
41
0.2%
7
17.1%
29
70.7%
5
12.2 %
5
12.2 %
0
Parallel - Recurrent breakdowns
7
328
1.7%
16
4.9%
291
88.7%
22
6.7 %
20
6.1 %
1
0.3 %
Parallel - severe IRs - in persistent herds
28
228
1.2%
44
19.3%
174
76.3%
14
6.1 %
9
3.9 %
1
0.4 %
Wales - High TB
101
3435
17.4%
191
5.6%
3068
89.3%
219
6.4 %
170
4.9 %
6
0.2 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
2
151
0.8%
12
7.9%
133
88.1%
7
4.6 %
6
4.0 %
0
Parallel - IRs in Exit Strategy for persistent her
1
2
0.0%
2
100.0%
0
0.0 %
0
0
0
Parallel New Infection
17
1142
5.8%
25
2.2%
935
81.9%
238
20.8 %
177
15.5 %
5
0.4 %
Parallel - Other
3
11
0.1%
0
0.0 %
10
90.9%
2
18.2 %
1
9.1 %
0
Parallel Persistent Infection
5
686
3.5%
28
4.1%
640
93.3%
20
2.9 %
17
2.5 %
1
0.1 %
Parallel – post-mvt test coupled with IDEXX an
3
6
0.0%
1
16.7%
3
50.0%
2
33.3 %
2
33.3 %
0
Parallel - Rapid Testing Two-times IRs
8
14
0.1%
2
14.3%
12
85.7%
0
0
0
Parallel - severe IRs - in persistent herds
8
116
0.6%
12
10.3%
102
87.9%
2
1.7 %
2
1.7 %
0
Wales - Intermediate TB
47
2128
10.8%
82
3.9%
1835
86.2%
271
12.7 %
205
9.6 %
6
0.3 %
Wales - Low TB
Parallel - Herd or Group Slaughter
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Parallel - IRs in Exit Strategy for persistent her
1
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Parallel New Infection
13
630
3.2%
28
4.4%
562
89.2%
59
9.4 %
36
5.7 %
4
0.6 %
Parallel - Other
1
91
0.5%
9
9.9%
78
85.7%
9
9.9 %
4
4.4 %
0
Parallel Persistent Infection
1
5
0.0%
2
40.0%
3
60.0%
0
0
0
Parallel – post-mvt test coupled with IDEXX an
5
12
0.1%
1
8.3%
11
91.7%
0
0
0
Parallel - severe IRs - in persistent herds
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Wales - Low TB
23
742
3.8%
40
5.4%
658
88.7%
68
9.2 %
40
5.4 %
4
0.5 %
Scotland - Scotland
Parallel New Infection
4
247
1.3%
3
1.2%
221
89.5%
24
9.7 %
23
9.3 %
0
Scotland - Scotland
4
247
1.3%
3
1.2%
221
89.5%
24
9.7 %
23
9.3 %
0

