Monthly Report: Surveillance Project SB4008 IFNg (TC0651 and TC0751) & Antibody (TC0077) tests for bovine tuberculosis- November 2024
Source: environment.data.gov.uk (2025-04-29)

Interferon-Gamma Testing for Bovine Tuberculosis - Monthly Reports from January 2024. 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.
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

Monthly Report:
Surveillance Project
SB4008 IFNg (TC0651 and
TC0751) & Antibody
(TC0077) tests for bovine
tuberculosis
Number
Report Period
Issued 09 December 2024
1st to 30th November 2024
219

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
November
2024
%
Total 2024
%
Submissions
248
2432
Samples
Total (%)
18671
100.00 %
199687
100.00 %
England
13612
72.90 %
129074
64.64 %
Wales
5041
27.00 %
64847
32.47 %
Scotland
18
0.10 %
5766
2.89 %
Parallel Tests
PAR-CHR
85
0.46 %
1630
0.82 %
PAR-CUL-N
11
0.06 %
397
0.20 %
PAR-CUL-P
4
0.02 %
5414
2.71 %
PAR-HERD-S
80
0.43 %
161
0.08 %
PAR-IR-EX
27
0.14 %
417
0.21 %
PAR-IR-SEV
394
2.11 %
3407
1.71 %
PAR-NEW-IN
5558
29.77 %
46824
23.45 %
PAR-OTHER
1090
5.84 %
8999
4.51 %
PAR-PERSIS
2219
11.88 %
33929
xx-xxxx-xxxx %
PAR-POSTM
0
0.00 %
PAR-RAPID
55
0.29 %
754
0.38 %
PAR-RECUR
8731
46.76 %
90144
45.14 %
Total(% of all samples)
18254
97.77 %
192076
96.19 %
Serial/Extended Tests
SER-ANOM
0
0.00 %
SER-FLEXI
417
2.23 %
7339
3.68 %
SER-FRAUD
0
0.00 %
SER-NSR
0
0.00 %
4
0.00 %
SER-OTHER
0
0.00 %
268
0.13 %
Total(% of all samples)
417
2.23 %
7611
3.81 %
Total
18671
100.00 %
199687
100.00 %
Retests
Total (% of all samples)
942
5.05 %
12755
6.39 %
England
690
3.70 %
8755
4.38 %
Wales
251
1.34 %
3640
1.82 %
Scotland
1
0.01 %
360
0.18 %
Resamples
Total (% of all samples)
780
4.18 %
10348
5.18 %
England
573
3.07 %
7175
3.59 %
Wales
206
1.10 %
2896
1.45 %
Scotland
1
0.01 %
277
0.14 %
Rejects
Total (% of all samples)
330
1.77 %
1736
0.87 %
England
320
1.71 %
1503
0.75 %
Wales
10
0.05 %
225
0.11 %
Scotland
0
0.00 %
8
0.00 %
Table 1. Monthly Totals for November 2024
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-RAPID
PAR-RECUR
SER-FLEXI
Breakdown of
Reason for
submission
PAR-CHR
85
0.5 %
PAR-CUL-N
11
0.1 %
PAR-CUL-P
4
0.0 %
PAR-HERD-S
80
0.4 %
PAR-IR-EX
27
0.1 %
PAR-IR-SEV
394
2.1 %
PAR-NEW-IN
5558
29.8 %
PAR-OTHER
1090
5.8 %
PAR-PERSIS
2219
11.9 %
PAR-RAPID
55
0.3 %
PAR-RECUR
8731
46.8 %
SER-FLEXI
417
2.2 %
Total
18671
100.00 %
Figure 1. Number of samples submitted in each category during November 2024
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
Ayrshire
S Wales
S Glamorgan
Powys
Pembs
NE Wales
Mid Glamorgan
Gwynedd
Gwent
Ceredigion
Carms
Wiltshire
Warks
Staffs
Somerset excl N
Shropshire
Oxon
Notts
Northants
Lincs
Leics & Rut
Lancashire
Heref
Hampshire
Gloucs
Dorset
Devon
Derbyshire
Cumbria
Corn & Scilly
Cheshire
Bucks
Avon
Scotland
Wales
England
SER-FLEXI
PAR-RECUR
PAR-RAPID
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 November 2024
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
5000
10000
15000
20000
25000
Wigtown
West lothian
Kirkcudbright
Ayrshire
W Glamorgan
S Wales
S Glamorgan
Powys
Pembs
NE Wales
Mid Glamorgan
Gwynedd
Gwent
Conwy
Ceredigion
Carms
W Sussex
Wiltshire
Warks
Staffs
Somerset excl N
Shropshire
Oxon
N Yorks
Notts
Northants
Norfolk
Lincs
Leics & Rut
Lancashire
Kent
Humberside
Herts
Heref
Hampshire
Gloucs
E Sussex
Durham
Dorset
Devon
Derbyshire
Cumbria
Corn & Scilly
Cheshire
Bucks
Berks
Beds
Avon
Scotland
Wales
England
SER-OTHER
SER-NSR
SER-FLEXI
PAR-RECUR
PAR-RAPID
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 2024
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
2
20
0.11 %
0
0.00 %
17
85.00 %
3
15.00 %
3
15.00 %
0
0.00 %
Corn & Scilly
PAR-OTHER
1
439
2.35 %
12
2.73 %
410
93.39 %
18
4.10 %
17
3.87 %
0
0.00 %
PAR-RECUR
4
313
1.68 %
14
4.47 %
278
88.82 %
21
6.71 %
20
6.39 %
1
0.32 %
Devon
PAR-PERSIS
1
375
2.01 %
52
13.87 %
316
84.27 %
16
4.27 %
7
1.87 %
0
0.00 %
PAR-RECUR
7
874
4.68 %
23
2.63 %
782
89.47 %
70
8.01 %
64
7.32 %
5
0.57 %
Dorset
PAR-OTHER
1
29
0.16 %
1
3.45 %
28
96.55 %
1
3.45 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
12
0.06 %
1
8.33 %
10
83.33 %
1
8.33 %
1
8.33 %
0
0.00 %
SER-FLEXI
3
306
1.64 %
47
15.36 %
252
82.35 %
11
3.59 %
7
2.29 %
0
0.00 %
Gloucs
PAR-RECUR
1
25
0.13 %
10
40.00 %
15
60.00 %
1
4.00 %
0
0.00 %
0
0.00 %
Heref
PAR-OTHER
2
8
0.04 %
1
12.50 %
6
75.00 %
2
25.00 %
1
12.50 %
0
0.00 %
PAR-PERSIS
1
290
1.55 %
18
6.21 %
261
90.00 %
12
4.14 %
11
3.79 %
0
0.00 %
PAR-RECUR
8
887
4.75 %
38
4.28 %
802
90.42 %
49
5.52 %
45
5.07 %
2
0.23 %
Shropshire
PAR-CHR
2
85
0.46 %
3
3.53 %
71
83.53 %
12
14.12 %
11
12.94 %
0
0.00 %
PAR-OTHER
1
65
0.35 %
0
0.00 %
65
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
6
808
4.33 %
45
5.57 %
702
86.88 %
69
8.54 %
61
7.55 %
0
0.00 %
Somerset excl N
PAR-RECUR
8
649
3.48 %
62
9.55 %
543
83.67 %
51
7.86 %
42
6.47 %
2
0.31 %
Staffs
PAR-RECUR
3
763
4.09 %
25
3.28 %
716
93.84 %
26
3.41 %
21
2.75 %
1
0.13 %
Wiltshire
PAR-RECUR
10
2,142
11.47 %
94
4.39 %
1993
93.04 %
77
3.59 %
55
2.57 %
0
0.00 %
England - Edge
Bucks
PAR-NEW-IN
5
932
4.99 %
45
4.83 %
853
91.52 %
38
4.08 %
34
3.65 %
0
0.00 %
Cheshire
PAR-OTHER
1
250
1.34 %
7
2.80 %
228
91.20 %
18
7.20 %
15
6.00 %
0
0.00 %
PAR-RECUR
2
689
3.69 %
50
7.26 %
621
90.13 %
23
3.34 %
18
2.61 %
0
0.00 %
Derbyshire
PAR-CUL-N
1
11
0.06 %
0
0.00 %
11
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
