Monthly Report: Surveillance Project SB4008 IFNg (TC0651 and TC0751) & Antibody (TC0077) tests for bovine tuberculosis-April 2025
Source: environment.data.gov.uk (2026-01-14)

Interferon-Gamma Testing for Bovine Tuberculosis - Monthly Reports from January 2025. 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 for April 2025
• “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.

Monthly Report: Surveillance Project SB4008 IFNg (TC0651 and TC0751) &
Antibody (TC0077) tests for bovine tuberculosis for April 2025
Test Criteria

Submission Reason
Explanation
Mandatory?
1. Interferon-gamma test: 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)
1. Interferon-gamma test: '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)
1. Interferon-gamma test: 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
1. Interferon-gamma test: 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
1. Interferon-gamma test: 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)
1. Interferon-gamma test: 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)
1. Interferon-gamma test: 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)
1. Interferon-gamma test: PAR-IR-SEV
Parallel blood testing of all severe IRs identified in persistent breakdown herds only (coupled with
Idexx antibody testing)
YES (Wales only)
1. Interferon-gamma test: PAR-OTHER
Other parallel IFNG blood testing not covered in any of the other scenarios
NO (APHA discretion)
1. Interferon-gamma test: PAR-POSTM
Post movement IFNG blood test of cattle (coupled with Idexx antibody testing)
Yes (currently Wales ITBAN
only)
1. Interferon-gamma test: PAR-RAPID
Parallel blood testing of two-times IRs identified under the severe interpretation of the skin test used
in Wales.
YES (Wales only)
1. Interferon-gamma test: 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)
1. Interferon-gamma test: 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)
1. Interferon-gamma test: 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
1. Interferon-gamma test: 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)
1. Interferon-gamma test: Serial Other (SER-
OTHER)
Serial test – other reasons
NO (APHA discretion)
1. Interferon-gamma test: 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)
2. IDEXX antibody test:
BOV-IR-C
Compulsory antibody testing of severe IRs (coupled IFNG testing)
YES (Wales only)
2. IDEXX antibody test:
BOV-IR-EX
Compulsory antibody testing of IRs as part of Exit Strategy (coupled with IFNG testing)
YES (Wales only)
2. IDEXX antibody test:
BOV-OTHER
Antibody testing for reasons not covered by the above
NO (APHA discretion - Eng &
Wales)
2. IDEXX antibody test:
BOV-P
Supplementary antibody testing within persistent infected herds
NO (APHA discretion - Eng &
Wales)
2 IDEXX antibody test:
BOV-POSTM
Compulsory post-movement antibody test of cattle (coupled with IFNG testing)
YES (Wales only)

Submissions
Number of Samples % Samples
Parallel

21231
98.42%
PAR-CHR
990
4.59%
PAR-IR-EX
40
0.19%
PAR-IR-SEV
204
0.95%
PAR-NEW-IN
7594
35.20%
PAR-OTHER
744
3.45%
PAR-PERSIS
3647
16.91%
PAR-RAPID
54
0.25%
PAR-RECUR
7958
36.89%
Serial / Extended

341
1.58%
SER-FLEXI
341
1.58%
Total
21572
100.00%
Country
Number of Samples % Samples
England
11226
52.04%
Scotland
xx-xxxx-xxxx
7.86%
Wales
8651
40.10%
Total
21572
100.00%
Country
Number of Samples % Samples
England
45839
61.67%
Scotland
2690
3.62%
Wales
25800
34.71%
Total
74329
100.00%
Submissions
Number of Samples % Samples
Parallel

72581
97.65%
PAR-CHR
2451
3.30%
PAR-CUL-N
2
0.00%
PAR-CUL-P
660
0.89%
PAR-HERD-S
18
0.02%
PAR-IR-EX
123
0.17%
PAR-IR-SEV
1036
1.39%
PAR-NEW-IN
23121
31.11%
PAR-OTHER
4166
5.60%
PAR-PERSIS
13307
17.90%
PAR-RAPID
252
0.34%
PAR-RECUR
27445
36.92%
Serial / Extended