Submission Reason
No
submissions Samples
Gamma Positive
Gamma Negatives
Retest
Resample
Reject
n
% of total
n
%
n
%
n
%
n
%
n
%
GB
Extended Flexible IFN-GAMMA test
134
12604
8.3%
844
6.7%
10944
86.8%
954
7.6 %
753
6.0 %
64
0.5 %
Parallel – chronic breakdown
20
2621
1.7%
86
3.3%
2368
90.3%
200
7.6 %
167
6.4 %
0
Parallel - Herd or Group Slaughter
7
273
0.2%
48
17.6%
200
73.3%
41
15.0 %
25
9.2 %
0
Parallel - IRs in Exit Strategy for persistent herds
75
280
0.2%
79
28.2%
190
67.9%
14
5.0 %
10
3.6 %
1
0.4 %
Parallel New Infection
337
30942
20.4%
873
2.8%
27470
88.8%
2876
9.3 %
2349
7.6 %
250
0.8 %
Parallel - new infection cull area
59
7885
5.2%
365
4.6%
6970
88.4%
635
8.1 %
539
6.8 %
11
0.1 %
Parallel - Other
83
2866
1.9%
170
5.9%
2493
87.0%
248
8.7 %
199
6.9 %
4
0.1 %
Parallel Persistent Infection
110
14468
9.5%
568
3.9%
12678
87.6%
1215
8.4 %
977
6.8 %
245
1.7 %
Parallel - persistent infection cull area
29
5246
3.5%
201
3.8%
4671
89.0%
435
8.3 %
352
6.7 %
22
0.4 %
Parallel – post-mvt test coupled with IDEXX anti
122
355
0.2%
24
6.8%
316
89.0%
20
5.6 %
13
3.7 %
2
0.6 %
Parallel - Rapid Testing Two-times IRs
252
628
0.4%
162
25.8%
415
66.1%
46
7.3 %
41
6.5 %
10
1.6 %
Parallel - Recurrent breakdowns
522
72150
47.5%
2628
3.6%
64648
89.6%
5728
7.9 %
4602
6.4 %
272
0.4 %
Parallel - severe IRs - in persistent herds
230
1414
0.9%
316
22.3%
1004
71.0%
85
6.0 %
66
4.7 %
28
2.0 %
Serial - Other
1
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Serial - Suspected NSR Herd
2
4
0.0%
0
0.0 %
4
100.0%
0
0
0
Total
1983 151738
100.0%
6364
4.2%
134373
88.6%
12497
8.2 %
10093
6.7 %
909
0.6 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2022)
England - HRA
Extended Flexible IFN-GAMMA test
7
251
0.2%
20
8.0%
211
84.1%
19
7.6 %
16
6.4 %
4
1.6 %
Parallel – chronic breakdown
20
2621
1.7%
86
3.3%
2368
90.3%
200
7.6 %
167
6.4 %
0
Parallel - Herd or Group Slaughter
3
230
0.2%
43
18.7%
170
73.9%
33
14.3 %
17
7.4 %
0
Parallel New Infection
4
389
0.3%
25
6.4%
329
84.6%
48
12.3 %
35
9.0 %
0
Parallel - new infection cull area
47
5647
3.7%
306
5.4%
4922
87.2%
471
8.3 %
411
7.3 %
8
0.1 %
Parallel - Other
29
xx-xxxx-xxxx
1.1%
90
5.3%
1514
89.2%
120
7.1 %
93
5.5 %
1
0.1 %
Parallel Persistent Infection
52
8323
5.5%
338
4.1%
7128
85.6%
750
9.0 %
630
7.6 %
227
2.7 %
Parallel - persistent infection cull area
22
4074
2.7%
197
4.8%
3582
87.9%
328
8.1 %
274
6.7 %
21
0.5 %
Parallel - Recurrent breakdowns
420
60963
40.2%
2299
3.8%
54409
89.2%
5003
8.2 %
4003
6.6 %
252
0.4 %
England - Edge
Parallel New Infection
103
11164
7.4%
398
3.6%
9862
88.3%
989
8.9 %
838
7.5 %
66
0.6 %
Parallel - new infection cull area
11
2085
1.4%
58
2.8%
1922
92.2%
132
6.3 %
104
5.0 %
1
0.0 %