1
58
0.31 %
2
3.45 %
51
87.93 %
7
12.07 %
5
8.62 %
0
0.00 %
Hampshire
PAR-NEW-IN
1
58
0.31 %
5
8.62 %
51
87.93 %
7
12.07 %
1
1.72 %
1
1.72 %
Leics & Rut
PAR-NEW-IN
2
93
0.50 %
1
1.08 %
85
91.40 %
9
9.68 %
7
7.53 %
0
0.00 %
Northants
PAR-NEW-IN
2
54
0.29 %
5
9.26 %
43
79.63 %
6
11.11 %
5
9.26 %
1
1.85 %
Table 2a. Summary by County for November 2024
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 November 2024 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
3
376
2.01 %
13
3.46 %
346
92.02 %
18
4.79 %
17
4.52 %
0
0.00 %
Oxon
PAR-NEW-IN
4
487
2.61 %
11
2.26 %
435
89.32 %
45
9.24 %
41
8.42 %
0
0.00 %
PAR-OTHER
1
78
0.42 %
2
2.56 %
73
93.59 %
4
5.13 %
3
3.85 %
0
0.00 %
PAR-RECUR
7
1,014
5.43 %
42
4.14 %
946
93.29 %
33
3.25 %
26
2.56 %
0
0.00 %
Warks
PAR-HERD-S
2
80
0.43 %
6
7.50 %
67
83.75 %
8
10.00 %
7
8.75 %
0
0.00 %
England - LRA
Cumbria
PAR-NEW-IN
3
612
3.28 %
0
0.00 %
303
49.51 %
4
0.65 %
2
0.33 %
307
50.16 %
Lancashire
PAR-NEW-IN
2
562
3.01 %
20
3.56 %
529
94.13 %
16
2.85 %
13
2.31 %
0
0.00 %
Lincs
PAR-CUL-P
1
4
0.02 %
0
0.00 %
3
75.00 %
1
25.00 %
1
25.00 %
0
0.00 %
PAR-NEW-IN
1
112
0.60 %
3
2.68 %
102
91.07 %
7
6.25 %
7
6.25 %
0
0.00 %
SER-FLEXI
2
52
0.28 %
1
1.92 %
46
88.46 %
6
11.54 %
5
9.62 %
0
0.00 %
England
103
13612
72.90 %
659
4.84 %
12060
88.60 %
690
5.07 %
573
4.21 %
320
2.35 %
Wales - High TB
Carms
PAR-IR-SEV
4
22
0.12 %
13
59.09 %
9
40.91 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
9
852
4.56 %
65
7.63 %
757
88.85 %
38
4.46 %
29
3.40 %
1
0.12 %
PAR-RAPID
2
3
0.02 %
2
66.67 %
1
33.33 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
3
67
0.36 %
3
4.48 %
57
85.07 %
7
10.45 %
7
10.45 %
0
0.00 %
Ceredigion
PAR-IR-SEV
2
24
0.13 %
17
70.83 %
6
25.00 %
0
0.00 %
0
0.00 %
1
4.17 %
PAR-RAPID
4
17
0.09 %
7
41.18 %
10
58.82 %
1
5.88 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
13
0.07 %
0
0.00 %
10
76.92 %
3
23.08 %
3
23.08 %
0
0.00 %
Gwent
PAR-IR-SEV
1
9
0.05 %
4
44.44 %
5
55.56 %
1
11.11 %
0
0.00 %
0
0.00 %
PAR-PERSIS
2
117
0.63 %
7
5.98 %
105
89.74 %
6
5.13 %
5
4.27 %
0
0.00 %
PAR-RAPID
4
8
0.04 %
2
25.00 %
6
75.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
2
13
0.07 %
0
0.00 %
11
84.62 %
3
23.08 %
2
15.38 %
0
0.00 %
Pembs
PAR-IR-EX
3
9
0.05 %
4
44.44 %
4
44.44 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-IR-SEV
20
172
0.92 %
48
27.91 %
118
68.60 %
8
4.65 %
6
3.49 %
0
0.00 %
PAR-PERSIS
10
272
1.46 %
27
9.93 %
223
81.99 %
23
8.46 %
22
8.09 %
0
0.00 %
PAR-RAPID
9
14
0.07 %
4
28.57 %
9
64.29 %
1
7.14 %
1
7.14 %
0
0.00 %
PAR-RECUR
7
227
1.22 %
12
5.29 %
195
85.90 %
22
9.69 %
19
8.37 %
1
0.44 %
Powys
PAR-IR-EX
2
4
0.02 %
1
25.00 %
3
75.00 %
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 2a. Summary by County for November 2024 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
85
0.46 %
6
7.06 %
70
82.35 %
9
10.59 %
9
10.59 %
0
0.00 %
PAR-RAPID
1
1
0.01 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
S Wales
PAR-PERSIS
1
228
1.22 %
20
8.77 %
196
85.96 %
12
5.26 %
12
5.26 %
0
0.00 %
Wales - Intermediate TB
Ceredigion
PAR-RAPID
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Mid Glamorgan
PAR-IR-SEV
1
3
0.02 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-IR-EX
2
14
0.07 %
5
35.71 %
8
57.14 %
1
7.14 %
1
7.14 %
0
0.00 %
PAR-IR-SEV
6
41
0.22 %
10
24.39 %
30
73.17 %
1
2.44 %
1
2.44 %
0
0.00 %
PAR-NEW-IN
11
794
4.25 %
31
3.90 %
739
93.07 %
30
3.78 %
24
3.02 %
0
0.00 %
PAR-OTHER
3
221
1.18 %
2
0.90 %
212
95.93 %
8
3.62 %
7
3.17 %
0
0.00 %
PAR-PERSIS
1
85
0.46 %
15
17.65 %
68
80.00 %
2
2.35 %
2
2.35 %
0
0.00 %
PAR-RAPID
1
7
0.04 %
2
28.57 %
5
71.43 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
1
43
0.23 %
7
16.28 %
36
83.72 %
0
0.00 %
0
0.00 %
0
0.00 %
Powys
PAR-IR-SEV
2
7
0.04 %
1
14.29 %
6
85.71 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
6
950
5.09 %
30
3.16 %
878
92.42 %
47
4.95 %
37
3.89 %
5
0.53 %
PAR-RECUR
2
215
1.15 %
5
2.33 %
201
93.49 %
13
6.05 %
9
4.19 %
0
0.00 %
S Glamorgan
PAR-RAPID
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-IR-SEV
1
3
0.02 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
7
449
2.40 %
13
2.90 %
429
95.55 %
9
2.00 %
5
1.11 %
2
0.45 %
SER-FLEXI
1
9
0.05 %
2
22.22 %
6
66.67 %
2
22.22 %
1
11.11 %
0
0.00 %
NE Wales
PAR-IR-SEV
2
28
0.15 %
9
32.14 %
17
60.71 %
2
7.14 %
2
7.14 %
0
0.00 %
PAR-NEW-IN
1
3
0.02 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
1
7
0.04 %
2
28.57 %
4
57.14 %
1
14.29 %
1
14.29 %
0
0.00 %
Wales
144
5041
27.00 %
378
7.50 %
4447
88.22 %
251
4.98 %
206
4.09 %
10
0.20 %
Scotland - Scotland
Ayrshire
PAR-NEW-IN
1
18
0.10 %
2
11.11 %
15
83.33 %
1
5.56 %
1
5.56 %
0
0.00 %
Scotland
1
18
0.10 %
2
11.11 %
15
83.33 %
1
5.56 %
1
5.56 %
0
0.00 %
Grand Total
Sum:
248
18671
1039
16522
942
780
330
*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
5
433
0.22 %
49
11.32 %
360
83.14 %
26
6.00 %
24
5.54 %
0
0.00 %
PAR-PERSIS
6
758
0.38 %
91
12.01 %
623
82.19 %
48
6.33 %
44
5.80 %
0
0.00 %
PAR-RECUR
27
3,138
1.57 %
160
5.10 %
2794
89.04 %
225
7.17 %
182
5.80 %
2
0.06 %
SER-FLEXI
4
54
0.03 %
0
0.00 %
52
96.30 %
2
3.70 %
2
3.70 %
0
0.00 %
Corn & Scilly
PAR-CUL-P
2
891
0.45 %
35
3.93 %
805
90.35 %
58
6.51 %
51
5.72 %
0
0.00 %
PAR-OTHER
9
1,837
0.92 %
124
6.75 %
1603
87.26 %
127
6.91 %
110
5.99 %
0
0.00 %
PAR-PERSIS
13
1,684
0.84 %
132
7.84 %
1391
82.60 %
184
10.93 %
160
9.50 %
1
0.06 %