1748
2.35%
SER-FLEXI
1737
2.34%
SER-NSR
11
0.01%
Total
74329
100.00%
247
Submissions
943
Submissions
Year to Date Totals
Table 1. Monthly Totals for April 2025
Monthly Totals for April 2025
Country
Number of Samples Rejects
Total (% of all Samples)
England
11226
121
1.08%
Scotland
xx-xxxx-xxxx

Wales
8651
72
0.83%
Total
21572
193
0.89%
Country
Number of Samples Resamples Total (% of all Samples)
England
11226
436
3.88%
Scotland
xx-xxxx-xxxx
23
1.36%
Wales
8651
218
2.52%
Total
21572
677
3.14%
Country
Number of Samples Retests
Total (% of all Samples)
England
11226
650
5.79%
Scotland
xx-xxxx-xxxx
73
4.31%
Wales
8651
302
3.49%
Total
21572
1025
4.75%
Country
Number of Samples Rejects
Total (% of all Samples)
England
45839
378
0.82%
Scotland
2690
3
0.11%
Wales
25800
213
0.83%
Total
74329
594
0.80%
Country
Number of Samples Resamples Total (% of all Samples)
England
45839
2331
5.09%
Scotland
2690
73
2.71%
Wales
25800
1020
3.95%
Total
74329
3424
4.61%
Country
Number of Samples Retests
Total (% of all Samples)
England
45839
2849
6.22%
Scotland
2690
140
5.20%
Wales
25800
1271
4.93%
Total
74329
4260
5.73%

Figure 1. Number of samples submitted in each category April 2025
Submission Reason Number of Samples % Samples
PAR-CHR
990
4.59%
PAR-IR-EX
40
0.19%
PAR-IR-SEV
204
0.95%
PAR-NEW-IN
7594
35.20%
PAR-OTHER
744
3.45%
PAR-PERSIS
3647
16.91%
PAR-RAPID
54
0.25%
PAR-RECUR
7958
36.89%
SER-FLEXI
341
1.58%
Total
21572
100.00%
No Samples by Submission Reason
37%
PAR-NEW-IN 35%
17%
PAR-CHR 5%
PAR-OTHER 3%
PAR-RECUR
PAR-PERSIS
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

Figure 2. Number of samples submitted in each category by County in April 2025
Number of Samples by Country from CPH, County and Reason
0K
1K
2K
3K
4K
5K
Number of Samples
County
Bedfordshire
Berkshire
Buckinghamshire
Cheshire
Cornwall and Isles of Scilly
Cumbria
Derbyshire
Devon
Dorset
East Riding and North Lincolns
East Sussex
Essex
Gloucestershire
Hampshire
Herefordshire
Isle of Wight
Leicestershire and Rutland
Lincolnshire
Northamptonshire
Northern Somerset & South Glou
Nottinghamshire
Oxfordshire
Shropshire
Somerset excl North
Staffordshire
Warwickshire
Wiltshire
Ayrshire
Dumfries & Galloway
Fife
Carmarthenshire
Ceredigion
Cheshire
North East Wales
North West Wales
Pembrokeshire
Powys
South Wales
England
Scotland
Wales
1.0K
0.3K
0.8K
0.3K
0.8K
1.5K
1.1K
0.4K
0.3K
0.5K
0.6K
0.3K
0.3K
0.4K
0.7K
1.6K
0.4K
0.5K
0.3K
1.0K
0.9K
0.4K
0.4K
3.4K
Reason
PAR-CHR
PAR-IR-EX
PAR-IR-SEV
PAR-NEW-IN
PAR-OTHER
PAR-PERSIS
PAR-RAPID
PAR-RECUR
SER-FLEXI
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