Table 4b. Summary of IFN Gamma results by submission reason (Total 2022) Cont.
Parallel - Other
2
86
0.1%
3
3.5%
75
87.2%
9
10.5 %
8
9.3 %
0
Parallel Persistent Infection
10
2501
1.6%
72
2.9%
2302
92.0%
177
7.1 %
124
5.0 %
3
0.1 %
Parallel - persistent infection cull area
7
1172
0.8%
4
0.3%
1089
92.9%
107
9.1 %
78
6.7 %
1
0.1 %
Parallel - Recurrent breakdowns
35
7453
4.9%
144
1.9%
6909
92.7%
466
6.3 %
393
5.3 %
7
0.1 %
England - LRA
Parallel New Infection
59
5445
3.6%
100
1.8%
4818
88.5%
463
8.5 %
380
7.0 %
147
2.7 %
Parallel - new infection cull area
1
153
0.1%
1
0.7%
126
82.4%
32
20.9 %
24
15.7 %
2
1.3 %
Serial - Suspected NSR Herd
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
England
833 114256
75.3%
4184
3.7%
101737
89.0%
9347
8.2 %
7595
6.6 %
740
0.6 %
Wales - High TB
Extended Flexible IFN-GAMMA test
107
10941
7.2%
726
6.6%
9514
87.0%
827
7.6 %
652
6.0 %
50
0.5 %
Parallel - Herd or Group Slaughter
1
2
0.0%
1
50.0%
1
50.0%
0
0
0
Parallel - IRs in Exit Strategy for persistent herd
56
220
0.1%
72
32.7%
142
64.5%
9
4.1 %
5
2.3 %
1
0.5 %
Parallel New Infection
1
13
0.0%
0
0.0 %
8
61.5%
7
53.8 %
5
38.5 %
0
Parallel - Other
34
669
0.4%
53
7.9%
567
84.8%
58
8.7 %
49
7.3 %
0
Parallel Persistent Infection
37
2747
1.8%
125
4.6%
2423
88.2%
248
9.0 %
186
6.8 %
13
0.5 %
Parallel – post-mvt test coupled with IDEXX ant
1
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Parallel - Rapid Testing Two-times IRs
204
526
0.3%
133
25.3%
345
65.6%
43
8.2 %
38
7.2 %
10
1.9 %
Parallel - Recurrent breakdowns
60
3502
2.3%
155
4.4%
3154
90.1%
229
6.5 %
180
5.1 %
13
0.4 %
Parallel - severe IRs - in persistent herds
194
1185
0.8%
285
24.1%
818
69.0%
77
6.5 %
60
5.1 %
22
1.9 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
17
1016
0.7%
58
5.7%
897
88.3%
68
6.7 %
51
5.0 %
10
1.0 %
Parallel - IRs in Exit Strategy for persistent herd
14
47
0.0%
6
12.8%
36
76.6%
5
10.6 %
5
10.6 %
0
Parallel New Infection
80
7546
5.0%
183
2.4%
6776
89.8%
727
9.6 %
564
7.5 %
23
0.3 %
Parallel - Other
12
290
0.2%
15
5.2%
238
82.1%
41
14.1 %
35
12.1 %
2
0.7 %
Parallel Persistent Infection
10
892
0.6%
31
3.5%
822
92.2%
40
4.5 %
37
4.1 %
2
0.2 %
Parallel – post-mvt test coupled with IDEXX ant
45
162
0.1%
13
8.0%
141
87.0%
9
5.6 %
7
4.3 %
1
0.6 %
Parallel - Rapid Testing Two-times IRs
43
90
0.1%
27
30.0%
61
67.8%
2
2.2 %
2
2.2 %
0
Parallel - Recurrent breakdowns
6
231
0.2%
29
12.6%
176
76.2%
30
13.0 %
26
11.3 %
0
Parallel - severe IRs - in persistent herds
34
227
0.1%
31
13.7%
184
81.1%
8
3.5 %
6
2.6 %
6
2.6 %
Wales - Low TB
Extended Flexible IFN-GAMMA test
3
396
0.3%
40
10.1%
322
81.3%
40
10.1 %
34
8.6 %
0
Parallel - Herd or Group Slaughter
3
41
0.0%
4
9.8%
29
70.7%
8
19.5 %
8
19.5 %
0
Parallel - IRs in Exit Strategy for persistent herd
5
13
0.0%
1
7.7%
12
92.3%
0
0
0
Parallel New Infection
78
5118
3.4%
142
2.8%
4541
88.7%
512
10.0 %
421
8.2 %
14
0.3 %
Parallel - Other
6
123
0.1%
9
7.3%
99
80.5%
20
16.3 %
14
11.4 %
1
0.8 %
Parallel Persistent Infection
1
5
0.0%
2
40.0%
3
60.0%
0
0
0

