Monthly report: Surveillance Project SB4008 IFNg Tests for Bovine Tuberculosis - September 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 193
Report Period 1st - 30th September 2022
Issued 10 October 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
September
2022
%
Total 2022
%
Submissions
205
2188
Samples
Total (%)
xx-xxxx-xxxx
100.00 %
xx-xxxx-xxxx
100.00 %
England
10842
65.97 %
125098
74.39 %
Wales
3634
22.11 %
39844
23.69 %
Scotland
1958
11.91 %
3230
1.92 %
Parallel Tests
PAR-CHR
0
0.00 %
2621
1.56 %
PAR-CUL-N
200
1.22 %
8085
4.81 %
PAR-CUL-P
328
2.00 %
5574
3.31 %
PAR-HERD-S
190
1.16 %
463
0.28 %
PAR-IR-EX
14
0.09 %
294
0.17 %
PAR-IR-SEV
205
1.25 %
1619
0.96 %
PAR-NEW-IN
5059
30.78 %
36001
21.41 %
PAR-OTHER
176
1.07 %
3042
1.81 %
PAR-PERSIS
474
2.88 %
14942
8.88 %
PAR-POSTM
5
0.03 %
360
0.21 %
PAR-RAPID
46
0.28 %
674
0.40 %
PAR-RECUR
8640
52.57 %
80790
48.04 %
Total(% of all samples)
15337
93.32 %
154465
91.85 %
Serial/Extended Tests
SER-ANOM
0
0.00 %
SER-FLEXI
1097
6.68 %
13701
8.15 %
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)
1097
6.68 %
13707
8.15 %
Total
xx-xxxx-xxxx
100.00 %
xx-xxxx-xxxx
100.00 %
Retests
Total (% of all samples)
1223
7.44 %
13720
8.16 %
England
748
4.55 %
10095
6.00 %
Wales
364
2.21 %
3384
2.01 %
Scotland
111
0.68 %
241
0.14 %
Resamples
Total (% of all samples)
930
5.66 %
11023
6.55 %
England
584
3.55 %
8179
4.86 %
Wales
258
1.57 %
2650
1.58 %
Scotland
88
0.54 %
194
0.12 %
Rejects
Total (% of all samples)
60
0.37 %
969
0.58 %
England
55
0.33 %
795
0.47 %
Wales
2
0.01 %
171
0.10 %
Scotland
3
0.02 %
3
0.00 %
Table 1. Monthly Totals for September 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-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-CUL-N
200
1.2 %
PAR-CUL-P
328
2.0 %
PAR-HERD-S
190
1.2 %
PAR-IR-EX
14
0.1 %
PAR-IR-SEV
205
1.2 %
PAR-NEW-IN
5059
30.8 %
PAR-OTHER
176
1.1 %
PAR-PERSIS
474
2.9 %
PAR-POSTM
5
0.0 %
PAR-RAPID
46
0.3 %
PAR-RECUR
8640
52.6 %
SER-FLEXI
1097
6.7 %
Total
xx-xxxx-xxxx
100.00 %
Figure 1. Number of samples submitted in each category during September 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
Wigtown
Inverness-shire
S Wales
Powys
Pembs
NE Wales
Mid Glamorgan
Gwynedd
Gwent
Ceredigion
Carms
W Yorks
Wiltshire
Staffs
Somerset excl N
Shropshire
Oxon
N Yorks
N Somer S Glos
Northants
Lincs
Heref
Gloucs
Dorset
Devon
Corn & Scilly
Cheshire
Berks
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
Breakdown of
Samples
submitted by
County
Figure 2. Number of samples submitted in each category by County during September 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
N Somer S Glos
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-RECUR
4
386
2.35 %
127
32.90 %
234
60.62 %
45
11.66 %
23
5.96 %
2
0.52 %
Corn & Scilly
PAR-RECUR
11
823
5.01 %
19
2.31 %
704
85.54 %
94
11.42 %
100
12.15 %
0
0.00 %
Devon
PAR-CUL-N
2
200
1.22 %
9
4.50 %
165
82.50 %
23
11.50 %
20
10.00 %
6
3.00 %
PAR-CUL-P
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-HERD-S
1
127
0.77 %
20
15.75 %
103
81.10 %
7
5.51 %
4
3.15 %
0
0.00 %
PAR-PERSIS
1
271
1.65 %
4
1.48 %
256
94.46 %
11
4.06 %
11
4.06 %
0
0.00 %
PAR-RECUR
2
111
0.68 %
13
11.71 %
91
81.98 %
9
8.11 %
7
6.31 %
0
0.00 %
Dorset
PAR-RECUR
2
279
1.70 %
8
2.87 %
252
90.32 %
24
8.60 %
19
6.81 %
0
0.00 %
Gloucs
PAR-RECUR
1
62
0.38 %
1
1.61 %
58
93.55 %
11
17.74 %
3
4.84 %
0
0.00 %
Heref
PAR-RECUR
7
643
3.91 %
13
2.02 %
594
92.38 %
45
7.00 %
34
5.29 %
2
0.31 %
N Somer S Glos
PAR-RECUR
1
58
0.35 %
2
3.45 %
53
91.38 %
9
15.52 %
3
5.17 %
0
0.00 %
Shropshire
PAR-RECUR
5
1,368
8.32 %
13
0.95 %
1313
95.98 %
52
3.80 %
42
3.07 %
0
0.00 %
Somerset excl N
PAR-RECUR
10
2,295
13.96 %
39
1.70 %
2150
93.68 %
93
4.05 %
67
2.92 %
39
1.70 %
SER-FLEXI
1
1
0.01 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
Staffs
PAR-PERSIS
1
55
0.33 %
0
0.00 %
40
72.73 %
17
30.91 %
15
27.27 %
0
0.00 %
PAR-RECUR
8
1,867
11.36 %
93
4.98 %
1657
88.75 %
134
7.18 %
115
6.16 %
2
0.11 %
Wiltshire
PAR-RECUR
2
314
1.91 %
27
8.60 %
255
81.21 %
49
15.61 %
32
10.19 %
0
0.00 %
England - Edge
Berks
PAR-RECUR
1
76
0.46 %
1
1.32 %
69
90.79 %
8
10.53 %
6
7.89 %
0
0.00 %
Cheshire
PAR-CUL-P
1
326
1.98 %
9
2.76 %
307
94.17 %
10
3.07 %
10
3.07 %
0
0.00 %
PAR-OTHER
1
73
0.44 %
12
xx-xxxx-xxxx %
55
75.34 %
6
8.22 %
5
6.85 %
1
1.37 %
PAR-RECUR
1
10
0.06 %
1
10.00 %
5
50.00 %
4
40.00 %
4
40.00 %
0
0.00 %
Northants
PAR-NEW-IN
3
201
1.22 %
2
1.00 %
181
90.05 %
21
10.45 %
18
8.96 %
0
0.00 %
Oxon
PAR-NEW-IN
3
805
4.90 %
14
1.74 %
771
95.78 %
32
3.98 %
19
2.36 %
1
0.12 %
England - LRA
Lincs
PAR-NEW-IN
5
418
2.54 %
9
2.15 %
384
91.87 %
39
9.33 %
23
5.50 %
2
0.48 %
N Yorks
PAR-NEW-IN
1
69
0.42 %
0
0.00 %
67
97.10 %