Figure 3. Number of samples submitted in each category by County this year
Number of Samples by Country from CPH, County and Reason
0K
2K
4K
6K
8K
10K
Number of Samples
County
Bedfordshire
Berkshire
Buckinghamshire
Cheshire
Cornwall and Isles of Scilly
Cumbria
Derbyshire
Devon
Dorset
Durham
East Riding and North Lincolns
East Sussex
Essex
Gloucestershire
Hampshire
Herefordshire
Hertfordshire
Isle of Wight
Kent
Leicestershire and Rutland
Lincolnshire
North Yorkshire
Northamptonshire
Northern Somerset & South Glou
Nottinghamshire
Oxfordshire
Shropshire
Somerset excl North
Staffordshire
Surrey
Warwickshire
West Midlands
West Yorkshire
Wiltshire
Worcestershire
Argyll and Bute
Ayrshire
Clyde Valley
Dumfries & Galloway
Fife
Carmarthenshire
Ceredigion
Cheshire
North East Wales
North West Wales
Pembrokeshire
Powys
South Wales
England
Scotland
Wales
0.6K
0.9K
1.0K
0.6K
0.6K
2.1K
2.4K
1.7K
3.8K
1.5K
0.6K
1.7K
2.8K
1.3K
1.0K
0.5K
0.8K
1.0K
0.5K
0.5K
1.5K
0.9K
4.1K
3.3K
0.6K
0.7K
1.0K
2.9K
0.9K
1.4K
2.3K
3.2K
2.6K
2.8K
0.9K
1.4K
4.2K
0.6K
Reason
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
SER-NSR
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

Table 2a. Summary by County April 2025
Country

No Subs Samples % of Total
Gamma
Positive
% Positive
Gamma
Negative
% Negative
Retest % Retest Resample % Resample
Rejected % Rejected
England

119
11226
52.04%
620
5.52%
9960
88.72%
650
5.79%
436
3.88%
121
1.08%
England - HRA

50
5209
24.15%
375
7.20%
4525
86.87%
373
7.16%
249
4.78%
12
0.23%
Cornwall and Isles
of Scilly

4
108
0.50%
7
6.48%
97
89.81%
6
5.56%
4
3.70%

PAR-RECUR
4
108
0.50%
7
6.48%
97
89.81%
6
5.56%
4
3.70%

Devon

11
987
4.58%
79
8.00%
783
79.33%
128
12.97%
106
10.74%
10
1.01%
PAR-OTHER
4
327
1.52%
21
6.42%
234
71.56%
76
23.24%
71
21.71%
1
0.31%
PAR-PERSIS
1
122
0.57%
4
3.28%
110
90.16%
8
6.56%

