Monthly Report: Surveillance Project SB4008 IFNg (TC0651 and TC0751) & Antibody (TC0077) tests for bovine tuberculosis-October 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 November 2024
1st to 31st October 2024
218

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
October
2024
%
Total 2024
%
Submissions
243
2184
Samples
Total (%)
20535
100.00 %
181016
100.00 %
England
11532
56.16 %
115462
63.79 %
Wales
8429
41.05 %
59806
33.04 %
Scotland
574
2.80 %
5748
3.18 %
Parallel Tests
PAR-CHR
38
0.19 %
1545
0.85 %
PAR-CUL-N
0
0.00 %
386
0.21 %
PAR-CUL-P
378
1.84 %
5410
2.99 %
PAR-HERD-S
37
0.18 %
81
0.04 %
PAR-IR-EX
34
0.17 %
390
0.22 %
PAR-IR-SEV
323
1.57 %
3013
1.66 %
PAR-NEW-IN
6769
32.96 %
41266
22.80 %
PAR-OTHER
1269
6.18 %
7909
4.37 %
PAR-PERSIS
3082
15.01 %
31710
17.52 %
PAR-POSTM
0
0.00 %
PAR-RAPID
58
0.28 %
699
0.39 %
PAR-RECUR
7629
37.15 %
81413
44.98 %
Total(% of all samples)
19617
95.53 %
173822
96.03 %
Serial/Extended Tests
SER-ANOM
0
0.00 %
SER-FLEXI
918
4.47 %
6922
3.82 %
SER-FRAUD
0
0.00 %
SER-NSR
0
0.00 %
4
0.00 %
SER-OTHER
0
0.00 %
268
0.15 %
Total(% of all samples)
918
4.47 %
7194
3.97 %
Total
20535
100.00 %
181016
100.00 %
Retests
Total (% of all samples)
1020
4.97 %
11813
6.53 %
England
681
3.32 %
8065
4.46 %
Wales
323
1.57 %
3389
1.87 %
Scotland
16
0.08 %
359
0.20 %
Resamples
Total (% of all samples)
808
3.93 %
9568
5.29 %
England
542
2.64 %
6602
3.65 %
Wales
251
1.22 %
2690
1.49 %
Scotland
15
0.07 %
276
0.15 %
Rejects
Total (% of all samples)
58
0.28 %
1406
0.78 %
England
52
0.25 %
1183
0.65 %
Wales
3
0.01 %
215
0.12 %
Scotland
3
0.01 %
8
0.00 %
Table 1. Monthly Totals for October 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-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
38
0.2 %
PAR-CUL-P
378
1.8 %
PAR-HERD-S
37
0.2 %
PAR-IR-EX
34
0.2 %
PAR-IR-SEV
323
1.6 %
PAR-NEW-IN
6769
33.0 %
PAR-OTHER
1269
6.2 %
PAR-PERSIS
3082
15.0 %
PAR-RAPID
58
0.3 %
PAR-RECUR
7629
37.2 %
SER-FLEXI
918
4.5 %
Total
20535
100.00 %
Figure 1. Number of samples submitted in each category during October 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
3000
Ayrshire
W Glamorgan
S Glamorgan
Powys
Pembs
NE Wales
Mid Glamorgan
Gwynedd
Gwent
Ceredigion
Carms
Wiltshire
Warks
Staffs
Somerset excl N
Shropshire
Oxon
Notts
Northants
Leics & Rut
Heref
Hampshire
Dorset
Devon
Derbyshire
Cumbria
Corn & Scilly
Cheshire
Bucks
Berks
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-CHR
Breakdown of
Samples
submitted by
County
Figure 2. Number of samples submitted in each category by County during October 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
1
126
0.61 %
5
3.97 %
118
93.65 %
4
3.17 %
3
2.38 %
0
0.00 %
Corn & Scilly
PAR-OTHER
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
1
188
0.92 %
8
4.26 %
168
89.36 %
15
7.98 %
12
6.38 %
0
0.00 %
PAR-RECUR
15
1,341
6.53 %
58
4.33 %
1176
87.70 %
132
9.84 %
105
7.83 %
2
0.15 %
SER-FLEXI
1
2
0.01 %
0
0.00 %
0
0.00 %
2
100.00 %
2
100.00 %
0
0.00 %
Devon
PAR-CUL-P
1
119
0.58 %
3
2.52 %
111
93.28 %
8
6.72 %
5
4.20 %
0
0.00 %
PAR-OTHER
3
106
0.52 %
7
6.60 %
95
89.62 %
5
4.72 %
4
3.77 %
0
0.00 %
PAR-RECUR
5
997
4.86 %
31
3.11 %
928
93.08 %
62
6.22 %
37
3.71 %
1
0.10 %
Dorset
PAR-RECUR
2
120
0.58 %
7
5.83 %
98
81.67 %
16
13.33 %
15
12.50 %
0
0.00 %
Heref
PAR-CUL-P
1
40
0.19 %
1
2.50 %
35
87.50 %
4
10.00 %
4
10.00 %
0
0.00 %
PAR-RECUR
3
251
1.22 %
5
1.99 %
237
94.42 %
9
3.59 %
9
3.59 %
0
0.00 %
Shropshire
PAR-OTHER
3
251
1.22 %
16
6.37 %
221
88.05 %
16
6.37 %
14
5.58 %
0
0.00 %
PAR-RECUR
6
562
2.74 %
18
3.20 %
505
89.86 %
20
3.56 %
17
3.02 %
22
3.91 %
SER-FLEXI
1
7
0.03 %
1
14.29 %
6
85.71 %
0
0.00 %
0
0.00 %
0
0.00 %
Somerset excl N
PAR-RECUR
3
287
1.40 %
10
3.48 %
269
93.73 %
12
4.18 %
8
2.79 %
0
0.00 %
SER-FLEXI
2
520
2.53 %
17
3.27 %
472
90.77 %
38
7.31 %
31
5.96 %
0
0.00 %
Staffs
PAR-RECUR
1
23
0.11 %
0
0.00 %
22
95.65 %
1
4.35 %
1
4.35 %
0
0.00 %
Wiltshire
PAR-CUL-P
1
219
1.07 %
9
4.11 %
205
93.61 %
8
3.65 %
5
2.28 %
0
0.00 %
PAR-RECUR
5
1,008
4.91 %
50
4.96 %
924
91.67 %
38
3.77 %
34
3.37 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
2
11
0.05 %
0
0.00 %
11
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
9
0.04 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
9
100.00 %
Bucks
PAR-NEW-IN
3
361
1.76 %
5
1.39 %
334
92.52 %
22
6.09 %
22
6.09 %
0
0.00 %
Cheshire
PAR-OTHER
3
236
1.15 %
7
2.97 %
216
91.53 %
14
5.93 %
13
5.51 %
0
0.00 %
PAR-PERSIS
2
332
1.62 %
12
3.61 %
307
92.47 %
17
5.12 %
13
3.92 %
0
0.00 %
PAR-RECUR
3
527
2.57 %
10
1.90 %
500
94.88 %
19
3.61 %
17
3.23 %
0
0.00 %
Derbyshire
PAR-OTHER
3
204
0.99 %
4
1.96 %
179
87.75 %
24
11.76 %
21
10.29 %
0
0.00 %