PAR-RECUR
81
8,052
4.03 %
427
5.30 %
6898
85.67 %
719
8.93 %
617
7.66 %
110
1.37 %
SER-FLEXI
9
118
0.06 %
21
17.80 %
90
76.27 %
9
7.63 %
6
5.08 %
1
0.85 %
Devon
PAR-CHR
5
458
0.23 %
10
2.18 %
411
89.74 %
41
8.95 %
36
7.86 %
1
0.22 %
PAR-CUL-N
5
240
0.12 %
13
5.42 %
213
88.75 %
17
7.08 %
14
5.83 %
0
0.00 %
PAR-CUL-P
9
735
0.37 %
30
4.08 %
576
78.37 %
157
21.36 %
129
17.55 %
0
0.00 %
PAR-OTHER
12
722
0.36 %
25
3.46 %
637
88.23 %
76
10.53 %
59
8.17 %
1
0.14 %
PAR-PERSIS
17
2,805
1.40 %
169
6.02 %
2496
88.98 %
186
6.63 %
136
4.85 %
4
0.14 %
PAR-RECUR
77
12,070
6.04 %
483
4.00 %
10777
89.29 %
913
7.56 %
735
6.09 %
75
0.62 %
Dorset
PAR-CUL-P
1
6
0.00 %
0
0.00 %
6
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
1
29
0.01 %
1
3.45 %
28
96.55 %
1
3.45 %
0
0.00 %
0
0.00 %
PAR-PERSIS
3
1,245
0.62 %
58
4.66 %
1160
93.17 %
40
3.21 %
27
2.17 %
0
0.00 %
PAR-RECUR
18
3,198
1.60 %
202
6.32 %
2852
89.18 %
172
5.38 %
142
4.44 %
2
0.06 %
SER-FLEXI
10
509
0.25 %
68
13.36 %
427
83.89 %
19
3.73 %
14
2.75 %
0
0.00 %
Gloucs
PAR-RECUR
28
4,050
2.03 %
192
4.74 %
3452
85.23 %
186
4.59 %
147
3.63 %
259
6.40 %
Heref
PAR-CHR
2
48
0.02 %
1
2.08 %
44
91.67 %
3
6.25 %
3
6.25 %
0
0.00 %
PAR-CUL-N
1
142
0.07 %
13
9.15 %
119
83.80 %
12
8.45 %
10
7.04 %
0
0.00 %
PAR-CUL-P
2
525
0.26 %
1
0.19 %
35
6.67 %
4
0.76 %
4
0.76 %
485
92.38 %
PAR-OTHER
3
158
0.08 %
11
6.96 %
137
86.71 %
13
8.23 %
10
6.33 %
0
0.00 %
PAR-PERSIS
4
855
0.43 %
43
5.03 %
786
91.93 %
30
3.51 %
26
3.04 %
0
0.00 %
Table 2b. Summary by County for 2024
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 2024 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-RECUR
47
5,659
2.83 %
260
4.59 %
4997
88.30 %
462
8.16 %
398
7.03 %
4
0.07 %
Shropshire
PAR-CHR
2
85
0.04 %
3
3.53 %
71
83.53 %
12
14.12 %
11
12.94 %
0
0.00 %
PAR-CUL-P
3
370
0.19 %
39
10.54 %
320
86.49 %
11
2.97 %
11
2.97 %
0
0.00 %
PAR-OTHER
9
383
0.19 %
27
7.05 %
334
87.21 %
24
6.27 %
22
5.74 %
0
0.00 %
PAR-PERSIS
4
778
0.39 %
81
10.41 %
674
86.63 %
28
3.60 %
23
2.96 %
0
0.00 %
PAR-RECUR
58
9,991
5.00 %
369
3.69 %
9093
91.01 %
608
6.09 %
481
4.81 %
48
0.48 %
SER-FLEXI
5
437
0.22 %
88
20.14 %
313
71.62 %
44
10.07 %
36
8.24 %
0
0.00 %
Somerset excl N
PAR-CHR
2
78
0.04 %
4
5.13 %
73
93.59 %
2
2.56 %
1
1.28 %
0
0.00 %
PAR-CUL-P
9
993
0.50 %
43
4.33 %
883
88.92 %
65
6.55 %
56
5.64 %
11
1.11 %
PAR-OTHER
2
162
0.08 %
4
2.47 %
141
87.04 %
18
11.11 %
17
10.49 %
0
0.00 %
PAR-PERSIS
3
262
0.13 %
19
7.25 %
216
82.44 %
31
11.83 %
26
9.92 %
1
0.38 %
PAR-RECUR
47
6,111
3.06 %
326
5.33 %
5502
90.03 %
340
5.56 %
275
4.50 %
8
0.13 %
SER-FLEXI
3
576
0.29 %
20
3.47 %
524
90.97 %
40
6.94 %
32
5.56 %
0
0.00 %
Staffs
PAR-CHR
3
178
0.09 %
3
1.69 %
164
92.13 %
16
8.99 %
11
6.18 %
0
0.00 %
PAR-OTHER
2
67
0.03 %
7
10.45 %
54
80.60 %
8
11.94 %
5
7.46 %
1
1.49 %
PAR-PERSIS
2
233
0.12 %
53
22.75 %
162
69.53 %
27
11.59 %
18
7.73 %
0
0.00 %
PAR-RECUR
42
7,106
3.56 %
231
3.25 %
6530
91.89 %
413
5.81 %
338
4.76 %
7
0.10 %
Wiltshire
PAR-CUL-P
1
219
0.11 %
9
4.11 %
205
93.61 %
8
3.65 %
5
2.28 %
0
0.00 %
PAR-OTHER
1
470
0.24 %
13
2.77 %
442
94.04 %
23
4.89 %
15
3.19 %
0
0.00 %
PAR-PERSIS
2
329
0.16 %
7
2.13 %
307
93.31 %
27
8.21 %
15
4.56 %
0
0.00 %
PAR-RECUR
45
8,174
4.09 %
375
4.59 %
7512
91.90 %
343
4.20 %
265
3.24 %
22
0.27 %
England - Edge
Berks
PAR-CHR
1
138
0.07 %
12
8.70 %
117
84.78 %
12
8.70 %
9
6.52 %
0
0.00 %
PAR-NEW-IN
6
397
0.20 %
25
6.30 %
356
89.67 %
17
4.28 %
13
3.27 %
3
0.76 %
PAR-RECUR
1
9
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
9
100.00 %
Bucks
PAR-NEW-IN
23
2,153
1.08 %
102
4.74 %
1944
90.29 %
125
5.81 %
105
4.88 %
2
0.09 %
PAR-RECUR
5
337
0.17 %
20
5.93 %
296
87.83 %
25
7.42 %
21
6.23 %
0
0.00 %
Cheshire
PAR-CUL-N
1
4
0.00 %
0
0.00 %
2
50.00 %
2
50.00 %
2
50.00 %
0
0.00 %
PAR-CUL-P
5
1,152
0.58 %
44
3.82 %
1084
94.10 %
50
4.34 %
24
2.08 %
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 2024 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-NEW-IN
2
1,061
0.53 %
32
3.02 %
792
74.65 %
287
27.05 %
237
22.34 %
0
0.00 %
PAR-OTHER
8
1,527
0.76 %
53
3.47 %
1429
93.58 %
56
3.67 %
45
2.95 %
0
0.00 %
PAR-PERSIS
19
2,239
1.12 %
132
5.90 %
1888
84.32 %
249
11.12 %
219
9.78 %
0
0.00 %
PAR-RECUR
7
1,677
0.84 %
80
4.77 %
1553
92.61 %
52
3.10 %
44
2.62 %
0
0.00 %
SER-FLEXI
8
1,397
0.70 %
47
3.36 %
1283
91.84 %
92
6.59 %
67
4.80 %
0
0.00 %
Derbyshire
PAR-CUL-N
1
11
0.01 %
0
0.00 %
11
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
6
124
0.06 %
3
2.42 %
107
86.29 %
16
12.90 %
14
11.29 %
0
0.00 %
PAR-OTHER
4
347
0.17 %
51
14.70 %
271
78.10 %
29
8.36 %
25
7.20 %
0
0.00 %
PAR-PERSIS
2
425
0.21 %
15
3.53 %
395
92.94 %
20
4.71 %
15
3.53 %
0
0.00 %
PAR-RECUR
10
1,470
0.74 %
36
2.45 %
1341
91.22 %
106
7.21 %
91
6.19 %
2
0.14 %
E Sussex
PAR-CUL-P
3
519
0.26 %
23
4.43 %
474
91.33 %
34
6.55 %
22
4.24 %
0
0.00 %
PAR-NEW-IN
17
1,769
0.89 %
88
4.97 %
1580
89.32 %
122
6.90 %
100
5.65 %
1
0.06 %
Hampshire
PAR-NEW-IN
9
575
0.29 %
23
4.00 %
521
90.61 %
45
7.83 %
30
5.22 %
1
0.17 %
Leics & Rut
PAR-NEW-IN
40
4,992
2.50 %
150
3.00 %
4475
89.64 %
429
8.59 %
354
7.09 %
13
0.26 %
Northants
PAR-NEW-IN
28
2,712
1.36 %
74
2.73 %
2448
90.27 %
190
7.01 %
162
5.97 %
28
1.03 %
PAR-RECUR
1
197
0.10 %
1
0.51 %
180
91.37 %
18
9.14 %
16
8.12 %
0
0.00 %
Notts
PAR-NEW-IN
11
876
0.44 %
31
3.54 %
772
88.13 %
77
8.79 %
73
8.33 %
0
0.00 %
Oxon
PAR-CHR
1
174
0.09 %
10
5.75 %
160