PAR-RECUR
6
538
2.49%
54
10.04%
439
81.60%
44
8.18%
35
6.51%
9
1.67%
Dorset

1
3
0.01%
1
33.33%
1
33.33%
1
33.33%
1
33.33%

PAR-PERSIS
1
3
0.01%
1
33.33%
1
33.33%
1
33.33%
1
33.33%

Gloucestershire

1
4
0.02%
2
50.00%

2
50.00%
2
50.00%

PAR-RECUR
1
4
0.02%
2
50.00%

2
50.00%
2
50.00%

Herefordshire

4
225
1.04%
68
30.22%
146
64.89%
11
4.89%

PAR-OTHER
1
51
0.24%
4
7.84%
44
86.27%
3
5.88%

PAR-RECUR
2
32
0.15%
1
3.13%
30
93.75%
1
3.13%

SER-FLEXI
1
142
0.66%
63
44.37%
72
50.70%
7
4.93%

Northern Somerset
& South Glou

3
238
1.10%
8
3.36%
222
93.28%
8
3.36%
2
0.84%

PAR-OTHER
1
99
0.46%
1
1.01%
98
98.99%

PAR-RECUR
2
139
0.64%
7
5.04%
124
89.21%
8
5.76%
2
1.44%

Shropshire

15
1125
5.22%
48
4.27%
1028
91.38%
82
7.29%
49
4.36%

PAR-CHR
2
16
0.07%

8
50.00%
8
50.00%
8
50.00%

PAR-PERSIS
2
65
0.30%
3
4.62%
61
93.85%
2
3.08%
1
1.54%

PAR-RECUR
11
1044
4.84%
45
4.31%
959
91.86%
72
6.90%
40
3.83%

Somerset excl North

3
881
4.08%
25
2.84%
839
95.23%
28
3.18%
16
1.82%

PAR-RECUR
3
881
4.08%
25
2.84%
839
95.23%
28
3.18%
16
1.82%

Staffordshire

4
652
3.02%
103
15.80%
492
75.46%
69
10.58%
57
8.74%

PAR-PERSIS
1
233
1.08%
80
34.33%
135
57.94%
20
8.58%
18
7.73%

PAR-RECUR
3
419
1.94%
23
5.49%
357
85.20%
49
11.69%
39
9.31%

Wiltshire

4
986
4.57%
34
3.45%
917
93.00%
38
3.85%
12
1.22%
2
0.20%
PAR-CHR
3
974
4.52%
33
3.39%
908
93.22%
35
3.59%
10
1.03%
2
0.21%
PAR-RECUR
1
12
0.06%
1
8.33%
9
75.00%
3
25.00%
2
16.67%

England - Edge

56
5262
24.39%
212
4.03%
4768
90.61%
221
4.20%
151
2.87%
102
1.94%
Berkshire

4
636
2.95%
41
6.45%
573
90.09%
22
3.46%
21
3.30%
1
0.16%
PAR-NEW-IN
3
311
1.44%
19
6.11%
277
89.07%
15
4.82%
14
4.50%
1
0.32%
PAR-PERSIS
1
325
1.51%
22
6.77%
296
91.08%
7
2.15%
7
2.15%

Buckinghamshire

11
792
3.67%
54
6.82%
624
78.79%
15
1.89%
10
1.26%
101
12.75%
PAR-NEW-IN
10
789
3.66%
53
6.72%
622
78.83%
15
1.90%
10
1.27%
101
12.80%
PAR-RECUR
1
3
0.01%
1
33.33%
2
66.67%

