Monthly report: Surveillance Project SB4008 IFNg Tests for Bovine Tuberculosis - July 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 191
Report Period 1st - 31st July 2022
Issued 10 August 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
July 2022
%
Total 2022
%
Submissions
248
1709
Samples
Total (%)
15402
100.00 %
131980
100.00 %
England
10211
66.30 %
101050
76.56 %
Wales
5191
33.70 %
29905
22.66 %
Scotland
1025
0.78 %
Parallel Tests
PAR-CHR
8
0.05 %
2277
1.73 %
PAR-CUL-N
177
1.15 %
7845
5.94 %
PAR-CUL-P
805
5.23 %
5035
3.81 %
PAR-HERD-S
7
0.05 %
111
0.08 %
PAR-IR-EX
31
0.20 %
226
0.17 %
PAR-IR-SEV
137
0.89 %
1069
0.81 %
PAR-NEW-IN
4218
27.39 %
26979
20.44 %
PAR-OTHER
131
0.85 %
2666
2.02 %
PAR-PERSIS
614
3.99 %
12258
9.29 %
PAR-POSTM
71
0.46 %
337
0.26 %
PAR-RAPID
63
0.41 %
573
0.43 %
PAR-RECUR
7598
49.33 %
61670
46.73 %
Total(% of all samples)
13860
89.99 %
121046
91.72 %
Serial/Extended Tests
SER-ANOM
0
0.00 %
SER-FLEXI
1542
10.01 %
10928
8.28 %
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)
1542
10.01 %
10934
8.28 %
Total
15402
100.00 %
131980
100.00 %
Retests
Total (% of all samples)
1434
9.31 %
10842
8.21 %
England
973
6.32 %
8274
6.27 %
Wales
461
2.99 %
2462
1.87 %
Scotland
106
0.08 %
Resamples
Total (% of all samples)
1042
6.77 %
8823
6.69 %
England
697
4.53 %
6763
5.12 %
Wales
345
2.24 %
1977
1.50 %
Scotland
83
0.06 %
Rejects
Total (% of all samples)
186
1.21 %
887
0.67 %
England
181
1.18 %
734
0.56 %
Wales
5
0.03 %
153
0.12 %
Scotland
0
0.00 %
Table 1. Monthly Totals for July 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
8
0.1 %
PAR-CUL-N
177
1.1 %
PAR-CUL-P
805
5.2 %
PAR-HERD-S
7
0.0 %
PAR-IR-EX
31
0.2 %
PAR-IR-SEV
137
0.9 %
PAR-NEW-IN
4218
27.4 %
PAR-OTHER
131
0.9 %
PAR-PERSIS
614
4.0 %
PAR-POSTM
71
0.5 %
PAR-RAPID
63
0.4 %
PAR-RECUR
7598
49.3 %
SER-FLEXI
1542
10.0 %
Total
15402
100.00 %
Figure 1. Number of samples submitted in each category during July 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
3500
4000
W Glamorgan
S Glamorgan
Powys
Pembs
NE Wales
Gwynedd
Gwent
Ceredigion
Carms
Wiltshire
Staffs
Shropshire
Oxon
Notts
Northants
Lincs
Leics & Rut
Lancashire
Heref
Hampshire
Gr Manchester
Gloucs
E Sussex
Dorset
Devon
Derbyshire
Corn & Scilly
Cheshire
Bucks
Berks
Avon
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 July 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
Wigtown
Kirkcudbright
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-CHR
1
7
0.05 %
0
0.00 %
4
57.14 %
3
42.86 %
3
42.86 %
0
0.00 %
PAR-RECUR
1
94
0.61 %
4
4.26 %
84
89.36 %
8
8.51 %
5
5.32 %
1
1.06 %
Corn & Scilly
PAR-RECUR
7
1,436
9.32 %
77
5.36 %
1245
86.70 %
158
11.00 %
111
7.73 %
3
0.21 %
Devon
PAR-CHR
1
1
0.01 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
PAR-CUL-N
6
176
1.14 %
4
2.27 %
158
89.77 %
19
10.80 %
14
7.95 %
0
0.00 %
PAR-RECUR
6
157
1.02 %
4
2.55 %
118
75.16 %
45
28.66 %
35
22.29 %
0
0.00 %
Dorset
PAR-RECUR
4
129
0.84 %
1
0.78 %
110
85.27 %
25
19.38 %
18
13.95 %
0
0.00 %
Gloucs
PAR-OTHER
1
5
0.03 %
1
20.00 %
3
60.00 %
2
40.00 %
1
20.00 %
0
0.00 %
PAR-RECUR
5
352
2.29 %
44
12.50 %
272
77.27 %
44
12.50 %
36
10.23 %
0
0.00 %
Heref
PAR-HERD-S
1
5
0.03 %
0
0.00 %
4
80.00 %
2
40.00 %
1
20.00 %
0
0.00 %
PAR-RECUR
6
386
2.51 %
10
2.59 %
220
56.99 %
36
9.33 %
29
7.51 %
127
32.90 %
Shropshire
PAR-PERSIS
1
184
1.19 %
4
2.17 %
166
90.22 %
20
10.87 %
14
7.61 %
0
0.00 %
PAR-RECUR
12
3,396
22.05 %
71
2.09 %
3166
93.23 %
218
6.42 %
154
4.53 %
5
0.15 %
Staffs
PAR-OTHER
1
12
0.08 %
0
0.00 %
8
66.67 %
4
33.33 %
4
33.33 %
0
0.00 %
PAR-RECUR
3
88
0.57 %
3
3.41 %
59
67.05 %
30
34.09 %
25
28.41 %
1
1.14 %
Wiltshire
PAR-RECUR
5
990
6.43 %
27
2.73 %
863
87.17 %
150
15.15 %
100
10.10 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
2
148
0.96 %
0
0.00 %
95
64.19 %
14
9.46 %
9
6.08 %
44
29.73 %
Bucks
PAR-NEW-IN
1
275
1.79 %
3
1.09 %
263
95.64 %
24
8.73 %
9
3.27 %
0
0.00 %
Cheshire
PAR-CUL-P
3
805
5.23 %
2
0.25 %
771
95.78 %
54
6.71 %
32
3.98 %
0
0.00 %
PAR-PERSIS
3
176
1.14 %
4
2.27 %
159
90.34 %
16
9.09 %
13
7.39 %
0
0.00 %
Derbyshire
PAR-RECUR
2
369
2.40 %
9
2.44 %
350
94.85 %
11
2.98 %
10
2.71 %
0
0.00 %
E Sussex
PAR-NEW-IN
2
34
0.22 %
2
5.88 %
29
85.29 %
4
11.76 %
3
8.82 %
0
0.00 %
Hampshire
PAR-NEW-IN
1
3
0.02 %
0
0.00 %
2
66.67 %
1
33.33 %
1
33.33 %
0
0.00 %
Leics & Rut
PAR-CUL-N
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
1
13
0.08 %
0
0.00 %
10
76.92 %
3
23.08 %
3
23.08 %
0
0.00 %
Northants
PAR-NEW-IN
2
4
0.03 %
0
0.00 %
4
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Table 2a. Summary by County for July 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 July 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Notts
PAR-NEW-IN
2
11
0.07 %
2
18.18 %
8
72.73 %
1
9.09 %
1