3
4.35 %
2
2.90 %
0
0.00 %
W Yorks
PAR-NEW-IN
1
2
0.01 %
0
0.00 %
1
50.00 %
1
50.00 %
1
50.00 %
0
0.00 %
Table 2a. Summary by County for September 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 September 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
England
77
10842
65.97 %
436
4.02 %
9767
90.08 %
748
6.90 %
584
5.39 %
55
0.51 %
Wales - High TB
Carms
PAR-IR-SEV
2
18
0.11 %
10
55.56 %
7
38.89 %
1
5.56 %
1
5.56 %
0
0.00 %
PAR-PERSIS
3
32
0.19 %
0
0.00 %
20
62.50 %
13
40.63 %
12
37.50 %
0
0.00 %
PAR-RAPID
1
2
0.01 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
2
237
1.44 %
7
2.95 %
218
91.98 %
27
11.39 %
13
5.49 %
0
0.00 %
SER-FLEXI
1
1
0.01 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
Ceredigion
PAR-IR-EX
1
4
0.02 %
1
25.00 %
2
50.00 %
1
25.00 %
1
25.00 %
0
0.00 %
PAR-IR-SEV
5
37
0.23 %
7
18.92 %
28
75.68 %
2
5.41 %
2
5.41 %
0
0.00 %
PAR-RAPID
2
11
0.07 %
4
36.36 %
6
54.55 %
1
9.09 %
1
9.09 %
0
0.00 %
SER-FLEXI
1
5
0.03 %
0
0.00 %
3
60.00 %
2
40.00 %
2
40.00 %
0
0.00 %
Gwent
PAR-IR-SEV
1
3
0.02 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
2
2
0.01 %
0
0.00 %
2
100.00 %
1
50.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
27
0.16 %
3
11.11 %
23
85.19 %
1
3.70 %
1
3.70 %
0
0.00 %
SER-FLEXI
2
117
0.71 %
2
1.71 %
111
94.87 %
8
6.84 %
4
3.42 %
0
0.00 %
Pembs
PAR-IR-EX
4
7
0.04 %
2
28.57 %
5
71.43 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
14
124
0.75 %
19
15.32 %
101
81.45 %
5
4.03 %
4
3.23 %
0
0.00 %
PAR-OTHER
1
16
0.10 %
1
6.25 %
12
75.00 %
3
18.75 %
3
18.75 %
0
0.00 %
PAR-PERSIS
2
96
0.58 %
1
1.04 %
79
82.29 %
21
21.88 %
16
16.67 %
0
0.00 %
PAR-RAPID
8
16
0.10 %
3
18.75 %
13
81.25 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
5
972
5.91 %
63
6.48 %
856
88.07 %
67
6.89 %
53
5.45 %
0
0.00 %
Powys
PAR-IR-EX
2
3
0.02 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
2
4
0.02 %
0
0.00 %
4
100.00 %
1
25.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
84
0.51 %
0
0.00 %
79
94.05 %
13
15.48 %
5
5.95 %
0
0.00 %
SER-FLEXI
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
S Wales
PAR-IR-SEV
2
15
0.09 %
2
13.33 %
12
80.00 %
2
13.33 %
1
6.67 %
0
0.00 %
PAR-RAPID
1
1
0.01 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Intermediate TB
Mid Glamorgan
PAR-RAPID
1
1
0.01 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-HERD-S
1
63
0.38 %
3
4.76 %
56
88.89 %
4
6.35 %
4
6.35 %
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 September 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-IR-SEV
5
8
0.05 %
1
12.50 %
6
75.00 %
1
12.50 %
1
12.50 %
0
0.00 %
PAR-NEW-IN
12
1,045
6.36 %
37
3.54 %
947
90.62 %
84
8.04 %
61
5.84 %
0
0.00 %
PAR-OTHER
1
29
0.18 %
0
0.00 %
23
79.31 %
12
41.38 %
6
20.69 %
0
0.00 %
PAR-PERSIS
6
20
0.12 %
1
5.00 %
11
55.00 %
9
45.00 %
8
40.00 %
0
0.00 %
PAR-POSTM
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
2
5
0.03 %
0
0.00 %
5
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Powys
PAR-NEW-IN
2
23
0.14 %
0
0.00 %
16
69.57 %
8
34.78 %
6
26.09 %
1
4.35 %
PAR-OTHER
1
58
0.35 %
0
0.00 %
49
84.48 %
12
20.69 %
9
15.52 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-NEW-IN
4
102
0.62 %
0
0.00 %
92
90.20 %
11
10.78 %
10
9.80 %
0
0.00 %
PAR-POSTM
3
4
0.02 %
0
0.00 %
3
75.00 %
1
25.00 %
1
25.00 %
0
0.00 %
PAR-RAPID
1
3
0.02 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-NEW-IN
12
436
2.65 %
3
0.69 %
400
91.74 %
52
11.93 %
32
7.34 %
1
0.23 %
PAR-RAPID
1
1
0.01 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales
120
3634
22.11 %
176
4.84 %
3199
88.03 %
364
10.02 %
258
7.10 %
2
0.06 %
Scotland - Scotland
Inverness-shire
PAR-NEW-IN
1
8
0.05 %
0
0.00 %
1
12.50 %
7
87.50 %
7
87.50 %
0
0.00 %
Wigtown
PAR-NEW-IN
7
1,950
11.87 %
60
3.08 %
1806
92.62 %
104
5.33 %
81
4.15 %
3
0.15 %
Scotland
8
1958
11.91 %
60
3.06 %
1807
92.29 %
111
5.67 %
88
4.49 %
3
0.15 %
Grand Total
Sum:
205
xx-xxxx-xxxx
672
14773
1223
930
60
*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
0.15 %
22
8.56 %
212
82.49 %
27
10.51 %
23
8.95 %
0
0.00 %
PAR-CUL-N
3
527
0.31 %
26
4.93 %
485
92.03 %
16
3.04 %
15
2.85 %
1
0.19 %
PAR-CUL-P
2
222
0.13 %
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
0.03 %
11
20.37 %
35
64.81 %
9
16.67 %
8
14.81 %
0
0.00 %
PAR-PERSIS
2
343
0.20 %
20
5.83 %
301
87.76 %
26
7.58 %
22
6.41 %
0
0.00 %
PAR-RECUR
23
2,490
1.48 %
226
9.08 %
2115
84.94 %
193
7.75 %
140
5.62 %
9
0.36 %
Corn & Scilly
PAR-CHR
2
197
0.12 %
9
4.57 %
166
84.26 %
22
11.17 %
22
11.17 %
0
0.00 %
PAR-CUL-N
7
595
0.35 %
54
9.08 %
520
87.39 %
32
5.38 %
21
3.53 %
0
0.00 %
PAR-CUL-P
5
684
0.41 %
27
3.95 %
609
89.04 %
54
7.89 %
48
7.02 %
0
0.00 %
PAR-OTHER
1
102
0.06 %
1
0.98 %
98
96.08 %
4
3.92 %
3