Cheshire

2
25
0.12%

20
80.00%
7
28.00%
5
20.00%

PAR-OTHER
2
25
0.12%

20
80.00%
7
28.00%
5
20.00%

Derbyshire

8
1241
5.75%
32
2.58%
1163
93.71%
63
5.08%
46
3.71%

PAR-NEW-IN
5
843
3.91%
30
3.56%
786
93.24%
41
4.86%
27
3.20%

PAR-RECUR
3
398
1.84%
2
0.50%
377
94.72%
22
5.53%
19
4.77%

East Sussex

3
186
0.86%
5
2.69%
175
94.09%
6
3.23%
5
2.69%

PAR-NEW-IN
1
1
0.00%

1
100.00%
1
100.00%

SER-FLEXI
2
185
0.86%
5
2.70%
175
94.59%
5
2.70%
4
2.16%

Hampshire

3
31
0.14%
1
3.23%
28
90.32%
2
6.45%
2
6.45%

PAR-NEW-IN
3
31
0.14%
1
3.23%
28
90.32%
2
6.45%
2
6.45%

Isle of Wight

1
58
0.27%

54
93.10%
4
6.90%

PAR-NEW-IN
1
58
0.27%

54
93.10%
4
6.90%

Leicestershire and
Rutland

11
1454
6.74%
47
3.23%
1345
92.50%
75
5.16%
47
3.23%

PAR-NEW-IN
11
1454
6.74%
47
3.23%
1345
92.50%
75
5.16%
47
3.23%

Northamptonshire

1
6
0.03%

6
100.00%

PAR-NEW-IN
1
6
0.03%

6
100.00%

Nottinghamshire

1
1
0.00%

1
100.00%

PAR-NEW-IN
1
1
0.00%

1
100.00%

Oxfordshire

9
612
2.84%
24
3.92%
569
92.97%
23
3.76%
13
2.12%

PAR-NEW-IN
3
268
1.24%
15
5.60%
247
92.16%
10
3.73%
6
2.24%

PAR-OTHER
1
4
0.02%
1
25.00%
3
75.00%

PAR-RECUR
5
340
1.58%
8
2.35%
319
93.82%
13
3.82%
7
2.06%

Warwickshire

2
220
1.02%
8
3.64%
210
95.45%
4
1.82%
2
0.91%

PAR-RECUR
2
220
1.02%
8
3.64%
210
95.45%
4
1.82%
2
0.91%

England - LRA

13
755
3.50%
33
4.37%
667
88.34%
56
7.42%
36
4.77%
7
0.93%
Bedfordshire

3
121
0.56%
2
1.65%
103
85.12%
14
11.57%
10
8.26%
4
3.31%
PAR-NEW-IN
3
121
0.56%
2
1.65%
103
85.12%
14
11.57%
10
8.26%
4
3.31%
Cumbria

2
334
1.55%
20
5.99%
300
89.82%
17
5.09%
14
4.19%

PAR-NEW-IN
2
334
1.55%
20
5.99%
300
89.82%
17
5.09%
14
4.19%

East Riding and
North Lincolns

1
60
0.28%

56
93.33%
4
6.67%
4
6.67%

PAR-NEW-IN
1
60
0.28%

56
93.33%
4
6.67%
4
6.67%

Essex

3
133
0.62%
11
8.27%
106
79.70%
14
10.53%
3
2.26%
3
2.26%
PAR-NEW-IN
3
133
0.62%
11
8.27%
106
79.70%
14
10.53%
3
2.26%
3
2.26%
Lincolnshire

4
107
0.50%

102
95.33%
7
6.54%
5
4.67%

PAR-NEW-IN
4
107
0.50%

102
95.33%
7
6.54%
5
4.67%

Scotland

10
xx-xxxx-xxxx
7.86%
69
4.07%
1577
93.04%
73
4.31%
23
1.36%

Scotland - Scotland

10
xx-xxxx-xxxx
7.86%
69
4.07%
1577
93.04%
73
4.31%
23
1.36%

Ayrshire

4
193
0.89%
11
5.70%
182
94.30%
10
5.18%

PAR-NEW-IN
4
193
0.89%
11
5.70%
182
94.30%
10
5.18%

Dumfries &

2
1134
5.26%
47
4.14%
1044
92.06%
48
4.23%
17
1.50%

PAR-NEW-IN
2
1134
5.26%
47
4.14%
1044
92.06%
48
4.23%
17
1.50%

Fife

4
368
1.71%
11
2.99%
351
95.38%
15
4.08%
6
1.63%

PAR-NEW-IN
4
368
1.71%
11
2.99%
351
95.38%
15
4.08%
6
1.63%

Wales

118
8651
40.10%
294
3.40%
8048
93.03%
302
3.49%
218
2.52%
72
0.83%
Wales - High TB

79
6487
30.07%
245
3.78%
6059
93.40%
185
2.85%
131
2.02%
40
0.62%
Carmarthenshire