Table 2a. Summary by County for October 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 October 2024 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-PERSIS
2
425
2.07 %
15
3.53 %
395
92.94 %
20
4.71 %
15
3.53 %
0
0.00 %
Hampshire
PAR-NEW-IN
1
33
0.16 %
2
6.06 %
29
87.88 %
3
9.09 %
2
6.06 %
0
0.00 %
Leics & Rut
PAR-NEW-IN
5
499
2.43 %
9
1.80 %
455
91.18 %
29
5.81 %
24
4.81 %
11
2.20 %
Northants
PAR-NEW-IN
2
424
2.06 %
7
1.65 %
388
91.51 %
38
8.96 %
29
6.84 %
0
0.00 %
Notts
PAR-NEW-IN
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Oxon
PAR-NEW-IN
1
121
0.59 %
2
1.65 %
108
89.26 %
12
9.92 %
11
9.09 %
0
0.00 %
PAR-OTHER
1
175
0.85 %
19
10.86 %
154
88.00 %
2
1.14 %
2
1.14 %
0
0.00 %
Warks
PAR-CHR
2
38
0.19 %
7
18.42 %
30
78.95 %
2
5.26 %
1
2.63 %
0
0.00 %
PAR-RECUR
2
377
1.84 %
13
3.45 %
352
93.37 %
19
5.04 %
12
3.18 %
0
0.00 %
England - LRA
Cumbria
PAR-NEW-IN
7
1,591
7.75 %
34
2.14 %
1496
94.03 %
70
4.40 %
54
3.39 %
7
0.44 %
England
97
11532
56.16 %
392
3.40 %
10546
91.45 %
681
5.91 %
542
4.70 %
52
0.45 %
Wales - High TB
Carms
PAR-HERD-S
2
37
0.18 %
0
0.00 %
34
91.89 %
3
8.11 %
3
8.11 %
0
0.00 %
PAR-IR-EX
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
2
11
0.05 %
8
72.73 %
3
27.27 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
4
202
0.98 %
77
38.12 %
120
59.41 %
8
3.96 %
5
2.48 %
0
0.00 %
PAR-PERSIS
5
747
3.64 %
54
7.23 %
684
91.57 %
15
2.01 %
9
1.20 %
0
0.00 %
PAR-RAPID
6
14
0.07 %
7
50.00 %
7
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
9
475
2.31 %
66
13.89 %
393
82.74 %
20
4.21 %
16
3.37 %
0
0.00 %
SER-FLEXI
1
66
0.32 %
29
43.94 %
34
51.52 %
3
4.55 %
3
4.55 %
0
0.00 %
Ceredigion
PAR-IR-SEV
3
17
0.08 %
9
52.94 %
8
47.06 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
2
5
0.02 %
0
0.00 %
5
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
1
4
0.02 %
0
0.00 %
3
75.00 %
1
25.00 %
1
25.00 %
0
0.00 %
PAR-RECUR
1
314
1.53 %
12
3.82 %
289
92.04 %
17
5.41 %
13
4.14 %
0
0.00 %
Gwent
PAR-IR-SEV
3
42
0.20 %
12
28.57 %
30
71.43 %
0
0.00 %
1
2.38 %
0
0.00 %
PAR-OTHER
3
92
0.45 %
22
23.91 %
70
76.09 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
3
5
0.02 %
2
40.00 %
3
60.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
120
0.58 %
2
1.67 %
105
87.50 %
15
12.50 %
13
10.83 %
0
0.00 %
Pembs
PAR-IR-EX
4
21
0.10 %
13
61.90 %
7
33.33 %
1
4.76 %
1
4.76 %
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 October 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
14
207
1.01 %
46
22.22 %
158
76.33 %
1
0.48 %
1
0.48 %
2
0.97 %
PAR-OTHER
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
13
1,335
6.50 %
78
5.84 %
1198
89.74 %
69
5.17 %
59
4.42 %
0
0.00 %
PAR-RAPID
5
12
0.06 %
3
25.00 %
9
75.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
5
1,092
5.32 %
89
8.15 %
974
89.19 %
39
3.57 %
29
2.66 %
0
0.00 %
Powys
PAR-IR-EX
4
5
0.02 %
3
60.00 %
2
40.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
2
12
0.06 %
2
16.67 %
9
75.00 %
1
8.33 %
1
8.33 %
0
0.00 %
PAR-PERSIS
1
42
0.20 %
4
9.52 %
38
90.48 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
3
10
0.05 %
1
10.00 %
9
90.00 %
1
10.00 %
0
0.00 %
0
0.00 %
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
0.01 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Intermediate TB
Mid Glamorgan
PAR-IR-SEV
1
7
0.03 %
1
14.29 %
3
42.86 %
3
42.86 %
3
42.86 %
0
0.00 %
PAR-PERSIS
2
8
0.04 %
0
0.00 %
3
37.50 %
5
62.50 %
5
62.50 %
0
0.00 %
NE Wales
PAR-IR-EX
3
6
0.03 %
1
16.67 %
5
83.33 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
7
15
0.07 %
9
60.00 %
6
40.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
7
325
1.58 %
11
3.38 %
296
91.08 %
21
6.46 %
17
5.23 %
1
0.31 %
PAR-RAPID
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Powys
PAR-IR-SEV
2
12
0.06 %
5
41.67 %
7
58.33 %
1
8.33 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
7
1,901
9.26 %
82
4.31 %
1775
93.37 %
64
3.37 %
44
2.31 %
0
0.00 %
S Glamorgan
PAR-RAPID
2
8
0.04 %
3
37.50 %
3
37.50 %
2
25.00 %
2
25.00 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-IR-EX
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
4
673
3.28 %
46
6.84 %
619
91.98 %
12
1.78 %
8
1.19 %
0
0.00 %
NE Wales
PAR-NEW-IN
4
255
1.24 %
2
0.78 %
244
95.69 %
12
4.71 %
9
3.53 %
0
0.00 %
SER-FLEXI
1
323
1.57 %
12
3.72 %
303
93.81 %
9
2.79 %
8
2.48 %
0
0.00 %
Wales
144
8429
41.05 %
714
8.47 %
7462
88.53 %
323
3.83 %
251
2.98 %
3
0.04 %
Scotland - Scotland
Ayrshire
PAR-NEW-IN
2
574
2.80 %
30
5.23 %
526
91.64 %
16
2.79 %
15
2.61 %
3
0.52 %
Scotland
2
574
2.80 %
30
5.23 %
526
91.64 %
16
2.79 %
15
2.61 %
3
0.52 %
Grand Total
Sum:
243
20535
1136
18534
1020
808
58
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 October 2024 Cont.