2.94 %
0
0.00 %
PAR-PERSIS
10
1,862
1.11 %
73
3.92 %
1656
88.94 %
160
8.59 %
133
7.14 %
0
0.00 %
PAR-RECUR
79
11,484
6.83 %
464
4.04 %
10067
87.66 %
1132
9.86 %
947
8.25 %
6
0.05 %
Devon
PAR-CHR
6
496
0.29 %
6
1.21 %
446
89.92 %
51
10.28 %
44
8.87 %
0
0.00 %
PAR-CUL-N
19
1,878
1.12 %
116
6.18 %
1583
84.29 %
196
10.44 %
172
9.16 %
7
0.37 %
PAR-CUL-P
7
1,197
0.71 %
47
3.93 %
1051
87.80 %
114
9.52 %
94
7.85 %
5
0.42 %
PAR-HERD-S
2
288
0.17 %
50
17.36 %
225
78.13 %
27
9.38 %
13
4.51 %
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
13
2,145
1.28 %
87
4.06 %
1909
89.00 %
179
8.34 %
146
6.81 %
3
0.14 %
PAR-RECUR
83
11,267
6.70 %
532
4.72 %
9865
87.56 %
1037
9.20 %
854
7.58 %
16
0.14 %
SER-FLEXI
2
145
0.09 %
4
2.76 %
128
88.28 %
11
7.59 %
9
6.21 %
4
2.76 %
Dorset
PAR-CUL-N
5
1,423
0.85 %
58
4.08 %
1279
89.88 %
100
7.03 %
83
5.83 %
3
0.21 %
PAR-OTHER
4
71
0.04 %
1
1.41 %
68
95.77 %
2
2.82 %
2
2.82 %
0
0.00 %
PAR-RECUR
13
1,718
1.02 %
73
4.25 %
1524
88.71 %
147
8.56 %
121
7.04 %
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
0.19 %
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
0.12 %
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
30
3,610
2.15 %
148
4.10 %
3224
89.31 %
287
7.95 %
234
6.48 %
4
0.11 %
Heref
PAR-CUL-P
2
625
0.37 %
32
5.12 %
570
91.20 %
35
5.60 %
23
3.68 %
0
0.00 %
PAR-HERD-S
2
69
0.04 %
13
18.84 %
48
69.57 %
13
18.84 %
8
11.59 %
0
0.00 %
PAR-OTHER
6
545
0.32 %
32
5.87 %
488
89.54 %
42
7.71 %
25
4.59 %
0
0.00 %
PAR-PERSIS
9
1,132
0.67 %
61
5.39 %
975
86.13 %
104
9.19 %
93
8.22 %
3
0.27 %
PAR-RECUR
56
7,112
4.23 %
240
3.37 %
6347
89.24 %
519
7.30 %
394
5.54 %
131
1.84 %
N Somer S Glos
PAR-RECUR
1
58
0.03 %
2
3.45 %
53
91.38 %
9
15.52 %
3
5.17 %
0
0.00 %
Shropshire
PAR-CHR
6
1,235
0.73 %
45
3.64 %
1125
91.09 %
81
6.56 %
65
5.26 %
0
0.00 %
PAR-NEW-IN
2
293
0.17 %
22
7.51 %
252
86.01 %
27
9.22 %
19
6.48 %
0
0.00 %
PAR-OTHER
3
246
0.15 %
4
1.63 %
221
89.84 %
22
8.94 %
21
8.54 %
0
0.00 %
PAR-PERSIS
10
2,064
1.23 %
77
3.73 %
1840
89.15 %
185
8.96 %
147
7.12 %
0
0.00 %
PAR-RECUR
69
11,437
6.80 %
232
2.03 %
10582
92.52 %
752
6.58 %
617
5.39 %
6
0.05 %
Somerset excl N
PAR-CUL-N
2
529
0.31 %
12
2.27 %
492
93.01 %
29
5.48 %
25
4.73 %
0
0.00 %
PAR-OTHER
3
87
0.05 %
15
17.24 %
65
74.71 %
8
9.20 %
7
8.05 %
0
0.00 %
PAR-PERSIS
3
239
0.14 %
4
1.67 %
215
89.96 %
24
10.04 %
20
8.37 %
0
0.00 %
PAR-RECUR
51
7,774
4.62 %
307
3.95 %
7081
91.09 %
453
5.83 %
340
4.37 %
46
0.59 %
SER-FLEXI
4
64
0.04 %
9
14.06 %
49
76.56 %
7
10.94 %
6
9.38 %
0
0.00 %
Staffs
PAR-CHR
2
436
0.26 %
4
0.92 %
419
96.10 %
19
4.36 %
13
2.98 %
0
0.00 %
PAR-CUL-N
2
263
0.16 %
6
2.28 %
214
81.37 %
43
16.35 %
43
16.35 %
0
0.00 %
PAR-CUL-P
2
426
0.25 %
11
2.58 %
402
94.37 %
17
3.99 %
13
3.05 %
0
0.00 %
PAR-OTHER
5
426
0.25 %
13
3.05 %
396
92.96 %
17
3.99 %
16
3.76 %
1
0.23 %
PAR-PERSIS
5
794
0.47 %
13
1.64 %
482
60.71 %
80
10.08 %
78
9.82 %
221
27.83 %
PAR-RECUR
38
8,438
5.02 %
264
3.13 %
7624
90.35 %
592
7.02 %
473
5.61 %
77
0.91 %
Wiltshire
PAR-CUL-N
4
312
0.19 %
20
6.41 %
267
85.58 %
27
8.65 %
25
8.01 %
0
0.00 %
PAR-CUL-P
4
727
0.43 %
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-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-OTHER
2
94
0.06 %
10
10.64 %
80
85.11 %
8
8.51 %
4
4.26 %
0
0.00 %
PAR-PERSIS
2
70
0.04 %
7
10.00 %
46
65.71 %
20
28.57 %
17
24.29 %
0
0.00 %
PAR-RECUR
22
3,389
2.02 %
138
4.07 %
2964
87.46 %
398
11.74 %
285
8.41 %
2
0.06 %
Worcs
PAR-RECUR
8
392
0.23 %
28
7.14 %
324
82.65 %
49
12.50 %
40
10.20 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
2
148
0.09 %
0
0.00 %
95
64.19 %
14
9.46 %
9
6.08 %
44
29.73 %
PAR-RECUR
2
201
0.12 %
3
1.49 %
187
93.03 %
13
6.47 %
11
5.47 %
0
0.00 %
Bucks
PAR-CUL-N
1
224
0.13 %
10
4.46 %
204
91.07 %
11
4.91 %
10
4.46 %
0
0.00 %
PAR-NEW-IN
12
1,604
0.95 %
30
1.87 %
1486
92.64 %
116
7.23 %
88
5.49 %
0
0.00 %
Cheshire
PAR-CUL-N
4
1,319
0.78 %
34
2.58 %
1223
92.72 %
76
5.76 %
62
4.70 %
0
0.00 %
PAR-CUL-P
7
1,426
0.85 %
12
0.84 %
1337
93.76 %
102
7.15 %
77
5.40 %
0
0.00 %
PAR-NEW-IN
4
555
0.33 %
18
3.24 %
499
89.91 %
42
7.57 %
38
6.85 %
0
0.00 %
PAR-OTHER
3
159
0.09 %
15
9.43 %
130
81.76 %
15
9.43 %
13
8.18 %
1
0.63 %
PAR-PERSIS
8
2,341
1.39 %
57
2.43 %
2166
92.52 %
168
7.18 %
115
4.91 %
3
0.13 %
PAR-RECUR
14
4,562
2.71 %
89
1.95 %
4256
93.29 %
261
5.72 %
216
4.73 %
1
0.02 %
Derbyshire
PAR-NEW-IN
5
550
0.33 %
14
2.55 %
483
87.82 %
57
10.36 %
51
9.27 %
2
0.36 %
PAR-RECUR
10
1,832
1.09 %
31
1.69 %
1716
93.67 %
105
5.73 %
79
4.31 %
6
0.33 %
E Sussex
PAR-NEW-IN
7
459
0.27 %
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
0.40 %
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
0.04 %
1
1.39 %
59
81.94 %
15
20.83 %
11
15.28 %