91.95 %
5
2.87 %
4
2.30 %
0
0.00 %
PAR-HERD-S
1
9
0.00 %
0
0.00 %
7
77.78 %
2
22.22 %
2
22.22 %
0
0.00 %
PAR-NEW-IN
17
1,359
0.68 %
47
3.46 %
1183
87.05 %
148
10.89 %
128
9.42 %
1
0.07 %
PAR-OTHER
3
361
0.18 %
29
8.03 %
324
89.75 %
9
2.49 %
8
2.22 %
0
0.00 %
PAR-PERSIS
2
784
0.39 %
32
4.08 %
728
92.86 %
40
5.10 %
24
3.06 %
0
0.00 %
PAR-RECUR
23
2,644
1.32 %
95
3.59 %
2440
92.28 %
129
4.88 %
105
3.97 %
4
0.15 %
Warks
PAR-CHR
2
38
0.02 %
7
18.42 %
30
78.95 %
2
5.26 %
1
2.63 %
0
0.00 %
PAR-HERD-S
2
80
0.04 %
6
7.50 %
67
83.75 %
8
10.00 %
7
8.75 %
0
0.00 %
PAR-OTHER
6
127
0.06 %
16
12.60 %
98
77.17 %
15
11.81 %
13
10.24 %
0
0.00 %
PAR-RECUR
10
1,278
0.64 %
59
4.62 %
1112
87.01 %
102
7.98 %
107
8.37 %
0
0.00 %
England - LRA
Beds
PAR-NEW-IN
2
33
0.02 %
2
6.06 %
9
27.27 %
5
15.15 %
5
15.15 %
17
51.52 %
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 2024 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Cumbria
PAR-NEW-IN
24
4,037
2.02 %
74
1.83 %
3495
86.57 %
181
4.48 %
150
3.72 %
318
7.88 %
SER-NSR
1
4
0.00 %
0
0.00 %
4
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-OTHER
1
7
0.00 %
0
0.00 %
7
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Durham
PAR-NEW-IN
4
109
0.05 %
3
2.75 %
95
87.16 %
8
7.34 %
7
6.42 %
4
3.67 %
Herts
PAR-NEW-IN
5
347
0.17 %
10
2.88 %
318
91.64 %
26
7.49 %
19
5.48 %
0
0.00 %
Humberside
PAR-NEW-IN
2
83
0.04 %
0
0.00 %
75
90.36 %
10
12.05 %
8
9.64 %
0
0.00 %
Kent
SER-OTHER
2
248
0.12 %
1
0.40 %
240
96.77 %
9
3.63 %
6
2.42 %
1
0.40 %
Lancashire
PAR-NEW-IN
7
1,254
0.63 %
53
4.23 %
1167
93.06 %
44
3.51 %
33
2.63 %
1
0.08 %
Lincs
PAR-CUL-P
1
4
0.00 %
0
0.00 %
3
75.00 %
1
25.00 %
1
25.00 %
0
0.00 %
PAR-NEW-IN
12
649
0.33 %
17
2.62 %
604
93.07 %
38
5.86 %
28
4.31 %
0
0.00 %
PAR-PERSIS
2
131
0.07 %
5
3.82 %
123
93.89 %
8
6.11 %
3
2.29 %
0
0.00 %
SER-FLEXI
6
375
0.19 %
5
1.33 %
314
83.73 %
11
2.93 %
6
1.60 %
50
13.33 %
Norfolk
PAR-NEW-IN
4
112
0.06 %
7
6.25 %
75
66.96 %
27
24.11 %
27
24.11 %
3
2.68 %
N Yorks
PAR-NEW-IN
5
581
0.29 %
7
1.20 %
538
92.60 %
40
6.88 %
35
6.02 %
1
0.17 %
W Sussex
PAR-NEW-IN
3
704
0.35 %
32
4.55 %
660
93.75 %
16
2.27 %
11
1.56 %
1
0.14 %
SER-OTHER
2
13
0.01 %
0
0.00 %
13
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
England
1014
129074
64.64 %
5899
4.57 %
114497
88.71 %
8755
6.78 %
7175
5.56 %
1503
1.16 %
Wales - High TB
Carms
PAR-HERD-S
2
37
0.02 %
0
0.00 %
34
91.89 %
3
8.11 %
3
8.11 %
0
0.00 %
PAR-IR-EX
11
38
0.02 %
11
28.95 %
23
60.53 %
4
10.53 %
4
10.53 %
0
0.00 %
PAR-IR-SEV
61
430
0.22 %
153
35.58 %
262
60.93 %
16
3.72 %
13
3.02 %
2
0.47 %
PAR-NEW-IN
1
21
0.01 %
1
4.76 %
19
90.48 %
2
9.52 %
1
4.76 %
0
0.00 %
PAR-OTHER
13
1,432
0.72 %
253
17.67 %
1140
79.61 %
58
4.05 %
38
2.65 %
1
0.07 %
PAR-PERSIS
38
5,189
2.60 %
341
6.57 %
4691
90.40 %
190
3.66 %
149
2.87 %
8
0.15 %
PAR-RAPID
55
199
0.10 %
84
42.21 %
112
56.28 %
7
3.52 %
3
1.51 %
0
0.00 %
PAR-RECUR
36
4,465
2.24 %
184
4.12 %
4131
92.52 %
211
4.73 %
148
3.31 %
2
0.04 %
SER-FLEXI
4
125
0.06 %
36
28.80 %
84
67.20 %
5
4.00 %
4
3.20 %
1
0.80 %
Ceredigion
PAR-HERD-S
1
35
0.02 %
6
17.14 %
27
77.14 %
2
5.71 %
2
5.71 %
0
0.00 %
PAR-IR-EX
7
31
0.02 %
16
51.61 %
15
48.39 %
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 2024 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-IR-SEV
19
154
0.08 %
70
45.45 %
82
53.25 %
1
0.65 %
1
0.65 %
1
0.65 %
PAR-PERSIS
8
619
0.31 %
56
9.05 %
522
84.33 %
48
7.75 %
40
6.46 %
1
0.16 %
PAR-RAPID
12
49
0.02 %
15
30.61 %
33
67.35 %
2
4.08 %
1
2.04 %
0
0.00 %
PAR-RECUR
8
637
0.32 %
33
5.18 %
572
89.80 %
39
6.12 %
31
4.87 %
1
0.16 %
Gwent
PAR-IR-EX
3
19
0.01 %
8
42.11 %
9
47.37 %
2
10.53 %
2
10.53 %
0
0.00 %
PAR-IR-SEV
10
104
0.05 %
36
34.62 %
68
65.38 %
1
0.96 %
1
0.96 %
0
0.00 %
PAR-OTHER
8
137
0.07 %
27
19.71 %
107
78.10 %
4
2.92 %
3
2.19 %
0
0.00 %
PAR-PERSIS
9
580
0.29 %
47
8.10 %
518
89.31 %
18
3.10 %
15
2.59 %
0
0.00 %
PAR-RAPID
25
103
0.05 %
43
41.75 %
58
56.31 %
3
2.91 %
2
1.94 %
0
0.00 %
PAR-RECUR
23
1,278
0.64 %
43
3.36 %
1174
91.86 %
71
5.56 %
61
4.77 %
0
0.00 %
SER-FLEXI
6
400
0.20 %
5
1.25 %
375
93.75 %
23
5.75 %
18
4.50 %
2
0.50 %
Pembs
PAR-IR-EX
33
142
0.07 %
64
45.07 %
73
51.41 %
5
3.52 %
5
3.52 %
0
0.00 %
PAR-IR-SEV
185
1,968
0.99 %
591
30.03 %
1293
65.70 %
99
5.03 %
81
4.12 %
3
0.15 %
PAR-OTHER
11
602
0.30 %
76
12.62 %
508
84.39 %
27
4.49 %
18
2.99 %
0
0.00 %
PAR-PERSIS
100
11,114
5.57 %
656
5.90 %
9918
89.24 %
529
4.76 %
400
3.60 %
140
1.26 %
PAR-RAPID
81
252
0.13 %
75
29.76 %
167
66.27 %
11
4.37 %
10
3.97 %
0
0.00 %
PAR-RECUR
58
5,735
2.87 %
272
4.74 %
5190
90.50 %
341
5.95 %
261
4.55 %
12
0.21 %
SER-FLEXI
18
1,799
0.90 %
107
5.95 %
1554
86.38 %
157
8.73 %
136
7.56 %
2
0.11 %
Powys
PAR-IR-EX
12
98
0.05 %
39
39.80 %
57
58.16 %
7
7.14 %
2
2.04 %
0
0.00 %
PAR-IR-SEV
38
340
0.17 %
84
24.71 %
239
70.29 %
18
5.29 %
17
5.00 %
0
0.00 %
PAR-OTHER
3
75
0.04 %
2
2.67 %
68
90.67 %
7
9.33 %
4
5.33 %
1
1.33 %
PAR-PERSIS
9
1,078
0.54 %
71
6.59 %
940
87.20 %
81
7.51 %
67
6.22 %
0
0.00 %
PAR-RAPID
23
41
0.02 %
11
26.83 %
30
73.17 %
1
2.44 %
0
0.00 %
0
0.00 %
PAR-RECUR
18
1,155
0.58 %
64
5.54 %
1040
90.04 %
61
5.28 %
49
4.24 %
2
0.17 %
SER-FLEXI
2
177
0.09 %
26
14.69 %
98
55.37 %
60
33.90 %
53
29.94 %
0
0.00 %
S Wales
PAR-IR-SEV
3
23
0.01 %
6
26.09 %
16
69.57 %
1
4.35 %
1
4.35 %
0
0.00 %
PAR-PERSIS
1
228
0.11 %
20
8.77 %
196
85.96 %
12
5.26 %
12
5.26 %
0
0.00 %
PAR-RAPID
2
3
0.00 %
0
0.00 %
3