9.09 %
0
0.00 %
Oxon
PAR-NEW-IN
3
542
3.52 %
21
3.87 %
489
90.22 %
41
7.56 %
32
5.90 %
0
0.00 %
England - LRA
Gr Manchester
PAR-NEW-IN
2
58
0.38 %
1
1.72 %
48
82.76 %
9
15.52 %
9
15.52 %
0
0.00 %
Lancashire
PAR-NEW-IN
3
266
1.73 %
4
1.50 %
242
90.98 %
23
8.65 %
20
7.52 %
0
0.00 %
Lincs
PAR-NEW-IN
1
88
0.57 %
1
1.14 %
83
94.32 %
7
7.95 %
4
4.55 %
0
0.00 %
England
90
10211
66.30 %
299
2.93 %
9034
88.47 %
973
9.53 %
697
6.83 %
181
1.77 %
Wales - High TB
Carms
PAR-IR-EX
1
4
0.03 %
3
75.00 %
1
25.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
4
26
0.17 %
6
23.08 %
18
69.23 %
2
7.69 %
2
7.69 %
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-RAPID
7
12
0.08 %
3
25.00 %
8
66.67 %
1
8.33 %
1
8.33 %
0
0.00 %
PAR-RECUR
1
3
0.02 %
0
0.00 %
0
0.00 %
3
100.00 %
3
100.00 %
0
0.00 %
SER-FLEXI
4
954
6.19 %
42
4.40 %
859
90.04 %
86
9.01 %
53
5.56 %
0
0.00 %
Ceredigion
PAR-IR-SEV
3
13
0.08 %
2
15.38 %
11
84.62 %
1
7.69 %
0
0.00 %
0
0.00 %
PAR-PERSIS
1
8
0.05 %
1
12.50 %
7
87.50 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
4
11
0.07 %
3
27.27 %
6
54.55 %
1
9.09 %
1
9.09 %
1
9.09 %
PAR-RECUR
1
1
0.01 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
Gwent
PAR-IR-SEV
1
5
0.03 %
1
20.00 %
4
80.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
1
18
0.12 %
2
11.11 %
15
83.33 %
1
5.56 %
1
5.56 %
0
0.00 %
PAR-RAPID
2
5
0.03 %
0
0.00 %
5
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
3
57
0.37 %
0
0.00 %
55
96.49 %
2
3.51 %
2
3.51 %
0
0.00 %
SER-FLEXI
2
14
0.09 %
1
7.14 %
9
64.29 %
4
28.57 %
4
28.57 %
0
0.00 %
Pembs
PAR-IR-EX
4
7
0.05 %
2
28.57 %
5
71.43 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
10
76
0.49 %
12
15.79 %
64
84.21 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
3
50
0.32 %
2
4.00 %
42
84.00 %
6
12.00 %
6
12.00 %
0
0.00 %
PAR-PERSIS
4
238
1.55 %
10
4.20 %
213
89.50 %
29
12.18 %
14
5.88 %
1
0.42 %
PAR-RAPID
10
24
0.16 %
3
12.50 %
20
83.33 %
1
4.17 %
1
4.17 %
0
0.00 %
PAR-RECUR
2
83
0.54 %
4
4.82 %
75
90.36 %
4
4.82 %
4
4.82 %
0
0.00 %
SER-FLEXI
8
563
3.66 %
33
5.86 %
482
85.61 %
57
10.12 %
48
8.53 %
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 July 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Powys
PAR-HERD-S
1
2
0.01 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-EX
3
8
0.05 %
0
0.00 %
8
100.00 %
1
12.50 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
1
9
0.06 %
0
0.00 %
6
66.67 %
3
33.33 %
3
33.33 %
0
0.00 %
PAR-PERSIS
1
7
0.05 %
0
0.00 %
5
71.43 %
2
28.57 %
2
28.57 %
0
0.00 %
PAR-RAPID
3
7
0.05 %
1
14.29 %
6
85.71 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
4
50
0.32 %
0
0.00 %
47
94.00 %
6
12.00 %
3
6.00 %
0
0.00 %
W Glamorgan
PAR-RECUR
1
3
0.02 %
0
0.00 %
2
66.67 %
1
33.33 %
1
33.33 %
0
0.00 %
Wales - Intermediate TB
Carms
PAR-OTHER
1
15
0.10 %
0
0.00 %
9
60.00 %
6
40.00 %
6
40.00 %
0
0.00 %
PAR-PERSIS
1
1
0.01 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
Ceredigion
PAR-RECUR
1
3
0.02 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
2
11
0.07 %
0
0.00 %
7
63.64 %
4
36.36 %
4
36.36 %
0
0.00 %
NE Wales
PAR-IR-EX
2
12
0.08 %
0
0.00 %
11
91.67 %
1
8.33 %
1
8.33 %
0
0.00 %
PAR-IR-SEV
3
6
0.04 %
0
0.00 %
6
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
11
822
5.34 %
16
1.95 %
717
87.23 %
113
13.75 %
87
10.58 %
2
0.24 %
PAR-POSTM
6
30
0.19 %
2
6.67 %
27
90.00 %
1
3.33 %
1
3.33 %
0
0.00 %
PAR-RAPID
2
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Powys
PAR-IR-SEV
1
2
0.01 %
0
0.00 %
2
100.00 %
1
50.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
2
646
4.19 %
12
1.86 %
614
95.05 %
25
3.87 %
20
3.10 %
0
0.00 %
PAR-POSTM
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
S Glamorgan
PAR-RAPID
2
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-NEW-IN
4
158
1.03 %
4
2.53 %
145
91.77 %
9
5.70 %
9
5.70 %
0
0.00 %
PAR-OTHER
2
6
0.04 %
0
0.00 %
5
83.33 %
1
16.67 %
1
16.67 %
0
0.00 %
PAR-POSTM
5
31
0.20 %
2
6.45 %
29
93.55 %
2
6.45 %
0
0.00 %
0
0.00 %
NE Wales
PAR-NEW-IN
12
1,150
7.47 %
16
1.39 %
1078
93.74 %
73
6.35 %
55
4.78 %
1
0.09 %
PAR-OTHER
2
24
0.16 %
0
0.00 %
15
62.50 %
10
41.67 %
9
37.50 %
0
0.00 %
PAR-POSTM
6
8
0.05 %
1
12.50 %
6
75.00 %
2
25.00 %
1
12.50 %
0
0.00 %
PAR-RECUR
1
1
0.01 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales
158
5191
33.70 %
186
3.58 %
4655
89.67 %
461
8.88 %
345
6.65 %
5
0.10 %
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 July 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Grand Total
Sum:
248
15402
485
13689
1434
1042
186
*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
0.19 %
22
8.56 %
212
82.49 %
27
10.51 %
23
8.95 %
0
0.00 %
PAR-CUL-N
3
527
0.40 %
26
4.93 %
485
92.03 %
16
3.04 %
15
2.85 %
1
0.19 %
PAR-CUL-P
2
222
0.17 %
20
9.01 %
173
77.93 %
37
16.67 %
29