*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
0.24 %
49
11.32 %
360
83.14 %
26
6.00 %
24
5.54 %
0
0.00 %
PAR-PERSIS
6
758
0.42 %
91
12.01 %
623
82.19 %
48
6.33 %
44
5.80 %
0
0.00 %
PAR-RECUR
25
3,118
1.72 %
160
5.13 %
2777
89.06 %
222
7.12 %
179
5.74 %
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
0.49 %
35
3.93 %
805
90.35 %
58
6.51 %
51
5.72 %
0
0.00 %
PAR-OTHER
8
1,398
0.77 %
112
8.01 %
1193
85.34 %
109
7.80 %
93
6.65 %
0
0.00 %
PAR-PERSIS
13
1,684
0.93 %
132
7.84 %
1391
82.60 %
184
10.93 %
160
9.50 %
1
0.06 %
PAR-RECUR
77
7,739
4.28 %
413
5.34 %
6620
85.54 %
698
9.02 %
597
7.71 %
109
1.41 %
SER-FLEXI
9
118
0.07 %
21
17.80 %
90
76.27 %
9
7.63 %
6
5.08 %
1
0.85 %
Devon
PAR-CHR
5
458
0.25 %
10
2.18 %
411
89.74 %
41
8.95 %
36
7.86 %
1
0.22 %
PAR-CUL-N
5
240
0.13 %
13
5.42 %
213
88.75 %
17
7.08 %
14
5.83 %
0
0.00 %
PAR-CUL-P
9
735
0.41 %
30
4.08 %
576
78.37 %
157
21.36 %
129
17.55 %
0
0.00 %
PAR-OTHER
12
722
0.40 %
25
3.46 %
637
88.23 %
76
10.53 %
59
8.17 %
1
0.14 %
PAR-PERSIS
16
2,430
1.34 %
117
4.81 %
2180
89.71 %
170
7.00 %
129
5.31 %
4
0.16 %
PAR-RECUR
70
11,196
6.19 %
460
4.11 %
9995
89.27 %
843
7.53 %
671
5.99 %
70
0.63 %
Dorset
PAR-CUL-P
1
6
0.00 %
0
0.00 %
6
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
3
1,245
0.69 %
58
4.66 %
1160
93.17 %
40
3.21 %
27
2.17 %
0
0.00 %
PAR-RECUR
17
3,186
1.76 %
201
6.31 %
2842
89.20 %
171
5.37 %
141
4.43 %
2
0.06 %
SER-FLEXI
7
203
0.11 %
21
10.34 %
175
86.21 %
8
3.94 %
7
3.45 %
0
0.00 %
Gloucs
PAR-RECUR
27
4,025
2.22 %
182
4.52 %
3437
85.39 %
185
4.60 %
147
3.65 %
259
6.43 %
Heref
PAR-CHR
2
48
0.03 %
1
2.08 %
44
91.67 %
3
6.25 %
3
6.25 %
0
0.00 %
PAR-CUL-N
1
142
0.08 %
13
9.15 %
119
83.80 %
12
8.45 %
10
7.04 %
0
0.00 %
PAR-CUL-P
2
525
0.29 %
1
0.19 %
35
6.67 %
4
0.76 %
4
0.76 %
485
92.38 %
PAR-OTHER
1
150
0.08 %
10
6.67 %
131
87.33 %
11
7.33 %
9
6.00 %
0
0.00 %
PAR-PERSIS
3
565
0.31 %
25
4.42 %
525
92.92 %
18
3.19 %
15
2.65 %
0
0.00 %
PAR-RECUR
39
4,772
2.64 %
222
4.65 %
4195
87.91 %
413
8.65 %
353
7.40 %
2
0.04 %
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
%
Shropshire
PAR-CUL-P
3
370
0.20 %
39
10.54 %
320
86.49 %
11
2.97 %
11
2.97 %
0
0.00 %
PAR-OTHER
8
318
0.18 %
27
8.49 %
269
84.59 %
24
7.55 %
22
6.92 %
0
0.00 %
PAR-PERSIS
4
778
0.43 %
81
10.41 %
674
86.63 %
28
3.60 %
23
2.96 %
0
0.00 %
PAR-RECUR
52
9,183
5.07 %
324
3.53 %
8391
91.38 %
539
5.87 %
420
4.57 %
48
0.52 %
SER-FLEXI
5
437
0.24 %
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
0.55 %
43
4.33 %
883
88.92 %
65
6.55 %
56
5.64 %
11
1.11 %
PAR-OTHER
2
162
0.09 %
4
2.47 %
141
87.04 %
18
11.11 %
17
10.49 %
0
0.00 %
PAR-PERSIS
3
262
0.14 %
19
7.25 %
216
82.44 %
31
11.83 %
26
9.92 %
1
0.38 %
PAR-RECUR
39
5,462
3.02 %
264
4.83 %
4959
90.79 %
289
5.29 %
233
4.27 %
6
0.11 %
SER-FLEXI
3
576
0.32 %
20
3.47 %
524
90.97 %
40
6.94 %
32
5.56 %
0
0.00 %
Staffs
PAR-CHR
3
178
0.10 %
3
1.69 %
164
92.13 %
16
8.99 %
11
6.18 %
0
0.00 %
PAR-OTHER
2
67
0.04 %
7
10.45 %
54
80.60 %
8
11.94 %
5
7.46 %
1
1.49 %
PAR-PERSIS
2
233
0.13 %
53
22.75 %
162
69.53 %
27
11.59 %
18
7.73 %
0
0.00 %
PAR-RECUR
39
6,343
3.50 %
206
3.25 %
5814
91.66 %
387
6.10 %
317
5.00 %
6
0.09 %
Wiltshire
PAR-CUL-P
1
219
0.12 %
9
4.11 %
205
93.61 %
8
3.65 %
5
2.28 %
0
0.00 %
PAR-OTHER
1
470
0.26 %
13
2.77 %
442
94.04 %
23
4.89 %
15
3.19 %
0
0.00 %
PAR-PERSIS
2
329
0.18 %
7
2.13 %
307
93.31 %
27
8.21 %
15
4.56 %
0
0.00 %
PAR-RECUR
35
6,032
3.33 %
281
4.66 %
5519
91.50 %
266
4.41 %
210
3.48 %
22
0.36 %
England - Edge
Berks
PAR-CHR
1
138
0.08 %
12
8.70 %
117
84.78 %
12
8.70 %
9
6.52 %
0
0.00 %
PAR-NEW-IN
6
397
0.22 %
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
18
1,221
0.67 %
57
4.67 %
1091
89.35 %
87
7.13 %
71
5.81 %
2
0.16 %
PAR-RECUR
5
337
0.19 %
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
0.64 %
44
3.82 %
1084
94.10 %
50
4.34 %
24
2.08 %
0
0.00 %
PAR-NEW-IN
2
1,061
0.59 %
32
3.02 %
792
74.65 %
287
27.05 %
237
22.34 %
0
0.00 %
PAR-OTHER
7
1,277
0.71 %
46
3.60 %
1201
94.05 %
38
2.98 %
30
2.35 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 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-PERSIS
19
2,239
1.24 %
132
5.90 %
1888
84.32 %
249
11.12 %
219
9.78 %
0
0.00 %
PAR-RECUR
5
988
0.55 %
30
3.04 %
932
94.33 %
29
2.94 %
26
2.63 %
0
0.00 %
SER-FLEXI
8
1,397
0.77 %
47
3.36 %
1283
91.84 %
92
6.59 %
67
4.80 %
0
0.00 %
Derbyshire
PAR-NEW-IN
5
66
0.04 %
1
1.52 %
56
84.85 %
9
13.64 %
9
13.64 %
0
0.00 %
PAR-OTHER
4
347
0.19 %
51
14.70 %
271
78.10 %
29
8.36 %
25
7.20 %
0
0.00 %
PAR-PERSIS
2
425
0.23 %
15
3.53 %
395
92.94 %
20
4.71 %
15
3.53 %
0
0.00 %
PAR-RECUR
10
1,470
0.81 %
36
2.45 %