1
1.39 %
PAR-NEW-IN
21
2,518
1.50 %
115
4.57 %
2215
87.97 %
210
8.34 %
183
7.27 %
5
0.20 %
Northants
PAR-NEW-IN
17
1,466
0.87 %
28
1.91 %
1268
86.49 %
182
12.41 %
168
11.46 %
2
0.14 %
PAR-RECUR
1
114
0.07 %
1
0.88 %
93
81.58 %
11
9.65 %
20
17.54 %
0
0.00 %
Notts
PAR-CUL-N
2
451
0.27 %
9
2.00 %
422
93.57 %
31
6.87 %
19
4.21 %
1
0.22 %
PAR-NEW-IN
8
780
0.46 %
24
3.08 %
706
90.51 %
63
8.08 %
50
6.41 %
0
0.00 %
Oxon
PAR-NEW-IN
22
3,244
1.93 %
141
4.35 %
2922
90.07 %
223
6.87 %
180
5.55 %
1
0.03 %
PAR-PERSIS
2
160
0.10 %
15
9.38 %
136
85.00 %
9
5.63 %
9
5.63 %
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-RECUR
5
318
0.19 %
7
2.20 %
276
86.79 %
39
12.26 %
35
11.01 %
0
0.00 %
Warks
PAR-NEW-IN
4
176
0.10 %
13
7.39 %
145
82.39 %
22
12.50 %
18
10.23 %
0
0.00 %
PAR-RECUR
5
512
0.30 %
15
2.93 %
455
88.87 %
49
9.57 %
42
8.20 %
0
0.00 %
England - LRA
Beds
PAR-CUL-N
1
153
0.09 %
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
0.04 %
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
0.48 %
9
1.11 %
725
89.62 %
73
9.02 %
56
6.92 %
19
2.35 %
Gr Manchester
PAR-NEW-IN
7
303
0.18 %
2
0.66 %
278
91.75 %
27
8.91 %
23
7.59 %
0
0.00 %
Herts
PAR-NEW-IN
5
253
0.15 %
14
5.53 %
197
77.87 %
41
16.21 %
39
15.42 %
3
1.19 %
I of Wight
PAR-NEW-IN
1
86
0.05 %
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
1.06 %
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
14
1,060
0.63 %
19
1.79 %
971
91.60 %
95
8.96 %
68
6.42 %
2
0.19 %
Northumb
PAR-NEW-IN
1
248
0.15 %
10
4.03 %
208
83.87 %
19
7.66 %
17
6.85 %
13
5.24 %
N Yorks
PAR-NEW-IN
7
737
0.44 %
12
1.63 %
563
76.39 %
71
9.63 %
58
7.87 %
104
14.11 %
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
6
379
0.23 %
11
2.90 %
332
87.60 %
44
11.61 %
35
9.23 %
1
0.26 %
England
910
125098
74.39 %
4620
3.69 %
111504
89.13 %
10095
8.07 %
8179
6.54 %
795
0.64 %
Wales - High TB
Carms
PAR-IR-EX
7
25
0.01 %
10
40.00 %
15
60.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
32
210
0.12 %
74
35.24 %
107
50.95 %
22
10.48 %
16
7.62 %
13
6.19 %
PAR-OTHER
5
11
0.01 %
0
0.00 %
9
81.82 %
2
18.18 %
2
18.18 %
0
0.00 %
PAR-PERSIS
8
872
0.52 %
35
4.01 %
793
90.94 %
57
6.54 %
41
4.70 %
3
0.34 %
PAR-RAPID
39
139
0.08 %
41
29.50 %
81
58.27 %
13
9.35 %
11
7.91 %
6
4.32 %
PAR-RECUR
10
1,027
0.61 %
54
5.26 %
934
90.94 %
61
5.94 %
40
3.89 %
0
0.00 %
SER-FLEXI
22
2,788
1.66 %
160
5.74 %
2471
88.63 %
212
7.60 %
154
5.52 %
3
0.11 %
Ceredigion
PAR-IR-EX
9
28
0.02 %
7
25.00 %
19
67.86 %
1
3.57 %
1
3.57 %
1
3.57 %
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-IR-SEV
25
134
0.08 %
28
20.90 %
97
72.39 %
8
5.97 %
7
5.22 %
2
1.49 %
PAR-PERSIS
1
8
0.00 %
1
12.50 %
7
87.50 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
17
39
0.02 %
12
30.77 %
19
48.72 %
5
12.82 %
5
12.82 %
3
7.69 %
PAR-RECUR
2
32
0.02 %
10
31.25 %
21
65.63 %
1
3.13 %
1
3.13 %
0
0.00 %
SER-FLEXI
4
232
0.14 %
8
3.45 %
215
92.67 %
11
4.74 %
9
3.88 %
0
0.00 %
Gwent
PAR-IR-SEV
13
76
0.05 %
19
25.00 %
54
71.05 %
4
5.26 %
3
3.95 %
0
0.00 %
PAR-OTHER
9
168
0.10 %
7
4.17 %
147
87.50 %
19
11.31 %
14
8.33 %
0
0.00 %
PAR-RAPID
17
38
0.02 %
7
18.42 %
28
73.68 %
4
10.53 %
3
7.89 %
0
0.00 %
PAR-RECUR
12
397
0.24 %
12
3.02 %
359
90.43 %
35
8.82 %
23
5.79 %
3
0.76 %
SER-FLEXI
13
1,328
0.79 %
64
4.82 %
1190
89.61 %
81
6.10 %
70
5.27 %
4
0.30 %
Pembs
PAR-IR-EX
34
151
0.09 %
56
37.09 %
91
60.26 %
6
3.97 %
4
2.65 %
0
0.00 %
PAR-IR-SEV
123
865
0.51 %
186
21.50 %
644
74.45 %
35
4.05 %
28
3.24 %
7
0.81 %
PAR-NEW-IN
1
13
0.01 %
0
0.00 %
8
61.54 %
7
53.85 %
5
38.46 %
0
0.00 %
PAR-OTHER
10
195
0.12 %
21
10.77 %
159
81.54 %
15
7.69 %
15
7.69 %
0
0.00 %
PAR-PERSIS
27
1,703
1.01 %
81
4.76 %
1460
85.73 %
202
11.86 %
152
8.93 %
10
0.59 %
PAR-RAPID
109
262
0.16 %
65
24.81 %
183
69.85 %
15
5.73 %
13
4.96 %
1
0.38 %
PAR-RECUR
21
1,748
1.04 %
69
3.95 %
1574
90.05 %
118
6.75 %
96
5.49 %
9
0.51 %
SER-FLEXI
71
7,468
4.44 %
552
7.39 %
6412
85.86 %
581
7.78 %
464
6.21 %
41
0.55 %
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
13
30
0.02 %
3
10.00 %
26
86.67 %
3
10.00 %
1
3.33 %
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
0.16 %
18
6.52 %
239
86.59 %
23
8.33 %
19
6.88 %
0
0.00 %
PAR-PERSIS
4
274
0.16 %
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
35
81
0.05 %
16
19.75 %
58
71.60 %
9
11.11 %
7
8.64 %
0
0.00 %
PAR-RECUR
17
601
0.36 %
16
2.66 %
549
91.35 %
51
8.49 %
35
5.82 %
1
0.17 %
SER-FLEXI
7
221
0.13 %
7
3.17 %
197
89.14 %
20
9.05 %
15
6.79 %
2
0.90 %
S Wales
PAR-IR-SEV
3
19
0.01 %
6
31.58 %
12
63.16 %
2
10.53 %
1
5.26 %
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
18
0.01 %
7
38.89 %
10
55.56 %
1
5.56 %
1
5.56 %
0
0.00 %
PAR-RAPID
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