13.06 %
0
0.00 %
PAR-PERSIS
2
343
0.26 %
20
5.83 %
301
87.76 %
26
7.58 %
22
6.41 %
0
0.00 %
PAR-RECUR
14
1,419
1.08 %
63
4.44 %
1257
88.58 %
111
7.82 %
92
6.48 %
7
0.49 %
Corn & Scilly
PAR-CHR
2
197
0.15 %
9
4.57 %
166
84.26 %
22
11.17 %
22
11.17 %
0
0.00 %
PAR-CUL-N
7
595
0.45 %
54
9.08 %
520
87.39 %
32
5.38 %
21
3.53 %
0
0.00 %
PAR-CUL-P
5
684
0.52 %
27
3.95 %
609
89.04 %
54
7.89 %
48
7.02 %
0
0.00 %
PAR-OTHER
1
102
0.08 %
1
0.98 %
98
96.08 %
4
3.92 %
3
2.94 %
0
0.00 %
PAR-PERSIS
10
1,862
1.41 %
73
3.92 %
1656
88.94 %
160
8.59 %
133
7.14 %
0
0.00 %
PAR-RECUR
52
7,938
6.01 %
360
4.54 %
6886
86.75 %
839
10.57 %
686
8.64 %
6
0.08 %
Devon
PAR-CHR
4
152
0.12 %
1
0.66 %
141
92.76 %
13
8.55 %
10
6.58 %
0
0.00 %
PAR-CUL-N
15
1,638
1.24 %
107
6.53 %
1380
84.25 %
171
10.44 %
150
9.16 %
1
0.06 %
PAR-CUL-P
6
1,195
0.91 %
47
3.93 %
1049
87.78 %
114
9.54 %
94
7.87 %
5
0.42 %
PAR-PERSIS
11
1,606
1.22 %
76
4.73 %
1409
87.73 %
150
9.34 %
121
7.53 %
0
0.00 %
PAR-RECUR
77
9,915
7.51 %
489
4.93 %
8629
87.03 %
942
9.50 %
781
7.88 %
16
0.16 %
SER-FLEXI
2
145
0.11 %
4
2.76 %
128
88.28 %
11
7.59 %
9
6.21 %
4
2.76 %
Dorset
PAR-CUL-N
5
1,423
1.08 %
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
1.09 %
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
0.24 %
23
7.19 %
247
77.19 %
51
15.94 %
47
14.69 %
3
0.94 %
PAR-CUL-P
1
195
0.15 %
7
3.59 %
170
87.18 %
17
8.72 %
17
8.72 %
1
0.51 %
PAR-OTHER
2
64
0.05 %
2
3.13 %
56
87.50 %
7
10.94 %
6
9.38 %
0
0.00 %
PAR-RECUR
28
3,523
2.67 %
147
4.17 %
3149
89.38 %
267
7.58 %
223
6.33 %
4
0.11 %
Heref
PAR-CUL-P
2
625
0.47 %
32
5.12 %
570
91.20 %
35
5.60 %
23
3.68 %
0
0.00 %
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-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
0.41 %
32
5.87 %
488
89.54 %
42
7.71 %
25
4.59 %
0
0.00 %
PAR-PERSIS
9
1,132
0.86 %
61
5.39 %
975
86.13 %
104
9.19 %
93
8.22 %
3
0.27 %
PAR-RECUR
41
5,767
4.37 %
207
3.59 %
5126
88.89 %
388
6.73 %
305
5.29 %
129
2.24 %
Shropshire
PAR-CHR
6
1,235
0.94 %
45
3.64 %
1125
91.09 %
81
6.56 %
65
5.26 %
0
0.00 %
PAR-NEW-IN
2
293
0.22 %
22
7.51 %
252
86.01 %
27
9.22 %
19
6.48 %
0
0.00 %
PAR-OTHER
3
246
0.19 %
4
1.63 %
221
89.84 %
22
8.94 %
21
8.54 %
0
0.00 %
PAR-PERSIS
10
2,064
1.56 %
77
3.73 %
1840
89.15 %
185
8.96 %
147
7.12 %
0
0.00 %
PAR-RECUR
56
9,505
7.20 %
214
2.25 %
8763
92.19 %
642
6.75 %
522
5.49 %
6
0.06 %
Somerset excl N
PAR-CUL-N
2
529
0.40 %
12
2.27 %
492
93.01 %
29
5.48 %
25
4.73 %
0
0.00 %
PAR-OTHER
3
87
0.07 %
15
17.24 %
65
74.71 %
8
9.20 %
7
8.05 %
0
0.00 %
PAR-PERSIS
3
239
0.18 %
4
1.67 %
215
89.96 %
24
10.04 %
20
8.37 %
0
0.00 %
PAR-RECUR
32
4,027
3.05 %
202
5.02 %
3602
89.45 %
288
7.15 %
216
5.36 %
7
0.17 %
SER-FLEXI
2
27
0.02 %
5
18.52 %
19
70.37 %
4
14.81 %
3
11.11 %
0
0.00 %
Staffs
PAR-CHR
2
436
0.33 %
4
0.92 %
419
96.10 %
19
4.36 %
13
2.98 %
0
0.00 %
PAR-CUL-N
2
263
0.20 %
6
2.28 %
214
81.37 %
43
16.35 %
43
16.35 %
0
0.00 %
PAR-CUL-P
1
425
0.32 %
11
2.59 %
401
94.35 %
17
4.00 %
13
3.06 %
0
0.00 %
PAR-OTHER
5
426
0.32 %
13
3.05 %
396
92.96 %
17
3.99 %
16
3.76 %
1
0.23 %
PAR-PERSIS
4
739
0.56 %
13
1.76 %
442
59.81 %
63
8.53 %
63
8.53 %
221
29.91 %
PAR-RECUR
25
4,798
3.64 %
128
2.67 %
4318
90.00 %
353
7.36 %
277
5.77 %
75
1.56 %
Wiltshire
PAR-CUL-N
4
312
0.24 %
20
6.41 %
267
85.58 %
27
8.65 %
25
8.01 %
0
0.00 %
PAR-CUL-P
4
727
0.55 %
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
0.07 %
10
10.64 %
80
85.11 %
8
8.51 %
4
4.26 %
0
0.00 %
PAR-PERSIS
2
70
0.05 %
7
10.00 %
46
65.71 %
20
28.57 %
17
24.29 %
0
0.00 %
PAR-RECUR
15
2,630
1.99 %
99
3.76 %
2321
88.25 %
291
11.06 %
208
7.91 %
2
0.08 %
Worcs
PAR-RECUR
7
370
0.28 %
26
7.03 %
313
84.59 %
40
10.81 %
31
8.38 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
2
148
0.11 %
0
0.00 %
95
64.19 %
14
9.46 %
9
6.08 %
44
29.73 %
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
1
125
0.09 %
2
1.60 %
118
94.40 %
5
4.00 %
5
4.00 %
0
0.00 %
Bucks
PAR-CUL-N
1
224
0.17 %
10
4.46 %
204
91.07 %
11
4.91 %
10
4.46 %
0
0.00 %
PAR-NEW-IN
8
1,443
1.09 %
27
1.87 %
1347
93.35 %
94
6.51 %
69
4.78 %
0
0.00 %
Cheshire
PAR-CUL-N
4
1,319
1.00 %
34
2.58 %
1223
92.72 %
76
5.76 %
62
4.70 %
0
0.00 %
PAR-CUL-P
5
890
0.67 %
2
0.22 %
827
92.92 %
83
9.33 %
61
6.85 %
0
0.00 %
PAR-NEW-IN
4
555
0.42 %
18
3.24 %
499
89.91 %
42
7.57 %
38
6.85 %
0
0.00 %
PAR-OTHER
2
86
0.07 %
3
3.49 %
75
87.21 %
9
10.47 %
8
9.30 %
0
0.00 %
PAR-PERSIS
8
2,341
1.77 %
57
2.43 %
2166
92.52 %
168
7.18 %
115
4.91 %
3
0.13 %
PAR-RECUR
12
4,551
3.45 %
88
1.93 %
4250
93.39 %
257
5.65 %
212
4.66 %
1
0.02 %
Derbyshire
PAR-NEW-IN
5
550
0.42 %
14
2.55 %
483
87.82 %
57
10.36 %
51
9.27 %
2
0.36 %
PAR-RECUR
9
1,512
1.15 %
28
1.85 %
1411
93.32 %
82
5.42 %
67
4.43 %
6
0.40 %
E Sussex
PAR-NEW-IN
7
459
0.35 %
10
2.18 %
394
85.84 %
61
13.29 %