1341
91.22 %
106
7.21 %
91
6.19 %
2
0.14 %
E Sussex
PAR-CUL-P
3
519
0.29 %
23
4.43 %
474
91.33 %
34
6.55 %
22
4.24 %
0
0.00 %
PAR-NEW-IN
17
1,769
0.98 %
88
4.97 %
1580
89.32 %
122
6.90 %
100
5.65 %
1
0.06 %
Hampshire
PAR-NEW-IN
8
517
0.29 %
18
3.48 %
470
90.91 %
38
7.35 %
29
5.61 %
0
0.00 %
Leics & Rut
PAR-NEW-IN
38
4,899
2.71 %
149
3.04 %
4390
89.61 %
420
8.57 %
347
7.08 %
13
0.27 %
Northants
PAR-NEW-IN
26
2,658
1.47 %
69
2.60 %
2405
90.48 %
184
6.92 %
157
5.91 %
27
1.02 %
PAR-RECUR
1
197
0.11 %
1
0.51 %
180
91.37 %
18
9.14 %
16
8.12 %
0
0.00 %
Notts
PAR-NEW-IN
8
500
0.28 %
18
3.60 %
426
85.20 %
59
11.80 %
56
11.20 %
0
0.00 %
Oxon
PAR-CHR
1
174
0.10 %
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
13
872
0.48 %
36
4.13 %
748
85.78 %
103
11.81 %
87
9.98 %
1
0.11 %
PAR-OTHER
2
283
0.16 %
27
9.54 %
251
88.69 %
5
1.77 %
5
1.77 %
0
0.00 %
PAR-PERSIS
2
784
0.43 %
32
4.08 %
728
92.86 %
40
5.10 %
24
3.06 %
0
0.00 %
PAR-RECUR
16
1,630
0.90 %
53
3.25 %
1494
91.66 %
96
5.89 %
79
4.85 %
4
0.25 %
Warks
PAR-CHR
2
38
0.02 %
7
18.42 %
30
78.95 %
2
5.26 %
1
2.63 %
0
0.00 %
PAR-OTHER
6
127
0.07 %
16
12.60 %
98
77.17 %
15
11.81 %
13
10.24 %
0
0.00 %
PAR-RECUR
10
1,278
0.71 %
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 %
Cumbria
PAR-NEW-IN
21
3,425
1.89 %
74
2.16 %
3192
93.20 %
177
5.17 %
148
4.32 %
11
0.32 %
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
0.06 %
3
2.75 %
95
87.16 %
8
7.34 %
7
6.42 %
4
3.67 %
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
%
Herts
PAR-NEW-IN
5
347
0.19 %
10
2.88 %
318
91.64 %
26
7.49 %
19
5.48 %
0
0.00 %
Humberside
PAR-NEW-IN
2
83
0.05 %
0
0.00 %
75
90.36 %
10
12.05 %
8
9.64 %
0
0.00 %
Kent
SER-OTHER
2
248
0.14 %
1
0.40 %
240
96.77 %
9
3.63 %
6
2.42 %
1
0.40 %
Lancashire
PAR-NEW-IN
5
692
0.38 %
33
4.77 %
638
92.20 %
28
4.05 %
20
2.89 %
1
0.14 %
Lincs
PAR-NEW-IN
11
537
0.30 %
14
2.61 %
502
93.48 %
31
5.77 %
21
3.91 %
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
4
323
0.18 %
4
1.24 %
268
82.97 %
5
1.55 %
1
0.31 %
50
15.48 %
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
0.32 %
7
1.20 %
538
92.60 %
40
6.88 %
35
6.02 %
1
0.17 %
W Sussex
PAR-NEW-IN
3
704
0.39 %
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
911
115462
63.79 %
5240
4.54 %
102437
88.72 %
8065
6.98 %
6602
5.72 %
1183
1.02 %
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
57
408
0.23 %
140
34.31 %
253
62.01 %
16
3.92 %
13
3.19 %
2
0.49 %
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
0.79 %
253
17.67 %
1140
79.61 %
58
4.05 %
38
2.65 %
1
0.07 %
PAR-PERSIS
29
4,337
2.40 %
276
6.36 %
3934
90.71 %
152
3.50 %
120
2.77 %
7
0.16 %
PAR-RAPID
53
196
0.11 %
82
41.84 %
111
56.63 %
7
3.57 %
3
1.53 %
0
0.00 %
PAR-RECUR
33
4,398
2.43 %
181
4.12 %
4074
92.63 %
204
4.64 %
141
3.21 %
2
0.05 %
SER-FLEXI
4
125
0.07 %
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-IR-SEV
17
130
0.07 %
53
40.77 %
76
58.46 %
1
0.77 %
1
0.77 %
0
0.00 %
PAR-PERSIS
8
619
0.34 %
56
9.05 %
522
84.33 %
48
7.75 %
40
6.46 %
1
0.16 %
PAR-RAPID
8
32
0.02 %
8
25.00 %
23
71.88 %
1
3.13 %
1
3.13 %
0
0.00 %
PAR-RECUR
7
624
0.34 %
33
5.29 %
562
90.06 %
36
5.77 %
28
4.49 %
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-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
9
95
0.05 %
32
33.68 %
63
66.32 %
0
0.00 %
1
1.05 %
0
0.00 %
PAR-OTHER
8
137
0.08 %
27
19.71 %
107
78.10 %
4
2.92 %
3
2.19 %
0
0.00 %
PAR-PERSIS
7
463
0.26 %
40
8.64 %
413
89.20 %
12
2.59 %
10
2.16 %
0
0.00 %
PAR-RAPID
21
95
0.05 %
41
43.16 %
52
54.74 %
3
3.16 %
2
2.11 %
0
0.00 %
PAR-RECUR
21
1,265
0.70 %
43
3.40 %
1163
91.94 %
68
5.38 %
59
4.66 %
0
0.00 %
SER-FLEXI
6
400
0.22 %
5
1.25 %
375
93.75 %
23
5.75 %
18
4.50 %
2
0.50 %
Pembs
PAR-IR-EX
30
133
0.07 %
60
45.11 %
69
51.88 %
4
3.01 %
4
3.01 %
0
0.00 %
PAR-IR-SEV
165
1,796
0.99 %
543
30.23 %
1175
65.42 %
91
5.07 %
75
4.18 %
3
0.17 %
PAR-OTHER
11
602
0.33 %
76
12.62 %
508
84.39 %
27
4.49 %
18
2.99 %
0
0.00 %
PAR-PERSIS
90
10,842
5.99 %
629
5.80 %
9695
89.42 %
506
4.67 %
378
3.49 %
140
1.29 %
PAR-RAPID
72
238
0.13 %
71
29.83 %
158
66.39 %
10
4.20 %
9
3.78 %
0
0.00 %
PAR-RECUR
51
5,508
3.04 %
260
4.72 %
4995
90.69 %
319
5.79 %
242
4.39 %
11
0.20 %
SER-FLEXI
18
1,799
0.99 %
107
5.95 %
1554
86.38 %
157
8.73 %
136
7.56 %
2
0.11 %
Powys
PAR-IR-EX
10
94
0.05 %
38
40.43 %
54
57.45 %
7
7.45 %
2
2.13 %
0
0.00 %
PAR-IR-SEV
33
255
0.14 %
78
30.59 %
169
66.27 %
9
3.53 %
8
3.14 %
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
0.60 %
71
6.59 %
940
87.20 %
81
7.51 %
67
6.22 %
0
0.00 %
PAR-RAPID
22
40
0.02 %
10
25.00 %
30
75.00 %
1
2.50 %
0
0.00 %
0
0.00 %
PAR-RECUR
18
1,155
0.64 %
64