Table 4b. Summary of IFN Gamma results by submission reason (Total 2022) Cont.
Parallel – post-mvt test coupled with IDEXX ant
76
191
0.1%
11
5.8%
173
90.6%
11
5.8 %
6
3.1 %
1
0.5 %
Parallel - Rapid Testing Two-times IRs
5
12
0.0%
2
16.7%
9
75.0%
1
8.3 %
1
8.3 %
0
Parallel - Recurrent breakdowns
1
1
0.0%
1
100.0%
0
0.0 %
0
0
0
Parallel - severe IRs - in persistent herds
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Wales - UNKNOWN
Parallel - severe IRs - in persistent herds
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Wales
1136
36210
23.9%
2155
6.0%
31495
87.0%
3020
8.3 %
2392
6.6 %
169
0.5 %
Scotland - Scotland
Parallel New Infection
12
1267
0.8%
25
2.0%
1136
89.7%
130
10.3 %
106
8.4 %
0
Serial - Other
1
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Serial - Suspected NSR Herd
1
3
0.0%
0
0.0 %
3
100.0%
0
0
0
Scotland
14
1272
0.8%
25
2.0%
1141
89.7%
130
10.2 %
106
8.3 %
0

Year
Month
Herds
sampled
Samples
tested
Herds
with
positives
IFNg+
samples
Wrong
Eartags
No PM
No
Cult
No PM
Cult
Pend
No PM
Cult
Neg
No PM
Cult
Mb
No
PM
Cult
Other
VL No
Cult
VL
Cult
Neg
VL
Cult
Pend
VL
Cult
Mb
VL
Cult
Other
NVL
No
Cult
NVL
Cult
Pend
NVL
Cult
Neg
NVL
Cult
Mb
NVL
Cult
Other
2021 September
274
15805
130
890
13
0
0
0
0
95
1
0
7
0
742
0
31
0
0
October
276
19790
140
814
15
0
0
0
0
44
3
0
17
2
696
0
36
1
0
November
329
25737
195
1349
26
0
0
0
0
92
1
0
25
1
1143
0
61
0
0
December
238
13117
138
759
14
0
0
0
0
42
5
0
1
2
656
0
38
0
0
2022 January
262
18563
129
852
19
0
0
0
0
32
1
0
17
0
745
1
36
0
0
February
229
18198
132
966
1
19
0
0
0
0
84
3
0
3
0
765
0
91
0
0
March
268
23046
165
1108
35
0
0
0
0
60
4
0
14
0
929
0
65
1
0
April
220
15067
130
687
9
0
0
0
0
50
2
0
10
1
563
0
52
0
0
May
269
23949
158
918
2
19
0
0
0
0
62
1
0
9
2
778
1
43
1
0
June
213
17755
114
590
19
0
0
0
0
48
0
2
1
0
460
10
45
1
4
July
248
15402
109
485
12
0
0
0
0
46
0
6
0
0
374
45
1
0
1
August
274
19758
144
758
104
240
0
0
0
0
18
0
4
0
0
308
19
0
0
0
Totals (last
12 months)
3100
226187
xx-xxxx-xxxx
10176
107
440
0
0
0
0
673
21
12
104
8
8159
76
499
4
5
Table 5a. Summary of PM and culture results for IFNg positive animals.
Please note: “Wrong Eartags” – this column represents those samples in the laboratory information management system (LIMS) for which there is not a matching ear tag in the Cattle TB
Data dataset (SAM) at the time of monthly report trawling. Most resolve in subsequent monthly reports as the field data is added to SAM.

Country
Herds
sampled
Samples
tested
Herds
with
positives
IFNg+
samples
No PM
No
Cult
No PM
Cult
Pend
No PM
Cult
Neg
No PM
Cult
Mb
No
PM
Cult
Other
VL No
Cult
VL
Cult
Neg
VL
Cult
Pend
VL
Cult
Mb
VL
Cult
Other
NVL
No
Cult
NVL
Cult
Pend
NVL
Cult
Neg
NVL
Cult
Mb
NVL
Cult
Other
England
1306
170664
866
6875
288
0
0
0
0
630
9
3
39
6
5773
0
23
0
0
Scotland
23
2237
15
46
4
0
0
0
0
6
0
0
0
0
34
0
2
0
0
Wales
1771
53286
803
3255
148
0
0
0
0
37
12
9
65
2
2352
76
474
4
5
Totals
3100
226187
xx-xxxx-xxxx
10176
440
0
0
0
0
673
21
12
104
8
8159
76
499
4
5
Table 5b. Summary of culture results for IFNg positive animals (Samples received in last 12 months)