45
9.80 %
10
2.18 %
Hampshire
PAR-CUL-N
2
60
0.05 %
2
3.33 %
46
76.67 %
12
20.00 %
12
20.00 %
0
0.00 %
PAR-NEW-IN
7
670
0.51 %
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
18
2,122
1.61 %
71
3.35 %
1882
88.69 %
187
8.81 %
165
7.78 %
4
0.19 %
Northants
PAR-NEW-IN
13
1,189
0.90 %
25
2.10 %
1026
86.29 %
146
12.28 %
136
11.44 %
2
0.17 %
PAR-RECUR
1
114
0.09 %
1
0.88 %
93
81.58 %
11
9.65 %
20
17.54 %
0
0.00 %
Notts
PAR-CUL-N
2
451
0.34 %
9
2.00 %
422
93.57 %
31
6.87 %
19
4.21 %
1
0.22 %
PAR-NEW-IN
8
780
0.59 %
24
3.08 %
706
90.51 %
63
8.08 %
50
6.41 %
0
0.00 %
Oxon
PAR-NEW-IN
19
2,439
1.85 %
127
5.21 %
2151
88.19 %
191
7.83 %
161
6.60 %
0
0.00 %
PAR-PERSIS
2
160
0.12 %
15
9.38 %
136
85.00 %
9
5.63 %
9
5.63 %
0
0.00 %
PAR-RECUR
3
271
0.21 %
7
2.58 %
241
88.93 %
26
9.59 %
23
8.49 %
0
0.00 %
Warks
PAR-NEW-IN
2
11
0.01 %
0
0.00 %
9
81.82 %
2
18.18 %
2
18.18 %
0
0.00 %
PAR-RECUR
4
360
0.27 %
10
2.78 %
317
88.06 %
37
10.28 %
33
9.17 %
0
0.00 %
England - LRA
Beds
PAR-CUL-N
1
153
0.12 %
1
0.65 %
126
82.35 %
32
20.92 %
24
15.69 %
2
1.31 %
PAR-NEW-IN
2
94
0.07 %
1
1.06 %
89
94.68 %
3
3.19 %
3
3.19 %
1
1.06 %
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
%
Cambs
PAR-NEW-IN
2
73
0.06 %
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
5
394
0.30 %
5
1.27 %
340
86.29 %
35
8.88 %
31
7.87 %
18
4.57 %
Gr Manchester
PAR-NEW-IN
7
303
0.23 %
2
0.66 %
278
91.75 %
27
8.91 %
23
7.59 %
0
0.00 %
Herts
PAR-NEW-IN
5
253
0.19 %
14
5.53 %
197
77.87 %
41
16.21 %
39
15.42 %
3
1.19 %
I of Wight
PAR-NEW-IN
1
86
0.07 %
1
1.16 %
80
93.02 %
7
8.14 %
5
5.81 %
0
0.00 %
Kent
PAR-NEW-IN
1
63
0.05 %
2
3.17 %
56
88.89 %
5
7.94 %
5
7.94 %
0
0.00 %
Lancashire
PAR-NEW-IN
9
1,783
1.35 %
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
6
268
0.20 %
5
1.87 %
249
92.91 %
19
7.09 %
14
5.22 %
0
0.00 %
Northumb
PAR-NEW-IN
1
248
0.19 %
10
4.03 %
208
83.87 %
19
7.66 %
17
6.85 %
13
5.24 %
N Yorks
PAR-NEW-IN
4
416
0.32 %
9
2.16 %
275
66.11 %
33
7.93 %
28
6.73 %
104
25.00 %
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
4
362
0.27 %
10
2.76 %
319
88.12 %
42
11.60 %
33
9.12 %
0
0.00 %
England
734
101050
76.56 %
3742
3.70 %
89811
88.88 %
8274
8.19 %
6763
6.69 %
734
0.73 %
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
25
157
0.12 %
56
35.67 %
76
48.41 %
17
10.83 %
12
7.64 %
13
8.28 %
PAR-OTHER
5
11
0.01 %
0
0.00 %
9
81.82 %
2
18.18 %
2
18.18 %
0
0.00 %
PAR-RAPID
36
135
0.10 %
39
28.89 %
80
59.26 %
12
8.89 %
10
7.41 %
6
4.44 %
PAR-RECUR
7
617
0.47 %
34
5.51 %
560
90.76 %
30
4.86 %
23
3.73 %
0
0.00 %
SER-FLEXI
17
2,690
2.04 %
153
5.69 %
2386
88.70 %
203
7.55 %
148
5.50 %
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
0.07 %
21
21.65 %
69
71.13 %
6
6.19 %
5
5.15 %
2
2.06 %
PAR-PERSIS
1
8
0.01 %
1
12.50 %
7
87.50 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
13
26
0.02 %
8
30.77 %
13
50.00 %
2
7.69 %
2
7.69 %
3
11.54 %
PAR-RECUR
2
32
0.02 %
10
31.25 %
21
65.63 %
1
3.13 %
1
3.13 %
0
0.00 %
SER-FLEXI
2
51
0.04 %
2
3.92 %
47
92.16 %
3
5.88 %
2
3.92 %
0
0.00 %
Gwent
PAR-IR-SEV
8
31
0.02 %
6
19.35 %
22
70.97 %
3
9.68 %
3
9.68 %
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
7
165
0.13 %
7
4.24 %
144
87.27 %
19
11.52 %
14
8.48 %
0
0.00 %
PAR-RAPID
12
31
0.02 %
6
19.35 %
22
70.97 %
3
9.68 %
3
9.68 %
0
0.00 %
PAR-RECUR
7
220
0.17 %
6
2.73 %
204
92.73 %
18
8.18 %
8
3.64 %
2
0.91 %
SER-FLEXI
11
1,211
0.92 %
62
5.12 %
1079
89.10 %
73
6.03 %
66
5.45 %
4
0.33 %
Pembs
PAR-IR-EX
24
106
0.08 %
38
35.85 %
65
61.32 %
4
3.77 %
3
2.83 %
0
0.00 %
PAR-IR-SEV
94
598
0.45 %
143
23.91 %
429
71.74 %
25
4.18 %
20
3.34 %
6
1.00 %
PAR-OTHER
8
170
0.13 %
20
11.76 %
138
81.18 %
12
7.06 %
12
7.06 %
0
0.00 %
PAR-PERSIS
20
1,196
0.91 %
74
6.19 %
999
83.53 %
152
12.71 %
113
9.45 %
10
0.84 %
PAR-RAPID
89
221
0.17 %
58
26.24 %
151
68.33 %
13
5.88 %
11
4.98 %
1
0.45 %
PAR-RECUR
20
1,745
1.32 %
69
3.95 %
1572
90.09 %
117
6.70 %
95
5.44 %
9
0.52 %
SER-FLEXI
56
5,325
4.03 %
446
8.38 %
4495
84.41 %
437
8.21 %
344
6.46 %
41
0.77 %
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
7
15
0.01 %
2
13.33 %
13
86.67 %
1
6.67 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
17
68
0.05 %
11
16.18 %
46
67.65 %
12
17.65 %
11
16.18 %
0
0.00 %
PAR-OTHER
7
253
0.19 %
9
3.56 %
225
88.93 %
23
9.09 %
19
7.51 %
0
0.00 %
PAR-PERSIS
4
274
0.21 %
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
29
71
0.05 %
15
21.13 %
49
69.01 %
8
11.27 %
7
9.86 %
0
0.00 %
PAR-RECUR
15
515
0.39 %
16
3.11 %
469
91.07 %
37
7.18 %
29
5.63 %
1
0.19 %
SER-FLEXI
5
175
0.13 %
5
2.86 %
154
88.00 %
17
9.71 %
15
8.57 %
1
0.57 %
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 %
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
0.03 %
8
22.86 %
25
71.43 %
2
5.71 %
2
5.71 %
0
0.00 %
PAR-RAPID
1
1
0.00 %