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 2024 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-RECUR
2
28
0.01 %
4
14.29 %
22
78.57 %
1
3.57 %
1
3.57 %
1
3.57 %
W Glamorgan
PAR-OTHER
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
2
3
0.00 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Intermediate TB
Carms
PAR-OTHER
3
338
0.17 %
10
2.96 %
321
94.97 %
10
2.96 %
7
2.07 %
0
0.00 %
PAR-PERSIS
2
2
0.00 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
2
3
0.00 %
1
33.33 %
1
33.33 %
1
33.33 %
1
33.33 %
0
0.00 %
PAR-RECUR
2
63
0.03 %
4
6.35 %
57
90.48 %
2
3.17 %
2
3.17 %
0
0.00 %
Ceredigion
PAR-IR-EX
2
36
0.02 %
27
75.00 %
9
25.00 %
1
2.78 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
3
3
0.00 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
5
10
0.01 %
4
40.00 %
3
30.00 %
2
20.00 %
2
20.00 %
1
10.00 %
Mid Glamorgan
PAR-IR-SEV
3
12
0.01 %
3
25.00 %
6
50.00 %
3
25.00 %
3
25.00 %
0
0.00 %
PAR-PERSIS
3
50
0.03 %
1
2.00 %
36
72.00 %
14
28.00 %
13
26.00 %
0
0.00 %
PAR-RAPID
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
2
88
0.04 %
3
3.41 %
83
94.32 %
3
3.41 %
2
2.27 %
0
0.00 %
NE Wales
PAR-IR-EX
18
46
0.02 %
12
26.09 %
33
71.74 %
1
2.17 %
1
2.17 %
0
0.00 %
PAR-IR-SEV
49
244
0.12 %
67
27.46 %
165
67.62 %
12
4.92 %
12
4.92 %
0
0.00 %
PAR-NEW-IN
79
5,505
2.76 %
174
3.16 %
5026
91.30 %
372
6.76 %
291
5.29 %
14
0.25 %
PAR-OTHER
4
222
0.11 %
2
0.90 %
213
95.95 %
8
3.60 %
7
3.15 %
0
0.00 %
PAR-PERSIS
31
2,482
1.24 %
127
5.12 %
2263
91.18 %
103
4.15 %
83
3.34 %
9
0.36 %
PAR-RAPID
12
24
0.01 %
6
25.00 %
18
75.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
8
719
0.36 %
19
2.64 %
650
90.40 %
52
7.23 %
50
6.95 %
0
0.00 %
SER-FLEXI
8
786
0.39 %
42
5.34 %
714
90.84 %
39
4.96 %
30
3.82 %
0
0.00 %
Powys
PAR-IR-SEV
7
35
0.02 %
8
22.86 %
27
77.14 %
1
2.86 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
21
3,687
1.85 %
129
3.50 %
3443
93.38 %
144
3.91 %
108
2.93 %
7
0.19 %
PAR-OTHER
1
2
0.00 %
0
0.00 %
2
100.00 %
1
50.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
4
24
0.01 %
6
25.00 %
15
62.50 %
3
12.50 %
3
12.50 %
0
0.00 %
PAR-RECUR
7
626
0.31 %
31
4.95 %
566
90.42 %
38
6.07 %
29
4.63 %
0
0.00 %
S Glamorgan
PAR-RAPID
7
26
0.01 %
8
30.77 %
16
61.54 %
3
11.54 %
2
7.69 %
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 2024 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
SER-FLEXI
1
75
0.04 %
24
32.00 %
49
65.33 %
2
2.67 %
2
2.67 %
0
0.00 %
Wales - Low TB
Conwy
PAR-NEW-IN
1
28
0.01 %
0
0.00 %
28
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Gwynedd
PAR-IR-EX
3
6
0.00 %
1
16.67 %
4
66.67 %
1
16.67 %
1
16.67 %
0
0.00 %
PAR-IR-SEV
4
15
0.01 %
6
40.00 %
8
53.33 %
1
6.67 %
1
6.67 %
0
0.00 %
PAR-NEW-IN
65
3,988
2.00 %
145
3.64 %
3594
90.12 %
294
7.37 %
242
6.07 %
7
0.18 %
PAR-RAPID
4
4
0.00 %
0
0.00 %
1
25.00 %
3
75.00 %
3
75.00 %
0
0.00 %
PAR-RECUR
1
18
0.01 %
0
0.00 %
18
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
4
19
0.01 %
5
26.32 %
12
63.16 %
3
15.79 %
2
10.53 %
0
0.00 %
NE Wales
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
11
79
0.04 %
28
35.44 %
47
59.49 %
4
5.06 %
4
5.06 %
0
0.00 %
PAR-NEW-IN
39
3,902
1.95 %
106
2.72 %
3511
89.98 %
328
8.41 %
279
7.15 %
6
0.15 %
PAR-PERSIS
2
59
0.03 %
5
8.47 %
53
89.83 %
1
1.69 %
1
1.69 %
0
0.00 %
PAR-RAPID
3
11
0.01 %
3
27.27 %
6
54.55 %
2
18.18 %
2
18.18 %
0
0.00 %
PAR-RECUR
1
171
0.09 %
3
1.75 %
148
86.55 %
19
11.11 %
19
11.11 %
1
0.58 %
SER-FLEXI
5
492
0.25 %
44
8.94 %
411
83.54 %
41
8.33 %
37
7.52 %
0
0.00 %
Wales
1391
64847
32.47 %
4694
7.24 %
57033
87.95 %
3640
5.61 %
2896
4.47 %
225
0.35 %
Scotland - Scotland
Ayrshire
PAR-NEW-IN
5
840
0.42 %
37
4.40 %
777
92.50 %
25
2.98 %
22
2.62 %
4
0.48 %
Kirkcudbright
PAR-NEW-IN
10
3,147
1.58 %
75
2.38 %
2945
93.58 %
168
5.34 %
125
3.97 %
2
0.06 %
West lothian
PAR-NEW-IN
1
27
0.01 %
0
0.00 %
16
59.26 %
11
40.74 %
11
40.74 %
0
0.00 %
Wigtown
PAR-NEW-IN
11
1,752
0.88 %
40
2.28 %
1591
90.81 %
156
8.90 %
119
6.79 %
2
0.11 %
Scotland
27
5766
2.89 %
152
2.64 %
5329
92.42 %
360
6.24 %
277
4.80 %
8
0.14 %
Grand Total
Sum:
xx-xxxx-xxxx
10745
176859
12755
10348
1736
*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 November 2024
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
98
13254
97.4%
611
4.6%
11762
88.7%
673
5.1%
561
4.2%
320
2.4%
Serial/Extended
5
358
2.6%
48
13.4%
298
83.2%
17
4.7%
12
3.4%
0
0.0 %
Total
103
13612
100.0%
659
4.8%
12060
88.6%
690
5.1%
573
4.2%
320
2.4%
Scotland
Parallel
1
18
100.0%
2
11.1%
15
83.3%
1
5.6%
1
5.6%
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
1
18
100.0%
2
11.1%
15
83.3%
1
5.6%
1
5.6%
0
0.0 %
Wales
Parallel
141
4982
98.8%
367
7.4%
4401
88.3%
248
5.0%
204
4.1%
10
0.2%
Serial/Extended
3
59
1.2%
11
18.6%
46
78.0%
3
5.1%
2
3.4%
0
0.0 %
Total
144
5041
100.0%
378
7.5%
4447
88.2%
251
5.0%
206
4.1%
10
0.2%
GB
Parallel
240
18254
97.8%
980
5.4%
16178
88.6%
922
5.1%
766
4.2%
330
1.8%
Serial/Extended
8
417
2.2%
59
14.1%
344
82.5%
20
4.8%
14
3.4%
0
0.0 %
Total
248
18671
100.0%
1039
5.6%
16522
88.5%
942
5.0%
780
4.2%
330
1.8%
103.00
144.00
1.00
* 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 2024)
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
963 125336
97.1%
5649
4.5% 111230
88.7%
8529
6.8%
7006
5.6%
1451
1.2%
Serial/Extended
51
3738
2.9%
250
6.7%
3267
87.4%
226
6.0%
169
4.5%
52
1.4%
Total
1014 129074
100.0%
5899
4.6% 114497