Figure 4a. Number of herds sampled for IFNg and numbers of herds with any
positive IFNg results.
116
227
131
192
115
147
88
96
100
127
95
149
152
180
117
173
145
175
127
189
147
200
138
186
142
233
117
235
163
256
156
211
143
214
147
208
134
164
145
167
144
130
136
140
134
195
100
138
133
129
97
132
103
165
90
130
111
158
99
114
139
109
130
144
0
50
100
150
200
250
300
350
400
450
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
2020
2021
2022
IFNg Positive herds
IFNg Negative herds
29262
1367
31244
1289
17118
764
10415
408
xx-xxxx-xxxx
858
22130
860
21221
1153
23461
888
24351
762
25236
1198
24710
1359
22625
1228
25840
1653
26496
1637
33735
1867
26079
1571
25277
1561
26185
1314
23382
1077
16764
912
14734
889
18674
814
24089
1349
12181
759
17250
852
xx-xxxx-xxxx
966
21357
1108
14149
687
22824
918
17067
590
14705
485
18751
758
0
5000
10000
15000
20000
25000
30000
35000
40000
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
2020
2021
2022
IFNg positive animals
IFNg non positive animals*
Figure 4b. Number of animals sampled for IFNg and numbers of animals with
positive IFNg results.
*Includes all animals with IFNg test negative, resample and reject outcomes

0
1
2
3
4
5
6
7
8
9
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
2020
2021
2022
%Rejected
%Resampled
% NEG Fail
% POS Fail
% of total
submitted
Figure 5. Rates of resamples including the fail rates broken down for positive
(POS) and negative (NEG) controls.

0
10
20
30
40
50
60
70
80
90
W Yorks
Wiltshire
W Glamorgan
Staffs
Shropshire
Powys
Oxon
Northants
Lincs
Inverness-shire
Gwynedd
Gloucs
Derbyshire
Corn & Scilly
Ceredigion
Bucks
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during August 2022 (% submission per
County)
County
%Resampled %Retested
Avon
5.39 %
7.60 %
Bucks
11.80 %
13.66 %
Carms
3.61 %
5.25 %
Ceredigion
3.93 %
4.49 %
Cheshire
2.84 %
4.27 %
Corn & Scilly
5.91 %
7.31 %
Cumbria
6.02 %
9.16 %
Derbyshire
3.75 %
7.19 %
Devon
6.11 %
8.00 %
Gloucs
32.00 %
36.00 %
Gwent
7.00 %
8.50 %
Gwynedd
10.32 %
13.55 %
Heref
7.83 %
12.25 %
Inverness-shire
6.67 %
6.67 %
Leics & Rut
4.55 %
5.81 %
Lincs
8.29 %
9.89 %
NE Wales
6.39 %
9.00 %
Northants
18.42 %
19.74 %
N Yorks
11.11 %
13.89 %
Oxon
25.53 %
27.66 %
Pembs
5.68 %
6.79 %
Powys
18.22 %
25.60 %
S Glamorgan
Shropshire
9.38 %
10.27 %
Somerset excl
3.97 %
4.97 %
Staffs
4.57 %
5.92 %
Warks
7.89 %
10.09 %
W Glamorgan
Wigtown
11.81 %
12.60 %
Wiltshire
10.11 %
13.03 %
Worcs
40.91 %
40.91 %
W Yorks
6.67 %
6.67 %

Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
13069
442
3.4%
13206
442
3.3%
Wales
6205
313
5.0%
6305
313
5.0%
Scotland
235
3
1.3%
247
3
1.2%
GB
19509
758
3.9%
19758
758
3.8%
Table 6a (i): Number of animals and submissions tested in August 2022
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
107054
4184
3.9%
114256
4184
3.7%
Wales
34141
2155
6.3%
36210
2155
6.0%
Scotland
1199
25
2.1%
1272
25
2.0%
GB
142392
6364
4.5%
151738
6364
4.2%
Table 6b (i): Number of animals and submissions tested in 2022 Up to end of August
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
14285
651
4.6%
14448
651
4.5%
Wales
3391
261
7.7%
3472
261
7.5%
GB
17676
912
5.2%
17920
912
5.1%
Table 6a (ii): Number of animals and submissions tested in August 2021
Table 6b (ii): Number of animals and submissions tested in 2021 Up to end of August
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
162615
8644
5.3%
171161
8647
5.1%
Wales
43565
2819
6.5%
46703
2819
6.0%
Scotland
577
129
22.4%
1058
129
12.2%
GB
206747
11592
5.6%
218922
11595
5.3%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Devon
PRV-SE
2
47
0
0
Dorset
PRV-SP
1
1
0
0
Total
3
48
0
*SER-IOM: Serial High Specificity test – Isle of Man; PRV-SE: Private High Sensitivity test - England;
PRV-SP: Private High Specificity test – England
Table 7a Number of private samples August 2022
Table 7b Number of private samples 2022
* Test type
Num
Submissions
Num
Samples
Num
Positives
Private
% Positive
Devon
PRV-SE
3
102
5
4.90 %
PRV-SP
1
2
0
0
Dorset
PRV-SP
2
3
0
0
Gloucestershire
PRV-SP
2
4
0
0
Hampshire
PRV-SE
1
7
2
28.57 %
Herefordshire
PRV-SP
1
1
0
0
Leicestershire and Rutland
PRV-SP
4
4
0
0
Somerset excl North
PRV-SE
1
5
0
0
PRV-SP
3
17
1
5.88 %
Wiltshire
PRV-SE
4
67
9
13.43 %
Total
22
212
17
8.02 %

Country
County
Test Reason
Num
Submissions
Num Samples
Tested
Num Positive
Samples
% Positive
Wales
Carmarthenshire
BOV-IR-C
4
29
3
10.3%
BOV-P
1
77
2
2.6%
North East Wales
BOV-IR-C
10
124
6
4.8%
BOV-OTHER
1
147
0
0
BOV-P
1
84
7
8.3%
BOV-POSTM
5
9
1
11.1%
Pembrokeshire
BOV-IR-C
15
145
38
26.2%
BOV-IR-EX
4
30
14
46.7%
BOV-OTHER
4
765
33
4.3%
Powys
BOV-IR-C
2
5
2
40.0%
Shropshire
BOV-IR-C
1
1
0
0
South Wales
BOV-IR-C
3
42
8
19.0%
Wales
51
1,458
114
7.8%
All GB
51
1,458
114
7.8 %
Table 8a Number of Cattle Antibody Tests August 2022
Table 8b Number of Cattle Antibody Tests 2022
Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
Wales
Carmarthenshire
BOV-IR-C
22
192
51
26.6%
BOV-IR-EX
4
22
2
9.1%
BOV-OTHER
4
678
14
2.1%
BOV-P
2
105
2
1.9%
Ceredigion
BOV-IR-C
19
155
23
14.8%
BOV-IR-EX
4
13
3
23.1%
BOV-P
2
62
6
9.7%
BOV-POSTM
1
13
4
30.8%
North East Wales
BOV-IR-C
35
296
30
10.1%
BOV-IR-EX
2
14
4
28.6%
BOV-OTHER
5
209
0
0
BOV-P
3
660
53
8.0%
BOV-POSTM
67
165
33
20.0%
North West Wales
BOV-POSTM
3
3
0
0
Pembrokeshire
BOV-IR-C
107
908
198
21.8%
BOV-IR-EX
19
122
36
29.5%
BOV-OTHER
12
1,356
77
5.7%
BOV-P
10
629
33
5.2%
OTHER
1
30
0
0
Powys
BOV-IR-C
18
100
21
21.0%
BOV-P
4
206
5
2.4%
BOV-POSTM
1
1
0
0
Shropshire
BOV-IR-C
1
1
0
0
South Wales
BOV-IR-C
13
107
20
18.7%
BOV-OTHER
2
30
5
16.7%
BOV-P
1
282
16
5.7%
Wales
362
6,359
636
10.0%

Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
All GB
362
6,359
636
10.0 %