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
0.01 %
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
0.09 %
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
0.09 %
2
1.32 %
136
89.47 %
26
17.11 %
14
9.21 %
0
0.00 %
Mid Glamorgan
PAR-RAPID
3
6
0.00 %
1
16.67 %
3
50.00 %
2
33.33 %
2
33.33 %
0
0.00 %
NE Wales
PAR-HERD-S
1
63
0.04 %
3
4.76 %
56
88.89 %
4
6.35 %
4
6.35 %
0
0.00 %
PAR-IR-EX
11
41
0.02 %
6
14.63 %
32
78.05 %
3
7.32 %
3
7.32 %
0
0.00 %
PAR-IR-SEV
30
204
0.12 %
26
12.75 %
171
83.82 %
6
2.94 %
5
2.45 %
2
0.98 %
PAR-NEW-IN
74
6,741
4.01 %
140
2.08 %
6101
90.51 %
618
9.17 %
479
7.11 %
21
0.31 %
PAR-OTHER
4
72
0.04 %
4
5.56 %
58
80.56 %
18
25.00 %
10
13.89 %
0
0.00 %
PAR-PERSIS
12
888
0.53 %
32
3.60 %
811
91.33 %
47
5.29 %
43
4.84 %
2
0.23 %
PAR-POSTM
41
144
0.09 %
12
8.33 %
126
87.50 %
7
4.86 %
6
4.17 %
0
0.00 %
PAR-RAPID
26
52
0.03 %
11
21.15 %
41
78.85 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
12
719
0.43 %
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-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-NEW-IN
20
1,873
1.11 %
80
4.27 %
1638
87.45 %
201
10.73 %
152
8.12 %
3
0.16 %
PAR-OTHER
4
273
0.16 %
8
2.93 %
232
84.98 %
40
14.65 %
33
12.09 %
0
0.00 %
PAR-PERSIS
1
8
0.00 %
0
0.00 %
8
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
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
0.07 %
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
54
2,395
1.42 %
90
3.76 %
2005
83.72 %
338
14.11 %
296
12.36 %
4
0.17 %
PAR-OTHER
3
8
0.00 %
0
0.00 %
6
75.00 %
1
12.50 %
1
12.50 %
1
12.50 %
PAR-POSTM
32
110
0.07 %
6
5.45 %
101
91.82 %
5
4.55 %
3
2.73 %
0
0.00 %
PAR-RAPID
3
5
0.00 %
0
0.00 %
5
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-HERD-S
2
40
0.02 %
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
40
3,261
1.94 %
55
1.69 %
3028
92.85 %
237
7.27 %
167
5.12 %
11
0.34 %
PAR-OTHER
3
115
0.07 %
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
0.05 %
5
5.88 %
75
88.24 %
7
8.24 %
4
4.71 %
1
1.18 %
PAR-RAPID
4
11
0.01 %
3
27.27 %
7
63.64 %
1
9.09 %
1
9.09 %
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
0.24 %
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 %
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
%
Wales
1256
39844
23.69 %
2331
5.85 %
34694
87.07 %
3384
8.49 %
2650
6.65 %
171
0.43 %
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 %
Inverness-shire
PAR-NEW-IN
2
128
0.08 %
2
1.56 %
111
86.72 %
15
11.72 %
15
11.72 %
0
0.00 %
Kirkcudbright
PAR-NEW-IN
4
493
0.29 %
8
1.62 %
432
87.63 %
67
13.59 %
53
10.75 %
0
0.00 %
Wigtown
PAR-NEW-IN
14
2,604
1.55 %
75
2.88 %
2400
92.17 %
159
6.11 %
126
4.84 %
3
0.12 %
Scotland
22
3230
1.92 %
85
2.63 %
2948
91.27 %
241
7.46 %
194
6.01 %
3
0.09 %
Grand Total
Sum:
xx-xxxx-xxxx
7036
149146
13720
11023
969
*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 September 2022
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
76
10841
100.0%
436
4.0%
9767
90.1%
747
6.9%
583
5.4%
55
0.5%
Serial/Extended
1
1
0.0%
0
0.0 %
0
0.0 %
1 100.0%
1 100.0%
0
0.0 %
Total
77
10842
100.0%
436
4.0%
9767
90.1%
748
6.9%
584
5.4%
55
0.5%
Scotland
Parallel
8
1958
100.0%
60
3.1%
1807
92.3%
111
5.7%
88
4.5%
3
0.2%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
8
1958
100.0%
60
3.1%
1807
92.3%
111
5.7%
88
4.5%
3
0.2%
Wales
Parallel
110
2538
69.8%
111
4.4%
2228
87.8%
286
11.3%
198
7.8%
2
0.1%
Serial/Extended
10
1096
30.2%
65
5.9%
971
88.6%
78
7.1%
60
5.5%
0
0.0 %
Total
120
3634
100.0%
176
4.8%
3199
88.0%
364
10.0%
258
7.1%
2
0.1%
GB
Parallel
194
15337
93.3%
607
4.0%
13802
90.0%
1144
7.5%
869
5.7%
60
0.4%
Serial/Extended
11
1097
6.7%
65
5.9%
971
88.5%
79
7.2%
61
5.6%
0
0.0 %
Total
205
xx-xxxx-xxxx
100.0%
672
4.1%
14773
89.9%
1223
7.4%
930
5.7%
60
0.4%
77.00
120.00
8.00
* 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
901 124845
99.8%
4600
3.7% 111292
89.1%
10075
8.1%
8162
6.5%
791
0.6%
Serial/Extended
9
253
0.2%
20
7.9%
212
83.8%
20
7.9%
17
6.7%
4
1.6%
Total
910 125098
100.0%
4620
3.7% 111504
89.1%
10095
8.1%
8179
6.5%
795
0.6%
Scotland
Parallel
20
3225
99.8%
85
2.6%
2943
91.3%
241
7.5%
194
6.0%
3
0.1%
Serial/Extended
2
5
0.2%
0
0.0 %
5 100.0%
0
0.0 %
0
0.0 %
0
0.0 %
Total
22
3230
100.0%
85
2.6%
2948
91.3%
241
7.5%
194
6.0%
3
0.1%
Wales
Parallel
1119
26395
66.2%
1442
5.5%
22990
87.1%
2371
9.0%
1853
7.0%
111
0.4%
Serial/Extended
137
13449
33.8%
889
6.6%
11704
87.0%
1013
7.5%
797
5.9%
60
0.4%
Total
1256
39844
100.0%
2331
5.9%
34694
87.1%
3384
8.5%
2650
6.7%
171
0.4%
GB
Parallel
xx-xxxx-xxxx
91.8%
6127
4.0% 137225
88.8%
12687
8.2%
10209
6.6%
905
0.6%
Serial/Extended
148
13707
8.2%
909
6.6%
11921
87.0%
1033
7.5%
814
5.9%
64
0.5%
Total
xx-xxxx-xxxx
100.0%
7036