0
0.00 %
1
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
3
11
0.01 %
3
27.27 %
2
18.18 %
2
18.18 %
2
18.18 %
4
36.36 %
PAR-OTHER
2
17
0.01 %
0
0.00 %
9
52.94 %
6
35.29 %
6
35.29 %
2
11.76 %
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
15
0.01 %
0
0.00 %
13
86.67 %
2
13.33 %
2
13.33 %
0
0.00 %
PAR-RAPID
3
7
0.01 %
2
28.57 %
5
71.43 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
2
145
0.11 %
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
0.12 %
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
10
39
0.03 %
4
10.26 %
32
82.05 %
3
7.69 %
3
7.69 %
0
0.00 %
PAR-IR-SEV
19
87
0.07 %
14
16.09 %
69
79.31 %
3
3.45 %
2
2.30 %
2
2.30 %
PAR-NEW-IN
49
4,907
3.72 %
88
1.79 %
4483
91.36 %
403
8.21 %
320
6.52 %
16
0.33 %
PAR-OTHER
2
39
0.03 %
4
10.26 %
32
82.05 %
4
10.26 %
3
7.69 %
0
0.00 %
PAR-PERSIS
3
191
0.14 %
3
1.57 %
169
88.48 %
18
9.42 %
18
9.42 %
1
0.52 %
PAR-POSTM
38
138
0.10 %
11
7.97 %
122
88.41 %
6
4.35 %
5
3.62 %
0
0.00 %
PAR-RAPID
19
38
0.03 %
11
28.95 %
27
71.05 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
10
568
0.43 %
34
5.99 %
501
88.20 %
26
4.58 %
23
4.05 %
10
1.76 %
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
14
1,497
1.13 %
70
4.68 %
1358
90.71 %
86
5.74 %
67
4.48 %
2
0.13 %
PAR-OTHER
2
214
0.16 %
8
3.74 %
182
85.05 %
28
13.08 %
24
11.21 %
0
0.00 %
PAR-POSTM
3
5
0.00 %
0
0.00 %
5
100.00 %
1
20.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
5
9
0.01 %
2
22.22 %
7
77.78 %
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
5
12
0.01 %
7
58.33 %
5
41.67 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
3
115
0.09 %
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 %
W Glamorgan
PAR-RECUR
2
113
0.09 %
3
2.65 %
101
89.38 %
9
7.96 %
9
7.96 %
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 - Low TB
Gwynedd
PAR-IR-EX
2
9
0.01 %
1
11.11 %
8
88.89 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
42
2,142
1.62 %
78
3.64 %
1791
83.61 %
306
14.29 %
270
12.61 %
3
0.14 %
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
0.08 %
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
23
2,346
1.78 %
36
1.53 %
2188
93.27 %
147
6.27 %
115
4.90 %
7
0.30 %
PAR-OTHER
2
24
0.02 %
0
0.00 %
15
62.50 %
10
41.67 %
9
37.50 %
0
0.00 %
PAR-POSTM
42
73
0.06 %
4
5.48 %
64
87.67 %
7
9.59 %
4
5.48 %
1
1.37 %
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
0.30 %
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
965
29905
22.66 %
1842
6.16 %
25934
86.72 %
2462
8.23 %
1977
6.61 %
153
0.51 %
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 %
Kirkcudbright
PAR-NEW-IN
4
493
0.37 %
8
1.62 %
432
87.63 %
67
13.59 %
53
10.75 %
0
0.00 %
Wigtown
PAR-NEW-IN
4
527
0.40 %
14
2.66 %
483
91.65 %
39
7.40 %
30
5.69 %
0
0.00 %
Scotland
10
1025
0.78 %
22
2.15 %
920
89.76 %
106
10.34 %
83
8.10 %
0
0.00 %
Grand Total
Sum:
1709 131980
5606
116665
10842
8823
887
*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 July 2022
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
90
10211
100.0%
299
2.9%
9034
88.5%
973
9.5%
697
6.8%
181
1.8%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
90
10211
100.0%
299
2.9%
9034
88.5%
973
9.5%
697
6.8%
181
1.8%
Scotland
Parallel
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
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
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Wales
Parallel
142
3649
70.3%
110
3.0%
3298
90.4%
310
8.5%
236
6.5%
5
0.1%
Serial/Extended
16
1542
29.7%
76
4.9%
1357
88.0%
151
9.8%
109
7.1%
0
0.0 %
Total
158
5191
100.0%
186
3.6%
4655
89.7%
461
8.9%
345
6.6%
5
0.1%
GB
Parallel
232
13860
90.0%
409
3.0%
12332
89.0%
1283
9.3%
933
6.7%
186
1.3%
Serial/Extended
16
1542
10.0%
76
4.9%
1357
88.0%
151
9.8%
109
7.1%
0
0.0 %
Total
248
15402
100.0%
485
3.1%
13689
88.9%
1434
9.3%
1042
6.8%
186
1.2%
90.00
158.00
* 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
727 100834
99.8%
3726
3.7%
89629
88.9%
8257
8.2%
6749
6.7%
730
0.7%
Serial/Extended
7
216
0.2%
16
7.4%
182
84.3%
17
7.9%
14
6.5%
4
1.9%
Total
734 101050
100.0%
3742
3.7%
89811
88.9%
8274
8.2%
6763
6.7%
734
0.7%
Scotland
Parallel
8
1020
99.5%
22
2.2%
915
89.7%
106
10.4%
83
8.1%
0
0.0 %
Serial/Extended
2
5
0.5%
0
0.0 %
5 100.0%
0
0.0 %
0
0.0 %
0
0.0 %
Total
10
1025
100.0%
22
2.1%
920
89.8%
106
10.3%
83
8.1%
0
0.0 %
Wales
Parallel
856
19192
64.2%
1088
5.7%
16687
86.9%
1628
8.5%
1323
6.9%
94
0.5%
Serial/Extended
109
10713
35.8%
754
7.0%
9247
86.3%
834
7.8%
654
6.1%
59
0.6%
Total
965
29905
100.0%
1842
6.2%
25934
86.7%
2462
8.2%
1977
6.6%
153
0.5%
GB
Parallel
1591 121046
91.7%
4836
4.0% 107231
88.6%
9991
8.3%
8155
6.7%
824
0.7%
Serial/Extended
118
10934
8.3%
770
7.0%
9434
86.3%
851
7.8%
668
6.1%
63
0.6%
Total
1709 131980
100.0%
5606
4.2% 116665
88.4%
10842
8.2%