5.54 %
1040
90.04 %
61
5.28 %
49
4.24 %
2
0.17 %
SER-FLEXI
2
177
0.10 %
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-RAPID
2
3
0.00 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
2
28
0.02 %
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
0.19 %
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-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
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
4
9
0.00 %
4
44.44 %
2
22.22 %
2
22.22 %
2
22.22 %
1
11.11 %
Mid Glamorgan
PAR-IR-SEV
2
9
0.00 %
2
22.22 %
4
44.44 %
3
33.33 %
3
33.33 %
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-RECUR
2
88
0.05 %
3
3.41 %
83
94.32 %
3
3.41 %
2
2.27 %
0
0.00 %
NE Wales
PAR-IR-EX
16
32
0.02 %
7
21.88 %
25
78.13 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
43
203
0.11 %
57
28.08 %
135
66.50 %
11
5.42 %
11
5.42 %
0
0.00 %
PAR-NEW-IN
68
4,711
2.60 %
143
3.04 %
4287
91.00 %
342
7.26 %
267
5.67 %
14
0.30 %
PAR-OTHER
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
30
2,397
1.32 %
112
4.67 %
2195
91.57 %
101
4.21 %
81
3.38 %
9
0.38 %
PAR-RAPID
11
17
0.01 %
4
23.53 %
13
76.47 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
8
719
0.40 %
19
2.64 %
650
90.40 %
52
7.23 %
50
6.95 %
0
0.00 %
SER-FLEXI
7
743
0.41 %
35
4.71 %
678
91.25 %
39
5.25 %
30
4.04 %
0
0.00 %
Powys
PAR-IR-SEV
5
28
0.02 %
7
25.00 %
21
75.00 %
1
3.57 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
15
2,737
1.51 %
99
3.62 %
2565
93.72 %
97
3.54 %
71
2.59 %
2
0.07 %
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
5
411
0.23 %
26
6.33 %
365
88.81 %
25
6.08 %
20
4.87 %
0
0.00 %
S Glamorgan
PAR-RAPID
6
24
0.01 %
8
33.33 %
14
58.33 %
3
12.50 %
2
8.33 %
0
0.00 %
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
0.02 %
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
3
12
0.01 %
6
50.00 %
5
41.67 %
1
8.33 %
1
8.33 %
0
0.00 %
PAR-NEW-IN
58
3,539
1.96 %
132
3.73 %
3165
89.43 %
285
8.05 %
237
6.70 %
5
0.14 %
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 %
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
3
10
0.01 %
3
30.00 %
6
60.00 %
1
10.00 %
1
10.00 %
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
9
51
0.03 %
19
37.25 %
30
58.82 %
2
3.92 %
2
3.92 %
0
0.00 %
PAR-NEW-IN
38
3,899
2.15 %
106
2.72 %
3508
89.97 %
328
8.41 %
279
7.16 %
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
4
485
0.27 %
42
8.66 %
407
83.92 %
40
8.25 %
36
7.42 %
0
0.00 %
Wales
1247
59806
33.04 %
4316
7.22 %
52586
87.93 %
3389
5.67 %
2690
4.50 %
215
0.36 %
Scotland - Scotland
Ayrshire
PAR-NEW-IN
4
822
0.45 %
35
4.26 %
762
92.70 %
24
2.92 %
21
2.55 %
4
0.49 %
Kirkcudbright
PAR-NEW-IN
10
3,147
1.74 %
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
0.97 %
40
2.28 %
1591
90.81 %
156
8.90 %
119
6.79 %
2
0.11 %
Scotland
26
5748
3.18 %
150
2.61 %
5314
92.45 %
359
6.25 %
276
4.80 %
8
0.14 %
Grand Total
Sum:
xx-xxxx-xxxx
9706
160337
11813
9568
1406
*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 October 2024
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
93
11003
95.4%
374
3.4%
10068
91.5%
641
5.8%
509
4.6%
52
0.5%
Serial/Extended
4
529
4.6%
18
3.4%
478
90.4%
40
7.6%
33
6.2%
0
0.0 %
Total
97
11532
100.0%
392
3.4%
10546
91.4%
681
5.9%
542
4.7%
52
0.5%
Scotland
Parallel
2
574
100.0%
30
5.2%
526
91.6%
16
2.8%
15
2.6%
3
0.5%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
2
574
100.0%
30
5.2%
526
91.6%
16
2.8%
15
2.6%
3
0.5%
Wales
Parallel
142
8040
95.4%
673
8.4%
7125
88.6%
311
3.9%
240
3.0%
3
0.0%
Serial/Extended
2
389
4.6%
41
10.5%
337
86.6%
12
3.1%
11
2.8%
0
0.0 %
Total
144
8429
100.0%
714
8.5%
7462
88.5%
323
3.8%
251
3.0%
3
0.0%
GB
Parallel
237
19617
95.5%
1077
5.5%
17719
90.3%
968
4.9%
764
3.9%
58
0.3%
Serial/Extended
6
918
4.5%
59
6.4%
815
88.8%
52
5.7%
44
4.8%
0
0.0 %
Total
243
20535
100.0%
1136
5.5%
18534
90.3%
1020
5.0%
808
3.9%
58
0.3%
97.00
144.00
2.00
* 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
865 112082
97.1%
5038
4.5%
99468
88.7%
7856
7.0%
6445
5.8%
1131
1.0%
Serial/Extended
46
3380
2.9%
202
6.0%
2969
87.8%
209
6.2%
157
4.6%
52
1.5%
Total
911 115462
100.0%
5240
4.5% 102437
88.7%
8065
7.0%
6602
5.7%
1183
1.0%
Scotland
Parallel
26
5748
100.0%
150
2.6%
5314
92.4%
359
6.2%
276
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
26
5748
100.0%
150
2.6%
5314
92.4%
359
6.2%
276
4.8%
8
0.1%
Wales
Parallel
1202
55992
93.6%
4038
7.2%
49335
88.1%
3062
5.5%
2410
4.3%
210
0.4%
Serial/Extended
45
3814
6.4%
278
7.3%
3251
85.2%
327
8.6%
280
7.3%
5
0.1%
Total
1247
59806
100.0%
4316
7.2%
52586
87.9%
3389
5.7%
2690
4.5%
215
0.4%
GB
Parallel
xx-xxxx-xxxx
96.0%
9226
5.3% 154117