4.2% 149146
88.7%
13720
8.2%
11023
6.6%
969
0.6%
910.00
#######
22.00
* 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
11
1097
6.7%
65
5.9%
971
88.5%
79
7.2 %
61
5.6 %
0
Parallel - Herd or Group Slaughter
2
190
1.2%
23
12.1%
159
83.7%
11
5.8 %
8
4.2 %
0
Parallel - IRs in Exit Strategy for persistent her
7
14
0.1%
4
28.6%
9
64.3%
1
7.1 %
1
7.1 %
0
Parallel New Infection
51
5059
30.8%
125
2.5%
4666
92.2%
362
7.2 %
260
5.1 %
8
0.2 %
Parallel - new infection cull area
2
200
1.2%
9
4.5%
165
82.5%
23
11.5 %
20
10.0 %
6
3.0 %
Parallel - Other
4
176
1.1%
13
7.4%
139
79.0%
33
18.8 %
23
13.1 %
1
0.6 %
Parallel Persistent Infection
13
474
2.9%
6
1.3%
406
85.7%
71
15.0 %
62
13.1 %
0
Parallel - persistent infection cull area
2
328
2.0%
9
2.7%
309
94.2%
10
3.0 %
10
3.0 %
0
Parallel – post-mvt test coupled with IDEXX an
4
5
0.0%
0
0.0 %
4
80.0%
1
20.0 %
1
20.0 %
0
Parallel - Rapid Testing Two-times IRs
21
46
0.3%
11
23.9%
34
73.9%
3
6.5 %
1
2.2 %
0
Parallel - Recurrent breakdowns
59
8640
52.6%
367
4.2%
7755
89.8%
618
7.2 %
474
5.5 %
45
0.5 %
Parallel - severe IRs - in persistent herds
29
205
1.2%
40
19.5%
156
76.1%
11
5.4 %
9
4.4 %
0
Total
205
xx-xxxx-xxxx
100.0%
672
4.1%
14773
89.9%
1223
7.4 %
930
5.7 %
60
0.4 %
Table 4a. Summaryof IFN Gamma results by submission reason (September 2022)
England - HRA
Extended Flexible IFN-GAMMA test
1
1
0.0%
0
0.0 %
0
0.0 %
1
100.0 %
1
100.0 %
0
Parallel - Herd or Group Slaughter
1
127
0.8%
20
15.7%
103
81.1%
7
5.5 %
4
3.1 %
0
Parallel - new infection cull area
2
200
1.2%
9
4.5%
165
82.5%
23
11.5 %
20
10.0 %
6
3.0 %
Parallel Persistent Infection
2
326
2.0%
4
1.2%
296
90.8%
28
8.6 %
26
8.0 %
0
Parallel - persistent infection cull area
1
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Parallel - Recurrent breakdowns
53
8206
49.9%
355
4.3%
7361
89.7%
565
6.9 %
445
5.4 %
45
0.5 %
England - HRA
60
8862
53.9%
388
4.4%
7927
89.4%
624
7.0 %
496
5.6 %
51
0.6 %
England - Edge
Parallel New Infection
6
1006
6.1%
16
1.6%
952
94.6%
53
5.3 %
37
3.7 %
1
0.1 %
Parallel - Other
1
73
0.4%
12
16.4%
55
75.3%
6
8.2 %
5
6.8 %
1
1.4 %
Parallel - persistent infection cull area
1
326
2.0%
9
2.8%
307
94.2%
10
3.1 %
10
3.1 %
0
Parallel - Recurrent breakdowns
2
86
0.5%
2
2.3%
74
86.0%
12
14.0 %
10
11.6 %
0
England - Edge
10
1491
9.1%
39
2.6%
1388
93.1%
81
5.4 %
62
4.2 %
2
0.1 %
England - LRA
Parallel New Infection
7
489
3.0%
9
1.8%
452
92.4%
43
8.8 %
26
5.3 %
2
0.4 %
England - LRA
7
489
3.0%
9
1.8%
452
92.4%
43
8.8 %
26
5.3 %
2
0.4 %
Wales - High TB
Extended Flexible IFN-GAMMA test
10
1096
6.7%
65
5.9%
971
88.6%
78
7.1 %
60
5.5 %
0
Parallel - IRs in Exit Strategy for persistent her
7
14
0.1%
4
28.6%
9
64.3%
1
7.1 %
1
7.1 %
0
Parallel - Other
1
16
0.1%
1
6.3%
12
75.0%
3
18.8 %
3
18.8 %
0
Parallel Persistent Infection
5
128
0.8%
1
0.8%
99
77.3%
34
26.6 %
28
21.9 %
0
Parallel - Rapid Testing Two-times IRs
16
36
0.2%
9
25.0%
26
72.2%
3
8.3 %
1
2.8 %
0
Parallel - Recurrent breakdowns
4
348
2.1%
10
2.9%
320
92.0%
41
11.8 %
19
5.5 %
0
Parallel - severe IRs - in persistent herds
24
197
1.2%
39
19.8%
150
76.1%
10
5.1 %
8
4.1 %
0
Wales - High TB
67
1835
11.2%
129
7.0%
1587
86.5%
170
9.3 %
120
6.5 %
0
Wales - Intermediate TB
Parallel - Herd or Group Slaughter
1
63
0.4%
3
4.8%
56
88.9%
4
6.3 %
4
6.3 %
0
Parallel New Infection
14
1068
6.5%
37
3.5%
963
90.2%
92
8.6 %
67
6.3 %
1
0.1 %
Parallel - Other
2
87
0.5%
0
0.0 %
72
82.8%
24
27.6 %
15
17.2 %
0
Parallel Persistent Infection
6
20
0.1%
1
5.0%
11
55.0%
9
45.0 %
8
40.0 %
0
Parallel – post-mvt test coupled with IDEXX an
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Parallel - Rapid Testing Two-times IRs
3
6
0.0%
1
16.7%
5
83.3%
0
0
0
Parallel - severe IRs - in persistent herds
5
8
0.0%
1
12.5%
6
75.0%
1
12.5 %
1
12.5 %
0
Wales - Intermediate TB
32
1253
7.6%
43
3.4%
1114
88.9%
130
10.4 %
95
7.6 %
1
0.1 %
Wales - Low TB
Parallel New Infection
16
538
3.3%
3
0.6%
492
91.4%
63
11.7 %
42
7.8 %
1
0.2 %
Parallel – post-mvt test coupled with IDEXX an
3
4
0.0%
0
0.0 %
3
75.0%
1
25.0 %
1
25.0 %
0
Parallel - Rapid Testing Two-times IRs
2
4
0.0%
1
25.0%
3
75.0%
0
0
0
Wales - Low TB
21
546
3.3%
4
0.7%
498
91.2%
64
11.7 %
43
7.9 %
1
0.2 %
Scotland - Scotland
Parallel New Infection
8
1958
11.9%
60
3.1%
1807
92.3%
111
5.7 %
88
4.5 %
3
0.2 %
Scotland - Scotland
8
1958
11.9%
60
3.1%
1807
92.3%
111
5.7 %
88
4.5 %
3
0.2 %

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
145
13701
8.1%
909
6.6%
11915
87.0%
1033
7.5 %
814
5.9 %
64
0.5 %
Parallel – chronic breakdown
20
2621
1.6%
86
3.3%
2368
90.3%
200
7.6 %
167
6.4 %
0
Parallel - Herd or Group Slaughter
9
463
0.3%
71
15.3%
359
77.5%
52
11.2 %
33
7.1 %
0
Parallel - IRs in Exit Strategy for persistent herds