8823
6.7%
887
0.7%
734.00
965.00
10.00
* 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
16
1542
10.0%
76
4.9%
1357
88.0%
151
9.8 %
109
7.1 %
0
Parallel – chronic breakdown
2
8
0.1%
0
0.0 %
4
50.0%
4
50.0 %
4
50.0 %
0
Parallel - Herd or Group Slaughter
2
7
0.0%
1
14.3%
5
71.4%
2
28.6 %
1
14.3 %
0
Parallel - IRs in Exit Strategy for persistent her
10
31
0.2%
5
16.1%
25
80.6%
2
6.5 %
1
3.2 %
0
Parallel New Infection
49
4218
27.4%
82
1.9%
3827
90.7%
347
8.2 %
262
6.2 %
47
1.1 %
Parallel - new infection cull area
7
177
1.1%
4
2.3%
159
89.8%
19
10.7 %
14
7.9 %
0
Parallel - Other
12
131
0.9%
5
3.8%
98
74.8%
30
22.9 %
28
21.4 %
0
Parallel Persistent Infection
11
614
4.0%
19
3.1%
550
89.6%
68
11.1 %
44
7.2 %
1
0.2 %
Parallel - persistent infection cull area
3
805
5.2%
2
0.2%
771
95.8%
54
6.7 %
32
4.0 %
0
Parallel – post-mvt test coupled with IDEXX an
18
71
0.5%
5
7.0%
64
90.1%
5
7.0 %
2
2.8 %
0
Parallel - Rapid Testing Two-times IRs
30
63
0.4%
10
15.9%
49
77.8%
3
4.8 %
3
4.8 %
1
1.6 %
Parallel - Recurrent breakdowns
65
7598
49.3%
255
3.4%
6669
87.8%
742
9.8 %
537
7.1 %
137
1.8 %
Parallel - severe IRs - in persistent herds
23
137
0.9%
21
15.3%
111
81.0%
7
5.1 %
5
3.6 %
0
Total
248
15402
100.0%
485
3.1%
13689
88.9%
1434
9.3 %
1042
6.8 %
186
1.2 %
Table 4a. Summaryof IFN Gamma results by submission reason (July 2022)
England - HRA
Parallel – chronic breakdown
2
8
0.1%
0
0.0 %
4
50.0%
4
50.0 %
4
50.0 %
0
Parallel - Herd or Group Slaughter
1
5
0.0%
0
0.0 %
4
80.0%
2
40.0 %
1
20.0 %
0
Parallel - new infection cull area
6
176
1.1%
4
2.3%
158
89.8%
19
10.8 %
14
8.0 %
0
Parallel - Other
2
17
0.1%
1
5.9%
11
64.7%
6
35.3 %
5
29.4 %
0
Parallel Persistent Infection
1
184
1.2%
4
2.2%
166
90.2%
20
10.9 %
14
7.6 %
0
Parallel - Recurrent breakdowns
49
7028
45.6%
241
3.4%
6137
87.3%
714
10.2 %
513
7.3 %
137
1.9 %
England - HRA
61
7418
48.2%
250
3.4%
6480
87.4%
765
10.3 %
551
7.4 %
137
1.8 %
England - Edge
Parallel New Infection
14
1030
6.7%
28
2.7%
900
87.4%
88
8.5 %
58
5.6 %
44
4.3 %
Parallel - new infection cull area
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Parallel Persistent Infection
3
176
1.1%
4
2.3%
159
90.3%
16
9.1 %
13
7.4 %
0
Parallel - persistent infection cull area
3
805
5.2%
2
0.2%
771
95.8%
54
6.7 %
32
4.0 %
0
Parallel - Recurrent breakdowns
2
369
2.4%
9
2.4%
350
94.9%
11
3.0 %
10
2.7 %
0
England - Edge
23
2381
15.5%
43
1.8%
2181
91.6%
169
7.1 %
113
4.7 %
44
1.8 %
England - LRA
Parallel New Infection
6
412
2.7%
6
1.5%
373
90.5%
39
9.5 %
33
8.0 %
0
England - LRA
6
412
2.7%
6
1.5%
373
90.5%
39
9.5 %
33
8.0 %
0
Wales - High TB
Extended Flexible IFN-GAMMA test
14
1531
9.9%
76
5.0%
1350
88.2%
147
9.6 %
105
6.9 %
0
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 her
8
19
0.1%
5
26.3%
14
73.7%
1
5.3 %
0
0
Parallel - Other
5
69
0.4%
4
5.8%
58
84.1%
7
10.1 %
7
10.1 %
0
Parallel Persistent Infection
6
253
1.6%
11
4.3%
225
88.9%
31
12.3 %
16
6.3 %
1
0.4 %
Parallel - Rapid Testing Two-times IRs
26
59
0.4%
10
16.9%
45
76.3%
3
5.1 %
3
5.1 %
1
1.7 %
Parallel - Recurrent breakdowns
12
197
1.3%
4
2.0%
179
90.9%
17
8.6 %
14
7.1 %
0
Parallel - severe IRs - in persistent herds
19
129
0.8%
21
16.3%
103
79.8%
6
4.7 %
5
3.9 %
0
Wales - High TB
91
2259
14.7%
132
5.8%
1975
87.4%
212
9.4 %
150
6.6 %
2
0.1 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
2
11
0.1%
0
0.0 %
7
63.6%
4
36.4 %
4
36.4 %
0
Parallel - IRs in Exit Strategy for persistent her
2
12
0.1%
0
0.0 %
11
91.7%
1
8.3 %
1
8.3 %
0
Parallel New Infection
13
1468
9.5%
28
1.9%
1331
90.7%
138
9.4 %
107
7.3 %
2
0.1 %
Parallel - Other
1
15
0.1%
0
0.0 %
9
60.0%
6
40.0 %
6
40.0 %
0
Parallel Persistent Infection
1
1
0.0%
0
0.0 %
0
0.0 %
1
100.0 %
1
100.0 %
0
Parallel – post-mvt test coupled with IDEXX an
7
32
0.2%
2
6.3%
29
90.6%
1
3.1 %
1
3.1 %
0
Parallel - Rapid Testing Two-times IRs
4
4
0.0%
0
0.0 %
4
100.0%
0
0
0
Parallel - Recurrent breakdowns
1
3
0.0%
0
0.0 %
3
100.0%
0
0
0
Parallel - severe IRs - in persistent herds
4
8
0.1%
0
0.0 %
8
100.0%
1
12.5 %
0
0
Wales - Intermediate TB
35
1554
10.1%
30
1.9%
1402
90.2%
152
9.8 %
120
7.7 %
2
0.1 %
Wales - Low TB
Parallel New Infection
16
1308
8.5%
20
1.5%
1223
93.5%
82
6.3 %
64
4.9 %
1
0.1 %
Parallel - Other
4
30
0.2%
0
0.0 %
20
66.7%
11
36.7 %
10
33.3 %
0
Parallel – post-mvt test coupled with IDEXX an
11
39
0.3%
3
7.7%
35
89.7%
4
10.3 %
1
2.6 %
0
Parallel - Recurrent breakdowns
1
1
0.0%
1
100.0%
0
0.0 %
0
0
0
Wales - Low TB
32
1378
8.9%
24
1.7%
1278
92.7%
97
7.0 %
75
5.4 %
1
0.1 %

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
115
10928
8.3%
770
7.0%
9428
86.3%
851
7.8 %
668
6.1 %
63
0.6 %
Parallel – chronic breakdown
18
2277
1.7%
81
3.6%
2063
90.6%
162
7.1 %
133
5.8 %
0
Parallel - Herd or Group Slaughter
5
111
0.1%
18
16.2%
77
69.4%