88.7%
8755
6.8%
7175
5.6%
1503
1.2%
Scotland
Parallel
27
5766
100.0%
152
2.6%
5329
92.4%
360
6.2%
277
4.8%
8
0.1%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
27
5766
100.0%
152
2.6%
5329
92.4%
360
6.2%
277
4.8%
8
0.1%
Wales
Parallel
1343
60974
94.0%
4405
7.2%
53736
88.1%
3310
5.4%
2614
4.3%
220
0.4%
Serial/Extended
48
3873
6.0%
289
7.5%
3297
85.1%
330
8.5%
282
7.3%
5
0.1%
Total
1391
64847
100.0%
4694
7.2%
57033
88.0%
3640
5.6%
2896
4.5%
225
0.3%
GB
Parallel
xx-xxxx-xxxx
96.2% 10206
5.3% 170295
88.7%
12199
6.4%
9897
5.2%
1679
0.9%
Serial/Extended
99
7611
3.8%
539
7.1%
6564
86.2%
556
7.3%
451
5.9%
57
0.7%
Total
xx-xxxx-xxxx
100.0% 10745
5.4% 176859
88.6%
12755
6.4%
10348
5.2%
1736
0.9%
#######
#######
27.00
* 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
8
417
2.2%
59
14.1%
344
82.5%
20
4.8 %
14
3.4 %
0
Parallel – chronic breakdown
2
85
0.5%
3
3.5%
71
83.5%
12
14.1 %
11
12.9 %
0
Parallel - Herd or Group Slaughter
2
80
0.4%
6
7.5%
67
83.8%
8
10.0 %
7
8.8 %
0
Parallel - IRs in Exit Strategy for persistent her
7
27
0.1%
10
37.0%
15
55.6%
2
7.4 %
2
7.4 %
0
Parallel New Infection
50
5558
29.8%
181
3.3%
4862
87.5%
244
4.4 %
199
3.6 %
316
5.7 %
Parallel - new infection cull area
1
11
0.1%
0
0.0 %
11
100.0%
0
0
0
Parallel - Other
10
1090
5.8%
25
2.3%
1022
93.8%
51
4.7 %
43
3.9 %
0
Parallel Persistent Infection
25
2219
11.9%
204
9.2%
1926
86.8%
109
4.9 %
88
4.0 %
1
0.0 %
Parallel - persistent infection cull area
1
4
0.0%
0
0.0 %
3
75.0%
1
25.0 %
1
25.0 %
0
Parallel - Rapid Testing Two-times IRs
24
55
0.3%
18
32.7%
36
65.5%
2
3.6 %
1
1.8 %
0
Parallel - Recurrent breakdowns
74
8731
46.8%
424
4.9%
7899
90.5%
472
5.4 %
396
4.5 %
12
0.1 %
Parallel - severe IRs - in persistent herds
44
394
2.1%
109
27.7%
266
67.5%
21
5.3 %
18
4.6 %
1
0.3 %
Total
248
18671
100.0%
1039
5.6%
16522
88.5%
942
5.0 %
780
4.2 %
330
1.8 %
Table 4a. Summaryof IFN Gamma results by submission reason (November 2024)
England - HRA
Extended Flexible IFN-GAMMA test
3
306
1.6%
47
15.4%
252
82.4%
11
3.6 %
7
2.3 %
0
Parallel – chronic breakdown
2
85
0.5%
3
3.5%
71
83.5%
12
14.1 %
11
12.9 %
0
Parallel - Other
5
541
2.9%
14
2.6%
509
94.1%
21
3.9 %
18
3.3 %
0
Parallel Persistent Infection
2
665
3.6%
70
10.5%
577
86.8%
28
4.2 %
18
2.7 %
0
Parallel - Recurrent breakdowns
50
6493
34.8%
312
4.8%
5858
90.2%
368
5.7 %
312
4.8 %
11
0.2 %
England - HRA
62
8090
43.3%
446
5.5%
7267
89.8%
440
5.4 %
366
4.5 %
11
0.1 %
England - Edge
Parallel - Herd or Group Slaughter
2
80
0.4%
6
7.5%
67
83.8%
8
10.0 %
7
8.8 %
0
Parallel New Infection
18
2058
11.0%
82
4.0%
1864
90.6%
130
6.3 %
110
5.3 %
2
0.1 %
Parallel - new infection cull area
1
11
0.1%
0
0.0 %
11
100.0%
0
0
0
Parallel - Other
2
328
1.8%
9
2.7%
301
91.8%
22
6.7 %
18
5.5 %
0
Parallel - Recurrent breakdowns
9
1703
9.1%
92
5.4%
1567
92.0%
56
3.3 %
44
2.6 %
0
England - Edge
32
4180
22.4%
189
4.5%
3810
91.1%
216
5.2 %
179
4.3 %
2
0.0 %
England - LRA
Extended Flexible IFN-GAMMA test
2
52
0.3%
1
1.9%
46
88.5%
6
11.5 %
5
9.6 %
0
Parallel New Infection
6
1286
6.9%
23
1.8%
934
72.6%
27
2.1 %
22
1.7 %
307
23.9 %
Parallel - persistent infection cull area
1
4
0.0%
0
0.0 %
3
75.0%
1
25.0 %
1
25.0 %
0
England - LRA
9
1342
7.2%
24
1.8%
983
73.2%
34
2.5 %
28
2.1 %
307
22.9 %
Wales - High TB
Parallel - IRs in Exit Strategy for persistent her
5
13
0.1%
5
38.5%
7
53.8%
1
7.7 %
1
7.7 %
0
Parallel Persistent Infection
22
1469
7.9%
119
8.1%
1281
87.2%
79
5.4 %
68
4.6 %
1
0.1 %
Parallel - Rapid Testing Two-times IRs
20
43
0.2%
16
37.2%
26
60.5%
2
4.7 %
1
2.3 %
0
Parallel - Recurrent breakdowns
13
320
1.7%
15
4.7%
273
85.3%
35
10.9 %
31
9.7 %
1
0.3 %
Parallel - severe IRs - in persistent herds
32
312
1.7%
88
28.2%
208
66.7%
18
5.8 %
15
4.8 %
1
0.3 %
Wales - High TB
92
2157
11.6%
243
11.3%
1795
83.2%
135
6.3 %
116
5.4 %
3
0.1 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
1
43
0.2%
7
16.3%
36
83.7%
0
0
0
Parallel - IRs in Exit Strategy for persistent her
2
14
0.1%
5
35.7%
8
57.1%
1
7.1 %
1
7.1 %
0
Parallel New Infection
17
1744
9.3%
61
3.5%
1617
92.7%
77
4.4 %
61
3.5 %
5
0.3 %
Parallel - Other
3
221
1.2%
2
0.9%
212
95.9%
8
3.6 %
7
3.2 %
0
Parallel Persistent Infection
1
85
0.5%
15
17.6%
68
80.0%
2
2.4 %
2
2.4 %
0
Parallel - Rapid Testing Two-times IRs
4
12
0.1%
2
16.7%
10
83.3%
0
0
0
Parallel - Recurrent breakdowns
2
215
1.2%
5
2.3%
201
93.5%
13
6.0 %
9
4.2 %
0
Parallel - severe IRs - in persistent herds
9
51
0.3%
12
23.5%
38
74.5%
1
2.0 %
1
2.0 %
0
Wales - Intermediate TB
39
2385
12.8%
109
4.6%
2190
91.8%
102
4.3 %
81
3.4 %
5
0.2 %
Wales - Low TB
Extended Flexible IFN-GAMMA test
2
16
0.1%
4
25.0%
10
62.5%
3
18.8 %
2
12.5 %
0
Parallel New Infection
8
452
2.4%
13
2.9%
432
95.6%
9
2.0 %
5
1.1 %
2
0.4 %
Parallel - severe IRs - in persistent herds
3
31
0.2%
9
29.0%
20
64.5%
2
6.5 %
2
6.5 %
0
Wales - Low TB
13
499
2.7%
26
5.2%
462
92.6%
14
2.8 %
9
1.8 %
2
0.4 %
Scotland - Scotland
Parallel New Infection
1
18
0.1%
2
11.1%
15
83.3%
1
5.6 %
1
5.6 %
0
Scotland - Scotland
1
18
0.1%
2
11.1%
15
83.3%
1
5.6 %
1
5.6 %
0

Submission Reason
No
submissions Samples
Gamma Positive
Gamma Negatives
Retest
Resample
Reject
n
% of total
n
%
n
%
n
%
n
%
n
%
GB
Extended Flexible IFN-GAMMA test
93
7339
3.7%
538
7.3%
6300
85.8%
547
7.5 %
445
6.1 %
56
0.8 %
Parallel – chronic breakdown
23
1630
0.8%
99
6.1%
1430
87.7%
119
7.3 %
100
6.1 %
1
0.1 %
Parallel - Herd or Group Slaughter