82
294
0.2%
83
28.2%
199
67.7%
15
5.1 %
11
3.7 %
1
0.3 %
Parallel New Infection
388
36001
21.4%
998
2.8%
32136
89.3%
3238
9.0 %
2609
7.2 %
258
0.7 %
Parallel - new infection cull area
61
8085
4.8%
374
4.6%
7135
88.2%
658
8.1 %
559
6.9 %
17
0.2 %
Parallel - Other
87
3042
1.8%
183
6.0%
2632
86.5%
281
9.2 %
222
7.3 %
5
0.2 %
Parallel Persistent Infection
123
14942
8.9%
574
3.8%
13084
87.6%
1286
8.6 %
1039
7.0 %
245
1.6 %
Parallel - persistent infection cull area
31
5574
3.3%
210
3.8%
4980
89.3%
445
8.0 %
362
6.5 %
22
0.4 %
Parallel – post-mvt test coupled with IDEXX anti
126
360
0.2%
24
6.7%
320
88.9%
21
5.8 %
14
3.9 %
2
0.6 %
Parallel - Rapid Testing Two-times IRs
273
674
0.4%
173
25.7%
449
66.6%
49
7.3 %
42
6.2 %
10
1.5 %
Parallel - Recurrent breakdowns
581
80790
48.0%
2995
3.7%
72403
89.6%
6346
7.9 %
5076
6.3 %
317
0.4 %
Parallel - severe IRs - in persistent herds
259
1619
1.0%
356
22.0%
1160
71.6%
96
5.9 %
75
4.6 %
28
1.7 %
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
xx-xxxx-xxxx
100.0%
7036
4.2%
149146
88.7%
13720
8.2 %
11023
6.6 %
969
0.6 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2022)
England - HRA
Extended Flexible IFN-GAMMA test
8
252
0.1%
20
7.9%
211
83.7%
20
7.9 %
17
6.7 %
4
1.6 %
Parallel – chronic breakdown
20
2621
1.6%
86
3.3%
2368
90.3%
200
7.6 %
167
6.4 %
0
Parallel - Herd or Group Slaughter
4
357
0.2%
63
17.6%
273
76.5%
40
11.2 %
21
5.9 %
0
Parallel New Infection
4
389
0.2%
25
6.4%
329
84.6%
48
12.3 %
35
9.0 %
0
Parallel - new infection cull area
49
5847
3.5%
315
5.4%
5087
87.0%
494
8.4 %
431
7.4 %
14
0.2 %
Parallel - Other
29
xx-xxxx-xxxx
1.0%
90
5.3%
1514
89.2%
120
7.1 %
93
5.5 %
1
0.1 %
Parallel Persistent Infection
54
8649
5.1%
342
4.0%
7424
85.8%
778
9.0 %
656
7.6 %
227
2.6 %
Parallel - persistent infection cull area
23
4076
2.4%
197
4.8%
3584
87.9%
328
8.0 %
274
6.7 %
21
0.5 %
Parallel - Recurrent breakdowns
473
69169
41.1%
2654
3.8%
61770
89.3%
5568
8.0 %
4448
6.4 %
297
0.4 %
England - Edge
Parallel New Infection
109
12170
7.2%
414
3.4%
10814
88.9%
1042
8.6 %
875
7.2 %
67
0.6 %
Parallel - new infection cull area
11
2085
1.2%
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
3
159
0.1%
15
9.4%
130
81.8%
15
9.4 %
13
8.2 %
1
0.6 %
Parallel Persistent Infection
10
2501
1.5%
72
2.9%
2302
92.0%
177
7.1 %
124
5.0 %
3
0.1 %
Parallel - persistent infection cull area
8
1498
0.9%
13
0.9%
1396
93.2%
117
7.8 %
88
5.9 %
1
0.1 %
Parallel - Recurrent breakdowns
37
7539
4.5%
146
1.9%
6983
92.6%
478
6.3 %
403
5.3 %
7
0.1 %
England - LRA
Parallel New Infection
66
5934
3.5%
109
1.8%
5270
88.8%
506
8.5 %
406
6.8 %
149
2.5 %
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
910 125098
74.4%
4620
3.7%
111504
89.1%
10095
8.1 %
8179
6.5 %
795
0.6 %
Wales - High TB
Extended Flexible IFN-GAMMA test
117
12037
7.2%
791
6.6%
10485
87.1%
905
7.5 %
712
5.9 %
50
0.4 %
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
63
234
0.1%
76
32.5%
151
64.5%
10
4.3 %
6
2.6 %
1
0.4 %
Parallel New Infection
1
13
0.0%
0
0.0 %
8
61.5%
7
53.8 %
5
38.5 %
0
Parallel - Other
35
685
0.4%
54
7.9%
579
84.5%
61
8.9 %
52
7.6 %
0
Parallel Persistent Infection
42
2875
1.7%
126
4.4%
2522
87.7%
282
9.8 %
214
7.4 %
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
220
562
0.3%
142
25.3%
371
66.0%
46
8.2 %
39
6.9 %
10
1.8 %
Parallel - Recurrent breakdowns
64
3850
2.3%
165
4.3%
3474
90.2%
270
7.0 %
199
5.2 %
13
0.3 %
Parallel - severe IRs - in persistent herds
218
1382
0.8%
324
23.4%
968
70.0%
87
6.3 %
68
4.9 %
22
1.6 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
17
1016
0.6%
58
5.7%
897
88.3%
68
6.7 %
51
5.0 %
10
1.0 %
Parallel - Herd or Group Slaughter
1
63
0.0%
3
4.8%
56
88.9%
4
6.3 %
4
6.3 %
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
94
8614
5.1%
220
2.6%
7739
89.8%
819
9.5 %
631
7.3 %
24
0.3 %
Parallel - Other
14
377
0.2%
15
4.0%
310
82.2%
65
17.2 %
50
13.3 %
2
0.5 %
Parallel Persistent Infection
16
912
0.5%
32
3.5%
833
91.3%
49
5.4 %
45
4.9 %
2
0.2 %
Parallel – post-mvt test coupled with IDEXX ant
46
163
0.1%
13
8.0%
142
87.1%
9
5.5 %
7
4.3 %
1
0.6 %
Parallel - Rapid Testing Two-times IRs
46
96
0.1%
28
29.2%
66
68.8%
2
2.1 %
2
2.1 %
0
Parallel - Recurrent breakdowns
6
231
0.1%
29
12.6%
176
76.2%
30
13.0 %
26
11.3 %
0
Parallel - severe IRs - in persistent herds
39
235
0.1%
32
13.6%
190
80.9%
9
3.8 %
7
3.0 %
6
2.6 %
Wales - Low TB
Extended Flexible IFN-GAMMA test
3
396
0.2%
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
94
5656
3.4%
145
2.6%
5033
89.0%
575
10.2 %
463
8.2 %
15
0.3 %
Parallel - Other
6
123
0.1%
9
7.3%
99
80.5%
20
16.3 %
14
11.4 %
1
0.8 %

Table 4b. Summary of IFN Gamma results by submission reason (Total 2022) Cont.