88.7%
11277
6.5%
9131
5.3%
1349
0.8%
Serial/Extended
91
7194
4.0%
480
6.7%
6220
86.5%
536
7.5%
437
6.1%
57
0.8%
Total
xx-xxxx-xxxx
100.0%
9706
5.4% 160337
88.6%
11813
6.5%
9568
5.3%
1406
0.8%
911.00
#######
26.00
* 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
6
918
4.5%
59
6.4%
815
88.8%
52
5.7 %
44
4.8 %
0
Parallel – chronic breakdown
2
38
0.2%
7
18.4%
30
78.9%
2
5.3 %
1
2.6 %
0
Parallel - Herd or Group Slaughter
2
37
0.2%
0
0.0 %
34
91.9%
3
8.1 %
3
8.1 %
0
Parallel - IRs in Exit Strategy for persistent her
13
34
0.2%
18
52.9%
15
44.1%
1
2.9 %
1
2.9 %
0
Parallel New Infection
46
6769
33.0%
230
3.4%
6282
92.8%
299
4.4 %
235
3.5 %
22
0.3 %
Parallel - Other
23
1269
6.2%
153
12.1%
1057
83.3%
69
5.4 %
59
4.6 %
0
Parallel Persistent Infection
28
3082
15.0%
171
5.5%
2798
90.8%
141
4.6 %
113
3.7 %
0
Parallel - persistent infection cull area
3
378
1.8%
13
3.4%
351
92.9%
20
5.3 %
14
3.7 %
0
Parallel - Rapid Testing Two-times IRs
23
58
0.3%
17
29.3%
38
65.5%
4
6.9 %
3
5.2 %
0
Parallel - Recurrent breakdowns
63
7629
37.2%
376
4.9%
6890
90.3%
423
5.5 %
329
4.3 %
34
0.4 %
Parallel - severe IRs - in persistent herds
34
323
1.6%
92
28.5%
224
69.3%
6
1.9 %
6
1.9 %
2
0.6 %
Total
243
20535
100.0%
1136
5.5%
18534
90.3%
1020
5.0 %
808
3.9 %
58
0.3 %
Table 4a. Summaryof IFN Gamma results by submission reason (October 2024)
England - HRA
Extended Flexible IFN-GAMMA test
4
529
2.6%
18
3.4%
478
90.4%
40
7.6 %
33
6.2 %
0
Parallel - Other
7
358
1.7%
23
6.4%
317
88.5%
21
5.9 %
18
5.0 %
0
Parallel Persistent Infection
1
188
0.9%
8
4.3%
168
89.4%
15
8.0 %
12
6.4 %
0
Parallel - persistent infection cull area
3
378
1.8%
13
3.4%
351
92.9%
20
5.3 %
14
3.7 %
0
Parallel - Recurrent breakdowns
41
4715
23.0%
184
3.9%
4277
90.7%
294
6.2 %
229
4.9 %
25
0.5 %
England - HRA
56
6168
30.0%
246
4.0%
5591
90.6%
390
6.3 %
306
5.0 %
25
0.4 %
England - Edge
Parallel – chronic breakdown
2
38
0.2%
7
18.4%
30
78.9%
2
5.3 %
1
2.6 %
0
Parallel New Infection
15
1450
7.1%
25
1.7%
1326
91.4%
104
7.2 %
88
6.1 %
11
0.8 %
Parallel - Other
7
615
3.0%
30
4.9%
549
89.3%
40
6.5 %
36
5.9 %
0
Parallel Persistent Infection
4
757
3.7%
27
3.6%
702
92.7%
37
4.9 %
28
3.7 %
0
Parallel - Recurrent breakdowns
6
913
4.4%
23
2.5%
852
93.3%
38
4.2 %
29
3.2 %
9
1.0 %
England - Edge
34
3773
18.4%
112
3.0%
3459
91.7%
221
5.9 %
182
4.8 %
20
0.5 %
England - LRA
Parallel New Infection
7
1591
7.7%
34
2.1%
1496
94.0%
70
4.4 %
54
3.4 %
7
0.4 %
England - LRA
7
1591
7.7%
34
2.1%
1496
94.0%
70
4.4 %
54
3.4 %
7
0.4 %
Wales - High TB
Extended Flexible IFN-GAMMA test
1
66
0.3%
29
43.9%
34
51.5%
3
4.5 %
3
4.5 %
0
Parallel - Herd or Group Slaughter
2
37
0.2%
0
0.0 %
34
91.9%
3
8.1 %
3
8.1 %
0
Parallel - IRs in Exit Strategy for persistent her
9
27
0.1%
17
63.0%
9
33.3%
1
3.7 %
1
3.7 %
0
Parallel - Other
9
296
1.4%
100
33.8%
191
64.5%
8
2.7 %
5
1.7 %
0
Parallel Persistent Infection
21
2129
10.4%
136
6.4%
1925
90.4%
84
3.9 %
68
3.2 %
0
Parallel - Rapid Testing Two-times IRs
20
48
0.2%
14
29.2%
33
68.8%
2
4.2 %
1
2.1 %
0
Parallel - Recurrent breakdowns
16
2001
9.7%
169
8.4%
1761
88.0%
91
4.5 %
71
3.5 %
0
Parallel - severe IRs - in persistent herds
24
289
1.4%
77
26.6%
208
72.0%
2
0.7 %
3
1.0 %
2
0.7 %
Wales - High TB
102
4893
23.8%
542
11.1%
4195
85.7%
194
4.0 %
155
3.2 %
2
0.0 %
Wales - Intermediate TB
Parallel - IRs in Exit Strategy for persistent her
3
6
0.0%
1
16.7%
5
83.3%
0
0
0
Parallel New Infection
14
2226
10.8%
93
4.2%
2071
93.0%
85
3.8 %
61
2.7 %
1
0.0 %
Parallel Persistent Infection
2
8
0.0%
0
0.0 %
3
37.5%
5
62.5 %
5
62.5 %
0
Parallel - Rapid Testing Two-times IRs
3
10
0.0%
3
30.0%
5
50.0%
2
20.0 %
2
20.0 %
0
Parallel - severe IRs - in persistent herds
10
34
0.2%
15
44.1%
16
47.1%
4
11.8 %
3
8.8 %
0
Wales - Intermediate TB
32
2284
11.1%
112
4.9%
2100
91.9%
96
4.2 %
71
3.1 %
1
0.0 %
Wales - Low TB
Extended Flexible IFN-GAMMA test
1
323
1.6%
12
3.7%
303
93.8%
9
2.8 %
8
2.5 %
0
Parallel - IRs in Exit Strategy for persistent her
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Parallel New Infection
8
928
4.5%
48
5.2%
863
93.0%
24
2.6 %
17
1.8 %
0
Wales - Low TB
10
1252
6.1%
60
4.8%
1167
93.2%
33
2.6 %
25
2.0 %
0
Scotland - Scotland
Parallel New Infection
2
574
2.8%
30
5.2%
526
91.6%
16
2.8 %
15
2.6 %
3
0.5 %
Scotland - Scotland
2
574
2.8%
30
5.2%
526
91.6%
16
2.8 %
15
2.6 %
3
0.5 %

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
85
6922
3.8%
479
6.9%
5956
86.0%
527
7.6 %
431
6.2 %
56
0.8 %
Parallel – chronic breakdown
21
1545
0.9%
96
6.2%
1359
88.0%
107
6.9 %
89
5.8 %
1
0.1 %
Parallel - Herd or Group Slaughter
4
81
0.0%
6
7.4%
68
84.0%
7
8.6 %
7
8.6 %
0