21
18.9 %
16
14.4 %
0
Parallel - IRs in Exit Strategy for persistent herds
63
226
0.2%
61
27.0%
156
69.0%
10
4.4 %
8
3.5 %
1
0.4 %
Parallel New Infection
282
26979
20.4%
741
2.7%
24055
89.2%
2341
8.7 %
1945
7.2 %
238
0.9 %
Parallel - new infection cull area
57
7845
5.9%
365
4.7%
6932
88.4%
633
8.1 %
537
6.8 %
11
0.1 %
Parallel - Other
71
2666
2.0%
140
5.3%
2337
87.7%
227
8.5 %
185
6.9 %
4
0.2 %
Parallel Persistent Infection
93
12258
9.3%
490
4.0%
10636
86.8%
1104
9.0 %
894
7.3 %
238
1.9 %
Parallel - persistent infection cull area
27
5035
3.8%
200
4.0%
4467
88.7%
426
8.5 %
346
6.9 %
22
0.4 %
Parallel – post-mvt test coupled with IDEXX anti
114
337
0.3%
22
6.5%
302
89.6%
18
5.3 %
11
3.3 %
2
0.6 %
Parallel - Rapid Testing Two-times IRs
220
573
0.4%
153
26.7%
374
65.3%
41
7.2 %
36
6.3 %
10
1.7 %
Parallel - Recurrent breakdowns
448
61670
46.7%
2305
3.7%
55105
89.4%
4939
8.0 %
3989
6.5 %
271
0.4 %
Parallel - severe IRs - in persistent herds
193
1069
0.8%
260
24.3%
727
68.0%
69
6.5 %
55
5.1 %
27
2.5 %
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
1709 131980
100.0%
5606
4.2%
116665
88.4%
10842
8.2 %
8823
6.7 %
887
0.7 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2022)
England - HRA
Extended Flexible IFN-GAMMA test
6
215
0.2%
16
7.4%
181
84.2%
17
7.9 %
14
6.5 %
4
1.9 %
Parallel – chronic breakdown
18
2277
1.7%
81
3.6%
2063
90.6%
162
7.1 %
133
5.8 %
0
Parallel - Herd or Group Slaughter
2
69
0.1%
13
18.8%
48
69.6%
13
18.8 %
8
11.6 %
0
Parallel New Infection
3
312
0.2%
23
7.4%
265
84.9%
32
10.3 %
24
7.7 %
0
Parallel - new infection cull area
45
5607
4.2%
306
5.5%
4884
87.1%
469
8.4 %
409
7.3 %
8
0.1 %
Parallel - Other
26
1635
1.2%
78
4.8%
1472
90.0%
110
6.7 %
84
5.1 %
1
0.1 %
Parallel Persistent Infection
51
8055
6.1%
331
4.1%
6884
85.5%
732
9.1 %
616
7.6 %
224
2.8 %
Parallel - persistent infection cull area
21
4073
3.1%
197
4.8%
3581
87.9%
328
8.1 %
274
6.7 %
21
0.5 %
Parallel - Recurrent breakdowns
358
51331
38.9%
2000
3.9%
45636
88.9%
4284
8.3 %
3443
6.7 %
252
0.5 %
England - Edge
Parallel New Infection
93
10366
7.9%
337
3.3%
9193
88.7%
909
8.8 %
771
7.4 %
65
0.6 %
Parallel - new infection cull area
11
2085
1.6%
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
1.9%
72
2.9%
2302
92.0%
177
7.1 %
124
5.0 %
3
0.1 %
Parallel - persistent infection cull area
6
962
0.7%
3
0.3%
886
92.1%
98
10.2 %
72
7.5 %
1
0.1 %
Parallel - Recurrent breakdowns
30
6933
5.3%
136
2.0%
6430
92.7%
418
6.0 %
360
5.2 %
7
0.1 %
England - LRA
Parallel New Infection
50
4389
3.3%
87
2.0%
3862
88.0%
352
8.0 %
295
6.7 %
145
3.3 %
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
734 101050
76.6%
3742
3.7%
89811
88.9%
8274
8.2 %
6763
6.7 %
734
0.7 %
Wales - High TB
Extended Flexible IFN-GAMMA test
91
9452
7.2%
668
7.1%
8161
86.3%
733
7.8 %
575
6.1 %
49
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
46
170
0.1%
56
32.9%
110
64.7%
5
2.9 %
3
1.8 %
1
0.6 %
Parallel - Other
29
634
0.5%
44
6.9%
541
85.3%
58
9.1 %
49
7.7 %
0
Parallel Persistent Infection
27
1496
1.1%
84
5.6%
1268
84.8%
175
11.7 %
134
9.0 %
10
0.7 %
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
180
485
0.4%
126
26.0%
316
65.2%
38
7.8 %
33
6.8 %
10
2.1 %
Parallel - Recurrent breakdowns
53
3174
2.4%
139
4.4%
2863
90.2%
207
6.5 %
160
5.0 %
12
0.4 %
Parallel - severe IRs - in persistent herds
166
957
0.7%
241
25.2%
644
67.3%
63
6.6 %
51
5.3 %
21
2.2 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
15
865
0.7%
46
5.3%
764
88.3%
61
7.1 %
45
5.2 %
10
1.2 %
Parallel - IRs in Exit Strategy for persistent herd
13
45
0.0%
4
8.9%
36
80.0%
5
11.1 %
5
11.1 %
0
Parallel New Infection
63
6404
4.9%
158
2.5%
5841
91.2%
489
7.6 %
387
6.0 %
18
0.3 %
Parallel - Other
9
279
0.2%
15
5.4%
228
81.7%
39
14.0 %
34
12.2 %
2
0.7 %
Parallel Persistent Infection
5
206
0.2%
3
1.5%
182
88.3%
20
9.7 %
20
9.7 %
1
0.5 %
Parallel – post-mvt test coupled with IDEXX ant
42
156
0.1%
12
7.7%
138
88.5%
7
4.5 %
5
3.2 %
1
0.6 %
Parallel - Rapid Testing Two-times IRs
35
76
0.1%
25
32.9%
49
64.5%
2
2.6 %
2
2.6 %
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
26
111
0.1%
19
17.1%
82
73.9%
6
5.4 %
4
3.6 %
6
5.4 %
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
2
40
0.0%
4
10.0%
28
70.0%
8
20.0 %
8
20.0 %
0
Parallel - IRs in Exit Strategy for persistent herd
4
11
0.0%
1
9.1%
10
90.9%
0
0
0
Parallel New Infection
65
4488
3.4%
114
2.5%
3979
88.7%
453
10.1 %
385
8.6 %
10
0.2 %
Parallel - Other
5
32
0.0%
0
0.0 %
21
65.6%
11
34.4 %
10
31.3 %
1
3.1 %
Parallel – post-mvt test coupled with IDEXX ant
71
179
0.1%
10
5.6%
162
90.5%
11
6.1 %
6
3.4 %
1
0.6 %
Parallel - Rapid Testing Two-times IRs
5
12
0.0%
2
16.7%
9
75.0%
1
8.3 %
1
8.3 %
0

Table 4b. Summary of IFN Gamma results by submission reason (Total 2022) Cont.