Parallel Persistent Infection
1
5
0.0%
2
40.0%
3
60.0%
0
0
0
Parallel – post-mvt test coupled with IDEXX ant
79
195
0.1%
11
5.6%
176
90.3%
12
6.2 %
7
3.6 %
1
0.5 %
Parallel - Rapid Testing Two-times IRs
7
16
0.0%
3
18.8%
12
75.0%
1
6.3 %
1
6.3 %
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
1256
39844
23.7%
2331
5.9%
34694
87.1%
3384
8.5 %
2650
6.7 %
171
0.4 %
Scotland - Scotland
Parallel New Infection
20
3225
1.9%
85
2.6%
2943
91.3%
241
7.5 %
194
6.0 %
3
0.1 %
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
22
3230
1.9%
85
2.6%
2948
91.3%
241
7.5 %
194
6.0 %
3
0.1 %

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 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
11
0
563
0
52
0
0
May
269
23949
158
918
2
19
0
0
0
0
62
3
0
9
0
778
1
43
1
0
June
213
17755
114
590
19
0
0
0
0
48
0
1
1
1
460
1
57
2
0
July
248
15402
109
485
5
0
0
0
0
46
0
4
1
1
381
25
22
0
0
August
274
19758
144
758
17
0
0
0
0
36
0
17
0
0
638
49
0
0
0
September
205
xx-xxxx-xxxx
107
672
205
250
0
0
0
0
33
0
2
0
0
81
0
0
0
0
Totals (last
12 months)
3031
226816
1661
9958
208
447
0
0
0
0
629
22
24
99
7
7835
77
501
5
0
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
1271
xx-xxxx-xxxx
854
6685
358
0
0
0
0
608
10
9
37
6
5488
0
13
0
0
Scotland
30
4087
21
99
34
0
0
0
0
2
0
1
0
0
32
1
2
0
0
Wales
1730
53021
786
3174
55
0
0
0
0
19
12
14
62
1
2315
76
486
5
0
Totals
3031
226816
1661
9958
447
0
0
0
0
629
22
24
99
7
7835
77
501
5
0
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
98
107
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
September
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
15643
672
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
September
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
September
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
20
40
60
80
100
120
140
160
180
W Yorks
Wiltshire
Wigtown
S Wales
Staffs
Somerset excl N
Shropshire
Powys
Pembs
Oxon
N Yorks
N Somer S Glos
Northants
NE Wales
Mid Glamorgan
Lincs
Inverness-shire
Heref
Gwynedd
Gwent
Gloucs
Dorset
Devon
Corn & Scilly
Cheshire
Ceredigion
Carms
Berks
Avon
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during September 2022 (% submission per
County)
County
%Resampled %Retested
Avon
5.96 %
11.66 %
Berks
7.89 %
10.53 %
Carms
9.31 %
14.48 %
Ceredigion
10.53 %
10.53 %
Cheshire
4.65 %
4.89 %
Corn & Scilly
12.15 %
11.42 %
Devon
5.91 %
7.03 %
Dorset
6.81 %
8.60 %
Gloucs
4.84 %
17.74 %
Gwent
3.36 %
6.71 %
Gwynedd
10.09 %
11.01 %
Heref
5.29 %
7.00 %
Inverness-shire
87.50 %
87.50 %
Lincs
5.50 %
9.33 %
Mid Glamorgan
NE Wales
6.97 %
10.07 %
Northants
8.96 %
10.45 %
N Somer S Glo
5.17 %
15.52 %
N Yorks
2.90 %
4.35 %
Oxon
2.36 %
3.98 %
Pembs
6.17 %
7.80 %
Powys
11.56 %
19.65 %
Shropshire
3.07 %
3.80 %
Somerset excl
2.96 %
4.09 %
Staffs
6.76 %
7.86 %
S Wales
6.25 %
12.50 %
Wigtown
4.15 %
5.33 %
Wiltshire
10.19 %
15.61 %
W Yorks
50.00 %
50.00 %

Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
10752
436
4.1%
10842
436
4.0%
Wales
3605
176
4.9%
3634
176
4.8%
Scotland
1958
60
3.1%
1958
60
3.1%
GB
16315
672
4.1%
xx-xxxx-xxxx
672
4.1%
Table 6a (i): Number of animals and submissions tested in September 2022
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
117134
4620
3.9%
125098
4620
3.7%
Wales
37319
2331
6.2%
39844
2331
5.9%
Scotland
3149
85
2.7%
3230
85
2.6%
GB
157600
7036
4.5%
xx-xxxx-xxxx
7036
4.2%
Table 6b (i): Number of animals and submissions tested in 2022 Up to end of September
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
11709
626
5.3%
11798
626
5.3%
Wales
3806
256
6.7%
3899
257
6.6%
Scotland
108
7
6.5%
108
7
6.5%
GB
15623
889
5.7%
15805
890
5.6%
Table 6a (ii): Number of animals and submissions tested in September 2021
Table 6b (ii): Number of animals and submissions tested in 2021 Up to end of September
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
172936
9270
5.4%
182959
9273
5.1%
Wales
47226
3075
6.5%
50602
3076
6.1%
Scotland
579
136
23.5%
1166
136
11.7%
GB
220731
12481
5.7%
234727
12485
5.3%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Devon
PRV-SE
1
7
0
0
East Sussex
PRV-SP
1
3
0
0
Leicestershire and Rutland
PRV-SP
2
2
0
0
Total
4
12
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 September 2022
Table 7b Number of private samples 2022
* Test type
Num
Submissions
Num
Samples
Num
Positives
Private
% Positive
Devon
PRV-SE
4
109
5
4.59 %
PRV-SP
1
2
0
0
Dorset
PRV-SP
2
3
0
0
East Sussex
PRV-SP
1
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
6
6
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
26
224
17
7.59 %

Country
County
Test Reason
Num
Submissions
Num Samples
Tested
Num Positive
Samples
% Positive
Wales
Carmarthenshire
BOV-IR-C
5
42
5
11.9%
Ceredigion
BOV-IR-C
5
41
11
26.8%
BOV-IR-EX
1
4
0
0
North East Wales
BOV-IR-C
1
4
0
0
BOV-POSTM
2
3
0
0
Pembrokeshire
BOV-IR-C
19
155
26
16.8%
BOV-IR-EX
3
15
3
20.0%
BOV-OTHER
2
106
4
3.8%
Powys
BOV-IR-C
2
60
2
3.3%
BOV-POSTM
1
1
0
0
South Wales
BOV-IR-C
4
46
5
10.9%
BOV-OTHER
1
113
3
2.7%
Wales
46
590
59
10.0%
All GB
46
590
59
10.0 %
Table 8a Number of Cattle Antibody Tests September 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
27
234
56
23.9%
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
24
196
34
17.3%
BOV-IR-EX
5
17
3
17.6%
BOV-P
2
62
6
9.7%
BOV-POSTM
1
13
4
30.8%
North East Wales
BOV-IR-C
36
300
30
10.0%
BOV-IR-EX
2
14
4
28.6%
BOV-OTHER
5
209
0
0
BOV-P
3
660
53
8.0%
BOV-POSTM
69
168
33
19.6%
North West Wales
BOV-POSTM
3
3
0
0
Pembrokeshire
BOV-IR-C
126
1,063
224
21.1%
BOV-IR-EX
22
137
39
28.5%
BOV-OTHER
13
1,462
81
5.5%
BOV-P
10
629
33
5.2%
OTHER
1
30
0
0
Powys
BOV-IR-C
20
160
23
14.4%
BOV-P
4
206
5
2.4%
BOV-POSTM
2
2
0
0
Shropshire
BOV-IR-C
1
1
0
0
South Wales
BOV-IR-C
17
153
25
16.3%
BOV-OTHER
3
143
8
5.6%
BOV-P
1
282
16
5.7%
Wales
407
6,949
695
10.0%

Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
All GB
407
6,949
695
10.0 %