Parallel - IRs in Exit Strategy for persistent herds
83
390
0.2%
168
43.1%
209
53.6%
19
4.9 %
13
3.3 %
0
Parallel New Infection
410
41266
22.8%
1306
3.2%
37302
90.4%
3107
7.5 %
2538
6.2 %
120
0.3 %
Parallel - new infection cull area
7
386
0.2%
26
6.7%
334
86.5%
31
8.0 %
26
6.7 %
0
Parallel - Other
94
7909
4.4%
707
8.9%
6835
86.4%
463
5.9 %
363
4.6 %
4
0.1 %
Parallel Persistent Infection
257
31710
17.5%
1958
6.2%
28161
88.8%
1805
5.7 %
1428
4.5 %
163
0.5 %
Parallel - persistent infection cull area
35
5410
3.0%
224
4.1%
4388
81.1%
387
7.2 %
302
5.6 %
496
9.2 %
Parallel - Rapid Testing Two-times IRs
214
699
0.4%
239
34.2%
431
61.7%
36
5.2 %
28
4.0 %
1
0.1 %
Parallel - Recurrent breakdowns
619
81413
45.0%
3552
4.4%
73081
89.8%
5179
6.4 %
4221
5.2 %
559
0.7 %
Parallel - severe IRs - in persistent herds
349
3013
1.7%
944
31.3%
1949
64.7%
136
4.5 %
116
3.8 %
5
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%
9706
5.4%
160337
88.6%
11813
6.5 %
9568
5.3 %
1406
0.8 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2024)
England - HRA
Extended Flexible IFN-GAMMA test
28
1388
0.8%
150
10.8%
1154
83.1%
103
7.4 %
83
6.0 %
1
0.1 %
Parallel – chronic breakdown
17
1195
0.7%
67
5.6%
1052
88.0%
88
7.4 %
75
6.3 %
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
34
3287
1.8%
198
6.0%
2867
87.2%
269
8.2 %
220
6.7 %
2
0.1 %
Parallel Persistent Infection
52
8284
4.6%
583
7.0%
7238
87.4%
573
6.9 %
457
5.5 %
6
0.1 %
Parallel - persistent infection cull area
27
3739
2.1%
157
4.2%
2830
75.7%
303
8.1 %
256
6.8 %
496
13.3 %
Parallel - Recurrent breakdowns
420
61056
33.7%
2713
4.4%
54549
89.3%
4013
6.6 %
3268
5.4 %
526
0.9 %
England - Edge
Extended Flexible IFN-GAMMA test
8
1397
0.8%
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
1
9
0.0%
0
0.0 %
7
77.8%
2
22.2 %
2
22.2 %
0
Parallel New Infection
141
13960
7.7%
493
3.5%
12314
88.2%
1326
9.5 %
1106
7.9 %
47
0.3 %
Parallel - new infection cull area
1
4
0.0%
0
0.0 %
2
50.0%
2
50.0 %
2
50.0 %
0

Table 4b. Summary of IFN Gamma results by submission reason (Total 2024) Cont.
Parallel - Other
19
2034
1.1%
140
6.9%
1821
89.5%
87
4.3 %
73
3.6 %
0
Parallel Persistent Infection
23
3448
1.9%
179
5.2%
3011
87.3%
309
9.0 %
258
7.5 %
0
Parallel - persistent infection cull area
8
1671
0.9%
67
4.0%
1558
93.2%
84
5.0 %
46
2.8 %
0
Parallel - Recurrent breakdowns
48
5909
3.3%
199
3.4%
5355
90.6%
376
6.4 %
340
5.8 %
15
0.3 %
England - LRA
Extended Flexible IFN-GAMMA test
4
323
0.2%
4
1.2%
268
83.0%
5
1.5 %
1
0.3 %
50
15.5 %
Parallel New Infection
62
6623
3.7%
182
2.7%
6102
92.1%
368
5.6 %
301
4.5 %
38
0.6 %
Parallel Persistent Infection
2
131
0.1%
5
3.8%
123
93.9%
8
6.1 %
3
2.3 %
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
911 115462
63.8%
5240
4.5%
102437
88.7%
8065
7.0 %
6602
5.7 %
1183
1.0 %
Wales - High TB
Extended Flexible IFN-GAMMA test
30
2501
1.4%
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
61
315
0.2%
133
42.2%
170
54.0%
17
5.4 %
12
3.8 %
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
1.2%
359
16.0%
1823
81.1%
96
4.3 %
63
2.8 %
2
0.1 %
Parallel Persistent Infection
143
17339
9.6%
1072
6.2%
15504
89.4%
799
4.6 %
615
3.5 %
148
0.9 %
Parallel - Rapid Testing Two-times IRs
180
607
0.3%
213
35.1%
379
62.4%
22
3.6 %
15
2.5 %
0
Parallel - Recurrent breakdowns
132
12978
7.2%
585
4.5%
11856
91.4%
689
5.3 %
520
4.0 %
17
0.1 %
Parallel - severe IRs - in persistent herds
284
2707
1.5%
852
31.5%
1752
64.7%
118
4.4 %
99
3.7 %
5
0.2 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
8
818
0.5%
59
7.2%
727
88.9%
41
5.0 %
32
3.9 %
0
Parallel - IRs in Exit Strategy for persistent herd
18
68
0.0%
34
50.0%
34
50.0%
1
1.5 %
0
0
Parallel New Infection
83
7448
4.1%
242
3.2%
6852
92.0%
439
5.9 %
338
4.5 %
16
0.2 %
Parallel - Other
5
341
0.2%
10
2.9%
324
95.0%
11
3.2 %
7
2.1 %
0
Parallel Persistent Infection
35
2449
1.4%
114
4.7%
2232
91.1%
115
4.7 %
94
3.8 %
9
0.4 %
Parallel - Rapid Testing Two-times IRs
27
77
0.0%
23
29.9%
45
58.4%
9
11.7 %
8
10.4 %
1
1.3 %
Parallel - Recurrent breakdowns
17
1281
0.7%
52
4.1%
1155
90.2%
82
6.4 %
74
5.8 %
0
Parallel - severe IRs - in persistent herds
53
243
0.1%
67
27.6%
162
66.7%
15
6.2 %
14
5.8 %
0
Wales - Low TB
Extended Flexible IFN-GAMMA test
7
495
0.3%
45
9.1%
413
83.4%
41
8.3 %
37
7.5 %
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
97
7466
4.1%
238
3.2%
6701
89.8%
613
8.2 %
516
6.9 %
11
0.1 %
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
Parallel - Recurrent breakdowns
2
189
0.1%
3
1.6%
166
87.8%
19
10.1 %
19
10.1 %
1
0.5 %

Table 4b. Summary of IFN Gamma results by submission reason (Total 2024) Cont.