Parallel - Recurrent breakdowns
1
1
0.0%
1
100.0%
0
0.0 %
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
965
29905
22.7%
1842
6.2%
25934
86.7%
2462
8.2 %
1977
6.6 %
153
0.5 %
Scotland - Scotland
Parallel New Infection
8
1020
0.8%
22
2.2%
915
89.7%
106
10.4 %
83
8.1 %
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
10
1025
0.8%
22
2.1%
920
89.8%
106
10.3 %
83
8.1 %
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 August
312
17920
167
912
3
26
0
0
0
0
35
2
0
7
0
755
0
82
1
1
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
1
0
10
2
563
0
51
0
1
May
269
23949
158
918
2
19
0
0
0
0
62
0
1
8
3
778
12
30
1
2
June
213
17755
114
590
20
0
0
0
0
47
0
3
0
0
460
55
1
1
3
July
248
15402
109
485
71
175
0
0
0
0
10
0
0
0
0
157
17
0
0
0
Totals (last
12 months)
3138
224349
1707
10330
77
390
0
0
0
0
653
21
4
109
10
8389
85
522
5
7
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
1345
171906
887
7084
341
0
0
0
0
605
11
1
40
6
5980
0
27
0
0
Scotland
19
1990
13
43
1
0
0
0
0
6
0
0
0
0
34
0
2
0
0
Wales
1774
50453
807
3203
48
0
0
0
0
42
10
3
69
4
2375
85
493
5
7
Totals
3138
224349
1707
10330
390
0
0
0
0
653
21
4
109
10
8389
85
522
5
7
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
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
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
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
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
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
Wiltshire
Staffs
S Glamorgan
Pembs
Notts
NE Wales
Leics & Rut
Heref
Gwynedd
Gr Manchester
E Sussex
Devon
Corn & Scilly
Ceredigion
Bucks
Avon
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during July 2022 (% submission per County)
County
%Resampled %Retested
Avon
7.92 %
10.89 %
Berks
6.08 %
9.46 %
Bucks
3.27 %
8.73 %
Carms
6.50 %
9.74 %
Ceredigion
12.77 %
14.89 %
Cheshire
4.59 %
7.14 %
Corn & Scilly
7.73 %
11.00 %
Derbyshire
2.71 %
2.98 %
Devon
14.97 %
19.46 %
Dorset
13.95 %
19.38 %
E Sussex
8.82 %
11.76 %
Gloucs
10.36 %
12.89 %
Gr Manchester
15.52 %
15.52 %
Gwent
7.07 %
7.07 %
Gwynedd
5.13 %
6.15 %
Hampshire
33.33 %
33.33 %
Heref
7.67 %
9.72 %
Lancashire
7.52 %
8.65 %
Leics & Rut
21.43 %
21.43 %
Lincs
4.55 %
7.95 %
NE Wales
7.49 %
9.73 %
Northants
Notts
9.09 %
9.09 %
Oxon
5.90 %
7.56 %
Pembs
7.01 %
9.32 %
Powys
3.82 %
5.18 %
S Glamorgan
Shropshire
4.69 %
6.65 %
Staffs
29.00 %
34.00 %
W Glamorgan
33.33 %
33.33 %
Wiltshire
10.10 %
15.15 %

Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
10090
299
3.0%
10211
299
2.9%
Wales
5100
186
3.6%
5191
186
3.6%
GB
15190
485
3.2%
15402
485
3.1%
Table 6a (i): Number of animals and submissions tested in July 2022
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
94695
3742
4.0%
101050
3742
3.7%
Wales
28317
1842
6.5%
29905
1842
6.2%
Scotland
964
22
2.3%
1025
22
2.1%
GB
123974
5606
4.5%
131980
5606
4.2%
Table 6b (i): Number of animals and submissions tested in 2022 Up to end of July
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
20066
841
4.2%
20377
841
4.1%
Wales
4393
236
5.4%
4464
236
5.3%
GB
24459
1077
4.4%
24841
1077
4.3%
Table 6a (ii): Number of animals and submissions tested in July 2021
Table 6b (ii): Number of animals and submissions tested in 2021 Up to end of July
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
149758
7993
5.3%
156713
7996
5.1%
Wales
40499
2558
6.3%
43231
2558
5.9%
Scotland
577
129
22.4%
1058
129
12.2%
GB
190824
10680
5.6%
201002
10683
5.3%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Devon
PRV-SP
1
2
0
0
Leicestershire and Rutland
PRV-SP
1
1
0
0
Total
2
3
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 July 2022
Table 7b Number of private samples 2022
* Test type
Num
Submissions
Num
Samples
Num
Positives
Private
% Positive
Devon
PRV-SE
1
55
5
9.09 %
PRV-SP
1
2
0
0
Dorset
PRV-SP
1
2
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
19
164
17
10.37 %

Country
County
Test Reason
Num
Submissions
Num Samples
Tested
Num Positive
Samples
% Positive
Wales
Carmarthenshire
BOV-IR-C
4
35
9
25.7%
BOV-IR-EX
2
6
0
0
BOV-OTHER
2
522
7
1.3%
Ceredigion
BOV-IR-C
3
22
6
27.3%
BOV-P
2
62
6
9.7%
North East Wales
BOV-IR-C
3
7
2
28.6%
BOV-OTHER
1
2
0
0
BOV-POSTM
7
27
4
14.8%
North West Wales
BOV-POSTM
1
1
0
0
Pembrokeshire
BOV-IR-C
11
104
16
15.4%
BOV-IR-EX
2
21
0
0
BOV-OTHER
2
178
17
9.6%
BOV-P
1
89
2
2.2%
Powys
BOV-IR-C
2
12
3
25.0%
South Wales
BOV-IR-C
1
8
5
62.5%
Wales
44
1,096
77
7.0%
All GB
44
1,096
77
7.0 %
Table 8a Number of Cattle Antibody Tests July 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
18
163
48
29.4%
BOV-IR-EX
4
22
2
9.1%
BOV-OTHER
4
678
14
2.1%
BOV-P
1
28
0
0
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
25
172
24
14.0%
BOV-IR-EX
2
14
4
28.6%
BOV-OTHER
4
62
0
0
BOV-P
2
576
46
8.0%
BOV-POSTM
62
156
32
20.5%
North West Wales
BOV-POSTM
3
3
0
0
Pembrokeshire
BOV-IR-C
92
763
160
21.0%
BOV-IR-EX
15
92
22
23.9%
BOV-OTHER
8
591
44
7.4%
BOV-P
10
629
33
5.2%
OTHER
1
30
0
0
Powys
BOV-IR-C
16
95
19
20.0%
BOV-P
4
206
5
2.4%
BOV-POSTM
1
1
0
0
South Wales
BOV-IR-C
10
65
12
18.5%
BOV-OTHER
2
30
5
16.7%

Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
BOV-P
1
282
16
5.7%
Wales
311
4,901
522
10.7%
All GB
311
4,901
522
10.7 %