6
161
0.1%
12
7.5%
135
83.9%
15
9.3 %
14
8.7 %
0
Parallel - IRs in Exit Strategy for persistent herds
90
417
0.2%
178
42.7%
224
53.7%
21
5.0 %
15
3.6 %
0
Parallel New Infection
460
46824
23.4%
1487
3.2%
42164
90.0%
3351
7.2 %
2737
5.8 %
436
0.9 %
Parallel - new infection cull area
8
397
0.2%
26
6.5%
345
86.9%
31
7.8 %
26
6.5 %
0
Parallel - Other
104
8999
4.5%
732
8.1%
7857
87.3%
514
5.7 %
406
4.5 %
4
0.0 %
Parallel Persistent Infection
282
33929
17.0%
2162
6.4%
30087
88.7%
1914
5.6 %
1516
4.5 %
164
0.5 %
Parallel - persistent infection cull area
36
5414
2.7%
224
4.1%
4391
81.1%
388
7.2 %
303
5.6 %
496
9.2 %
Parallel - Rapid Testing Two-times IRs
238
754
0.4%
257
34.1%
467
61.9%
38
5.0 %
29
3.8 %
1
0.1 %
Parallel - Recurrent breakdowns
693
90144
45.1%
3976
4.4%
80980
89.8%
5651
6.3 %
4617
5.1 %
571
0.6 %
Parallel - severe IRs - in persistent herds
393
3407
1.7%
1053
30.9%
2215
65.0%
157
4.6 %
134
3.9 %
6
0.2 %
Serial - Other
5
268
0.1%
1
0.4%
260
97.0%
9
3.4 %
6
2.2 %
1
0.4 %
Serial - Suspected NSR Herd
1
4
0.0%
0
0.0 %
4
100.0%
0
0
0
Total
xx-xxxx-xxxx
100.0%
10745
5.4%
176859
88.6%
12755
6.4 %
10348
5.2 %
1736
0.9 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2024)
England - HRA
Extended Flexible IFN-GAMMA test
31
xx-xxxx-xxxx
0.8%
197
11.6%
1406
83.0%
114
6.7 %
90
5.3 %
1
0.1 %
Parallel – chronic breakdown
19
1280
0.6%
70
5.5%
1123
87.7%
100
7.8 %
86
6.7 %
1
0.1 %
Parallel - new infection cull area
6
382
0.2%
26
6.8%
332
86.9%
29
7.6 %
24
6.3 %
0
Parallel - Other
39
3828
1.9%
212
5.5%
3376
88.2%
290
7.6 %
238
6.2 %
2
0.1 %
Parallel Persistent Infection
54
8949
4.5%
653
7.3%
7815
87.3%
601
6.7 %
475
5.3 %
6
0.1 %
Parallel - persistent infection cull area
27
3739
1.9%
157
4.2%
2830
75.7%
303
8.1 %
256
6.8 %
496
13.3 %
Parallel - Recurrent breakdowns
470
67549
33.8%
3025
4.5%
60407
89.4%
4381
6.5 %
3580
5.3 %
537
0.8 %
England - Edge
Extended Flexible IFN-GAMMA test
8
1397
0.7%
47
3.4%
1283
91.8%
92
6.6 %
67
4.8 %
0
Parallel – chronic breakdown
4
350
0.2%
29
8.3%
307
87.7%
19
5.4 %
14
4.0 %
0
Parallel - Herd or Group Slaughter
3
89
0.0%
6
6.7%
74
83.1%
10
11.2 %
9
10.1 %
0
Parallel New Infection
159
16018
8.0%
575
3.6%
14178
88.5%
1456
9.1 %
1216
7.6 %
49
0.3 %
Parallel - new infection cull area
2
15
0.0%
0
0.0 %
13
86.7%
2
13.3 %
2
13.3 %
0

Table 4b. Summary of IFN Gamma results by submission reason (Total 2024) Cont.
Parallel - Other
21
2362
1.2%
149
6.3%
2122
89.8%
109
4.6 %
91
3.9 %
0
Parallel Persistent Infection
23
3448
1.7%
179
5.2%
3011
87.3%
309
9.0 %
258
7.5 %
0
Parallel - persistent infection cull area
8
1671
0.8%
67
4.0%
1558
93.2%
84
5.0 %
46
2.8 %
0
Parallel - Recurrent breakdowns
57
7612
3.8%
291
3.8%
6922
90.9%
432
5.7 %
384
5.0 %
15
0.2 %
England - LRA
Extended Flexible IFN-GAMMA test
6
375
0.2%
5
1.3%
314
83.7%
11
2.9 %
6
1.6 %
50
13.3 %
Parallel New Infection
68
7909
4.0%
205
2.6%
7036
89.0%
395
5.0 %
323
4.1 %
345
4.4 %
Parallel Persistent Infection
2
131
0.1%
5
3.8%
123
93.9%
8
6.1 %
3
2.3 %
0
Parallel - persistent infection cull area
1
4
0.0%
0
0.0 %
3
75.0%
1
25.0 %
1
25.0 %
0
Serial - Other
5
268
0.1%
1
0.4%
260
97.0%
9
3.4 %
6
2.2 %
1
0.4 %
Serial - Suspected NSR Herd
1
4
0.0%
0
0.0 %
4
100.0%
0
0
0
England
1014 129074
64.6%
5899
4.6%
114497
88.7%
8755
6.8 %
7175
5.6 %
1503
1.2 %
Wales - High TB
Extended Flexible IFN-GAMMA test
30
2501
1.3%
174
7.0%
2111
84.4%
245
9.8 %
211
8.4 %
5
0.2 %
Parallel - Herd or Group Slaughter
3
72
0.0%
6
8.3%
61
84.7%
5
6.9 %
5
6.9 %
0
Parallel - IRs in Exit Strategy for persistent herd
66
328
0.2%
138
42.1%
177
54.0%
18
5.5 %
13
4.0 %
0
Parallel New Infection
1
21
0.0%
1
4.8%
19
90.5%
2
9.5 %
1
4.8 %
0
Parallel - Other
36
2247
1.1%
359
16.0%
1823
81.1%
96
4.3 %
63
2.8 %
2
0.1 %
Parallel Persistent Infection
165
18808
9.4%
1191
6.3%
16785
89.2%
878
4.7 %
683
3.6 %
149
0.8 %
Parallel - Rapid Testing Two-times IRs
200
650
0.3%
229
35.2%
405
62.3%
24
3.7 %
16
2.5 %
0
Parallel - Recurrent breakdowns
145
13298
6.7%
600
4.5%
12129
91.2%
724
5.4 %
551
4.1 %
18
0.1 %
Parallel - severe IRs - in persistent herds
316
3019
1.5%
940
31.1%
1960
64.9%
136
4.5 %
114
3.8 %
6
0.2 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
9
861
0.4%
66
7.7%
763
88.6%
41
4.8 %
32
3.7 %
0
Parallel - IRs in Exit Strategy for persistent herd
20
82
0.0%
39
47.6%
42
51.2%
2
2.4 %
1
1.2 %
0
Parallel New Infection
100
9192
4.6%
303
3.3%
8469
92.1%
516
5.6 %
399
4.3 %
21
0.2 %
Parallel - Other
8
562
0.3%
12
2.1%
536
95.4%
19
3.4 %
14
2.5 %
0
Parallel Persistent Infection
36
2534
1.3%
129
5.1%
2300
90.8%
117
4.6 %
96
3.8 %
9
0.4 %
Parallel - Rapid Testing Two-times IRs
31
89
0.0%
25
28.1%
55
61.8%
9
10.1 %
8
9.0 %
1
1.1 %
Parallel - Recurrent breakdowns
19
1496
0.7%
57
3.8%
1356
90.6%
95
6.4 %
83
5.5 %
0
Parallel - severe IRs - in persistent herds
62
294
0.1%
79
26.9%
200
68.0%
16
5.4 %
15
5.1 %
0
Wales - Low TB
Extended Flexible IFN-GAMMA test
9
511
0.3%
49
9.6%
423
82.8%
44
8.6 %
39
7.6 %
0
Parallel - IRs in Exit Strategy for persistent herd
4
7
0.0%
1
14.3%
5
71.4%
1
14.3 %
1
14.3 %
0
Parallel New Infection
105
7918
4.0%
251
3.2%
7133
90.1%
622
7.9 %
521
6.6 %
13
0.2 %
Parallel Persistent Infection
2
59
0.0%
5
8.5%
53
89.8%
1
1.7 %
1
1.7 %
0
Parallel - Rapid Testing Two-times IRs
7
15
0.0%
3
20.0%
7
46.7%
5
33.3 %
5
33.3 %
0

Table 4b. Summary of IFN Gamma results by submission reason (Total 2024) Cont.