Parallel - severe IRs - in persistent herds
12
63
0.0%
25
39.7%
35
55.6%
3
4.8 %
3
4.8 %
0
Wales
1247
59806
33.0%
4316
7.2%
52586
87.9%
3389
5.7 %
2690
4.5 %
215
0.4 %
Scotland - Scotland
Parallel New Infection
26
5748
3.2%
150
2.6%
5314
92.4%
359
6.2 %
276
4.8 %
8
0.1 %
Scotland
26
5748
3.2%
150
2.6%
5314
92.4%
359
6.2 %
276
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 November
250
22290
157
1277
6
24
0
0
0
0
142
8
0
18
0
982
0
97
0
0
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
14
2
0
0
July
223
19494
124
825
7
0
0
0
0
25
4
0
20
0
754
1
7
1
5
August
197
14635
123
639
25
0
0
0
0
21
0
1
16
2
551
1
21
0
0
September
174
11490
104
803
75
0
0
0
0
89
0
10
4
2
618
0
5
0
0
October
243
20535
159
1136
348
247
0
0
0
0
10
0
4
0
0
242
12
0
0
0
Totals (last
12 months)
2617
217343
1661
11875
355
450
0
0
0
0
598
29
16
159
4
9389
30
560
2
6
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
1085
139871
736
6573
208
0
0
0
0
541
11
2
93
3
5436
15
102
1
0
Scotland
31
6475
26
158
0
0
0
0
0
0
1
0
6
0
115
0
6
0
0
Wales
1501
70997
899
5144
242
0
0
0
0
57
17
14
60
1
3838
15
452
1
6
Totals
2617
217343
1661
11875
450
0
0
0
0
598
29
16
159
4
9389
30
560
2
6
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
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
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
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
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
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
20
40
60
80
100
120
Wiltshire
Warks
Somerset excl N
S Glamorgan
Pembs
Notts
NE Wales
Leics & Rut
Hampshire
Gwent
Devon
Cumbria
Cheshire
Carms
Berks
Avon
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during October 2024 (% submission per
County)
County
%Resampled %Retested
Avon
2.38 %
3.17 %
Ayrshire
2.61 %
2.79 %
Berks
Bucks
6.09 %
6.09 %
Carms
2.32 %
3.16 %
Ceredigion
4.12 %
5.29 %
Cheshire
3.93 %
4.57 %
Corn & Scilly
7.77 %
9.73 %
Cumbria
3.39 %
4.40 %
Derbyshire
5.72 %
7.00 %
Devon
3.76 %
6.14 %
Dorset
12.50 %
13.33 %
Gwent
5.41 %
5.79 %
Gwynedd
1.19 %
1.78 %
Hampshire
6.06 %
9.09 %
Heref
4.47 %
4.47 %
Leics & Rut
4.81 %
5.81 %
Mid Glamorgan
53.33 %
53.33 %
NE Wales
3.67 %
4.54 %
Northants
6.84 %
8.96 %
Notts
Oxon
4.39 %
4.73 %
Pembs
3.37 %
4.12 %
Powys
2.27 %
3.38 %
S Glamorgan
25.00 %
25.00 %
Shropshire
3.78 %
4.39 %
Somerset excl
4.83 %
6.20 %
Staffs
4.35 %
4.35 %
Warks
3.13 %
5.06 %
W Glamorgan
Wiltshire
3.18 %
3.75 %

Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
11300
392
3.5%
11532
392
3.4%
Wales
8358
714
8.5%
8429
714
8.5%
Scotland
574
30
5.2%
574
30
5.2%
GB
20232
1136
5.6%
20535
1136
5.5%
Table 6a (i): Number of animals and submissions tested in October 2024
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
107176
5236
4.9%
115462
5240
4.5%
Wales
56397
4314
7.6%
59806
4316
7.2%
Scotland
5545
150
2.7%
5748
150
2.6%
GB
xx-xxxx-xxxx
9700
5.7%
181016
9706
5.4%
Table 6b (i): Number of animals and submissions tested in 2024 Up to end of October
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
13599
549
4.0%
13736
549
4.0%
Wales
4449
268
6.0%
4475
268
6.0%
Scotland
436
8
1.8%
445
8
1.8%
GB
18484
825
4.5%
18656
825
4.4%
Table 6a (ii): Number of animals and submissions tested in October 2023
Table 6b (ii): Number of animals and submissions tested in 2023 Up to end of October
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
112659
4707
4.2%
119849
4708
3.9%
Wales
49148
2686
5.5%
52610
2686
5.1%
Scotland
7006
462
6.6%
11055
462
4.2%
GB
xx-xxxx-xxxx
7855
4.7%
183514
7856
4.3%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Devon
PRV-SE
1
1
0
0
Total
1
1
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 October 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 %
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
18
254
16
6.30 %

Country
County
Test Reason
Num
Submissions
Num Samples
Tested
Num Positive
Samples
% Positive
England
Cumbria
BOV-OTHER
1
157
32
20.4%
England
1
157
32
20.4%
Wales
Carmarthenshire
BOV-IR-C
5
25
9
36.0%
BOV-IR-EX
1
1
0
0
BOV-OTHER
1
208
13
6.3%
Ceredigion
BOV-IR-C
3
34
11
32.4%
BOV-IR-EX
1
15
2
13.3%
North East Wales
BOV-IR-C
5
39
15
38.5%
BOV-OTHER
2
323
6
1.9%
Pembrokeshire
BOV-IR-C
14
231
33
14.3%
BOV-IR-EX
2
17
9
52.9%
Powys
BOV-IR-C
2
12
2
16.7%
BOV-IR-EX
3
66
7
10.6%
South Wales
BOV-IR-C
4
42
9
21.4%
Wales
43
1,013
116
11.5%
All GB
44
1,170
148
12.6 %
Table 8a Number of Cattle Antibody Tests October 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%
England
11
1,619
94
5.8%
Wales
Carmarthenshire
BOV-IR-C
46
421
80
19.0%
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
21
166
40
24.1%
BOV-IR-EX
8
65
17
26.2%
North East Wales
BOV-IR-C
30
203
47
23.2%
BOV-IR-EX
5
14
3
21.4%
BOV-OTHER
5
433
15
3.5%
BOV-P
3
111
7
6.3%
North West Wales
BOV-IR-C
1
5
0
0
Pembrokeshire
BOV-IR-C
155
1,876
373
19.9%
BOV-IR-EX
27
146
54
37.0%
BOV-OTHER
5
233
10
4.3%
BOV-P
4
243
21
8.6%
Powys
BOV-IR-C
33
329
46
14.0%
BOV-IR-EX
6
86
8
9.3%
South Wales
BOV-IR-C
15
130
28
21.5%

Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
BOV-IR-EX
1
16
4
25.0%
BOV-P
2
384
10
2.6%
BOV-POSTM
1
75
19
25.3%
Wales
379
5,242
805
15.4%
All GB
390
6,861
899
13.1 %