Parallel - Recurrent breakdowns
2
189
0.1%
3
1.6%
166
87.8%
19
10.1 %
19
10.1 %
1
0.5 %
Parallel - severe IRs - in persistent herds
15
94
0.0%
34
36.2%
55
58.5%
5
5.3 %
5
5.3 %
0
Wales
1391
64847
32.5%
4694
7.2%
57033
88.0%
3640
5.6 %
2896
4.5 %
225
0.3 %
Scotland - Scotland
Parallel New Infection
27
5766
2.9%
152
2.6%
5329
92.4%
360
6.2 %
277
4.8 %
8
0.1 %
Scotland
27
5766
2.9%
152
2.6%
5329
92.4%
360
6.2 %
277
4.8 %
8
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
2023 December
183
14037
114
892
5
0
0
0
0
69
3
0
18
0
753
0
44
0
0
2024 January
234
21995
171
1438
1
26
0
0
0
0
54
3
1
6
0
1254
1
91
0
1
February
257
20510
159
1189
13
0
0
0
0
31
1
0
12
0
1021
1
109
1
0
March
215
19876
142
1054
15
0
0
0
0
70
2
0
26
0
879
0
60
0
0
April
237
18969
146
1092
4
0
0
0
0
44
4
0
11
0
958
0
71
0
0
May
207
15411
129
733
0
0
0
0
0
11
3
0
9
0
657
0
53
0
0
June
197
18101
133
797
9
0
0
0
0
32
1
0
19
0
720
0
2
0
14
July
223
19494
124
825
7
0
0
0
0
25
4
0
20
0
753
1
7
1
6
August
197
14635
123
639
25
0
0
0
0
21
1
0
17
1
551
1
21
0
0
September
174
11490
104
803
22
0
0
0
0
88
2
1
8
6
671
0
5
0
0
October
243
20535
159
1136
61
0
0
0
0
35
0
24
11
1
987
5
14
0
0
November
248
18671
155
1039
201
488
0
0
0
0
2
0
1
0
0
83
0
0
0
0
Totals (last
12 months)
2615
213724
1659
11637
202
675
0
0
0
0
482
24
27
157
8
9287
9
477
2
21
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
1084
138416
736
6395
441
0
0
0
0
413
7
3
86
1
5052
3
114
1
0
Scotland
30
6066
26
159
1
0
0
0
0
0
1
9
7
0
129
5
6
0
0
Wales
1501
69242
897
5083
233
0
0
0
0
69
16
15
64
7
4106
1
357
1
21
Totals
2615
213724
1659
11637
675
0
0
0
0
482
24
27
157
8
9287
9
477
2
21
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.
133
129
97
132
103
165
90
130
111
158
99
114
139
109
130
144
98
107
80
100
81
120
91
109
105
176
118
147
107
159
85
118
96
112
95
94
101
108
112
140
109
112
114
139
93
157
69
114
63
171
98
159
73
142
91
146
78
129
64
133
99
124
74
123
70
104
84
159
93
155
0
50
100
150
200
250
300
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
October
November
2022
2023
2024
IFNg Positive herds
IFNg Negative herds
17250
852
xx-xxxx-xxxx
966
21357
1108
14149
687
22824
918
17067
590
14705
485
18751
758
15643
672
15663
620
15019
673
12991
545
21877
1138
16071
1036
18641
867
15246
782
13167
582
15789
524
17758
597
19561
867
17206
638
17659
825
20756
1277
13035
892
20308
1434
18508
1189
18373
1054
17402
1092
14468
733
17182
797
18485
825
13771
639
10556
803
19096
1136
17063
1039
0
5000
10000
15000
20000
25000
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
October
November
2022
2023
2024
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
10
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
October
November
2022
2023
2024
%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
5
10
15
20
25
30
35
Wiltshire
S Wales
Somerset excl N
S Glamorgan
Pembs
Notts
NE Wales
Lincs
Lancashire
Hampshire
Gwent
Dorset
Derbyshire
Corn & Scilly
Ceredigion
Bucks
Avon
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during November 2024 (% submission per
County)
County
%Resampled %Retested
Avon
15.00 %
15.00 %
Ayrshire
5.56 %
5.56 %
Bucks
3.65 %
4.08 %
Carms
3.81 %
4.77 %
Ceredigion
5.45 %
7.27 %
Cheshire
3.51 %
4.37 %
Corn & Scilly
4.92 %
5.19 %
Cumbria
0.33 %
0.65 %
Derbyshire
7.25 %
10.14 %
Devon
5.68 %
6.89 %
Dorset
2.31 %
3.75 %
Gloucs
4.00 %
Gwent
4.76 %
6.80 %
Gwynedd
1.30 %
2.39 %
Hampshire
1.72 %
12.07 %
Heref
4.81 %
5.32 %
Lancashire
2.31 %
2.85 %
Leics & Rut
7.53 %
9.68 %
Lincs
7.74 %
8.33 %
Mid Glamorgan
NE Wales
3.06 %
3.62 %
Northants
9.26 %
11.11 %
Notts
4.52 %
4.79 %
Oxon
4.43 %
5.19 %
Pembs
7.06 %
7.93 %
Powys
4.36 %
5.47 %
S Glamorgan
Shropshire
7.52 %
8.46 %
Somerset excl
6.47 %
7.86 %
Staffs
2.75 %
3.41 %
S Wales
5.26 %
5.26 %
Warks
8.75 %
10.00 %
Wiltshire
2.57 %
3.59 %

Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
13137
659
5.0%
13612
659
4.8%
Wales
4947
378
7.6%
5041
378
7.5%
Scotland
18
2
11.1%
18
2
11.1%
GB
18102
1039
5.7%
18671
1039
5.6%
Table 6a (i): Number of animals and submissions tested in November 2024
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
118906
5895
5.0%
129074
5899
4.6%
Wales
60729
4692
7.7%
64847
4694
7.2%
Scotland
5545
152
2.7%
5766
152
2.6%
GB
185177
10739
5.8%
199687
10745
5.4%
Table 6b (i): Number of animals and submissions tested in 2024 Up to end of November
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
14982
837
5.6%
15067
837
5.6%
Wales
6624
439
6.6%
6796
439
6.5%
Scotland
427
1
0.2%
427
1
0.2%
GB
22033
1277
5.8%
22290
1277
5.7%
Table 6a (ii): Number of animals and submissions tested in November 2023
Table 6b (ii): Number of animals and submissions tested in 2023 Up to end of November
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
126269
5544
4.4%
134916
5545
4.1%
Wales
55369
3125
5.6%
59406
3125
5.3%
Scotland
7433
463
6.2%
11482
463
4.0%
GB
189053
9132
4.8%
205804
9133
4.4%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Devon
PRV-SP
1
2
0
0
Total
1
2
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 November 2024
Table 7b Number of private samples 2024
* Test type
Num
Submissions
Num
Samples
Num
Positives
Private
% Positive
Cornwall and Isles of Scilly
PRV-SE
2
19
0
0
PRV-SP
2
4
0
0
Devon
PRV-SE
5
138
9
6.52 %
PRV-SP
1
2
0
0
Dorset
PRV-SP
1
1
0
0
East Sussex
PRV-SP
1
1
0
0
Gloucestershire
PRV-SE
1
78
7
8.97 %
North Yorkshire
PRV-SP
1
1
0
0
Oxfordshire
PRV-SE
1
5
0
0
Shropshire
PRV-SP
1
4
0
0
Wiltshire
PRV-SP
1
1
0
0
Worcestershire
PRV-SE
1
1
0
0
PRV-SP
1
1
0
0
Total
19
256
16
6.25 %

Country
County
Test Reason
Num
Submissions
Num Samples
Tested
Num Positive
Samples
% Positive
England
Somerset excl North
BOV-P
1
69
1
1.4%
England
1
69
1
1.4%
Wales
Carmarthenshire
BOV-IR-C
7
49
15
30.6%
Ceredigion
BOV-IR-C
4
33
20
60.6%
North East Wales
BOV-IR-C
6
43
10
23.3%
BOV-IR-EX
2
11
2
18.2%
North West Wales
BOV-OTHER
1
9
0
0
Pembrokeshire
BOV-IR-C
22
196
29
14.8%
BOV-IR-EX
1
1
0
0
BOV-P
1
64
1
1.6%
Powys
BOV-IR-C
6
93
5
5.4%
BOV-IR-EX
3
5
2
40.0%
South Wales
BOV-IR-C
2
18
3
16.7%
Wales
55
522
87
16.7%
All GB
56
591
88
14.9 %
Table 8a Number of Cattle Antibody Tests November 2024
Table 8b Number of Cattle Antibody Tests 2024
Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
England
Cheshire
BOV-P
1
7
1
14.3%
Cumbria
BOV-OTHER
5
1,043
55
5.3%
Devon
BOV-OTHER
3
422
27
6.4%
Northern Somerset &
South
Gloucestershire
BOV-P
1
33
1
3.0%
Oxfordshire
BOV-P
1
114
10
8.8%
Somerset excl North
BOV-P
1
69
1
1.4%
England
12
1,688
95
5.6%
Wales
Carmarthenshire
BOV-IR-C
53
470
95
20.2%
BOV-IR-EX
8
34
10
29.4%
BOV-OTHER
2
215
13
6.0%
BOV-P
1
57
0
0
Ceredigion
BOV-IR-C
25
199
60
30.2%
BOV-IR-EX
8
65
17
26.2%
North East Wales
BOV-IR-C
36
246
57
23.2%
BOV-IR-EX
7
25
5
20.0%
BOV-OTHER
5
433
15
3.5%
BOV-P
3
111
7
6.3%
North West Wales
BOV-IR-C
1
5
0
0
BOV-OTHER
1
9
0
0
Pembrokeshire
BOV-IR-C
177
2,072
402
19.4%
BOV-IR-EX
28
147
54
36.7%
BOV-OTHER
5
233
10
4.3%
BOV-P
5
307
22
7.2%
Powys
BOV-IR-C
39
422
51
12.1%
BOV-IR-EX
9
91
10
11.0%

Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
South Wales
BOV-IR-C
16
148
31
20.9%
BOV-IR-EX
1
16
4
25.0%
BOV-P
2
384
10
2.6%
BOV-POSTM
1
75
19
25.3%
Wales
433
5,764
892
15.5%
All GB
445
7,452
987
13.2 %