18
837
3.88%
65
7.77%
746
89.13%
32
3.82%
25
2.99%
1
0.12%
PAR-IR-SEV
9
69
0.32%
16
23.19%
51
73.91%
2
2.90%
2
2.90%

PAR-OTHER
1
1
0.00%

1
100.00%

PAR-PERSIS
3
376
1.74%
17
4.52%
349
92.82%
13
3.46%
10
2.66%

PAR-RAPID
4
10
0.05%
5
50.00%
5
50.00%

PAR-RECUR
1
381
1.77%
27
7.09%
340
89.24%
17
4.46%
13
3.41%
1
0.26%
Ceredigion

6
189
0.88%
8
4.23%
175
92.59%
5
2.65%

1
0.53%
PAR-IR-EX
1
2
0.01%

2
100.00%

PAR-IR-SEV
2
29
0.13%
4
13.79%
25
86.21%

PAR-OTHER
1
150
0.70%
4
2.67%
140
93.33%
5
3.33%

1
0.67%
PAR-PERSIS
2
8
0.04%

8
100.00%

Pembrokeshire

45
5272
24.44%
158
3.00%
4970
94.27%
139
2.64%
100
1.90%
37
0.70%
PAR-IR-EX
5
28
0.13%
15
53.57%
12
42.86%
1
3.57%
1
3.57%

PAR-IR-SEV
11
66
0.31%
20
30.30%
44
66.67%
2
3.03%
1
1.52%

PAR-OTHER
3
87
0.40%
12
13.79%
73
83.91%
3
3.45%
2
2.30%

PAR-PERSIS
10
1629
7.55%
46
2.82%
1539
94.48%
54
3.31%
30
1.84%
8
0.49%
PAR-RAPID
4
32
0.15%
5
15.63%
26
81.25%
1
3.13%
1
3.13%

PAR-RECUR
12
3430
15.90%
60
1.75%
3276
95.51%
78
2.27%
65
1.90%
29
0.85%
Powys

7
23
0.11%
8
34.78%
10
43.48%
4
17.39%
4
17.39%
1
4.35%
PAR-IR-EX
1
5
0.02%
3
60.00%
2
40.00%

PAR-IR-SEV
1
2
0.01%

1
50.00%
1
50.00%
1
50.00%

PAR-RAPID
3
7
0.03%
5
71.43%
2
28.57%

PAR-RECUR
2
9
0.04%

5
55.56%
3
33.33%
3
33.33%
1
11.11%
South Wales

3
166
0.77%
6
3.61%
158
95.18%
5
3.01%
2
1.20%

PAR-IR-SEV
1
3
0.01%
2
66.67%
1
33.33%

PAR-PERSIS
1
161
0.75%
4
2.48%
155
96.27%
5
3.11%
2
1.24%

PAR-RAPID
1
2
0.01%

2
100.00%

Wales - Intermediate
TB

20
1181
5.47%
29
2.46%
1083
91.70%
48
4.06%
30
2.54%
32
2.71%
Cheshire

3
323
1.50%
4
1.24%
286
88.54%
6
1.86%
6
1.86%
27
8.36%
PAR-NEW-IN
3
323
1.50%
4
1.24%
286
88.54%
6
1.86%
6
1.86%
27
8.36%
North East Wales

14
842
3.90%
17
2.02%
789
93.71%
42
4.99%
24
2.85%
5
0.59%
PAR-IR-EX
1
2
0.01%

2
100.00%

PAR-IR-SEV
5
22
0.10%
8
36.36%
14
63.64%

PAR-NEW-IN
3
91
0.42%
3
3.30%
78
85.71%
12
13.19%
10
10.99%

PAR-PERSIS
3
725
3.36%
6
0.83%
693
95.59%
30
4.14%
14
1.93%
5
0.69%
PAR-RAPID
2
2
0.01%

2
100.00%

Powys

2
15
0.07%
8
53.33%
7
46.67%

PAR-IR-EX
1
2
0.01%
2
100.00%

PAR-IR-SEV
1
13
0.06%
6
46.15%
7
53.85%

South Wales

1
1
0.00%

1
100.00%

PAR-RAPID
1
1
0.00%

1
100.00%

Wales - Low TB

19
983
4.56%
20
2.03%
906
92.17%
69
7.02%
57
5.80%

North East Wales

8
428
1.98%
7
1.64%
405
94.63%
22
5.14%
16
3.74%

PAR-IR-EX
1
1
0.00%
1
100.00%

PAR-NEW-IN
5
413
1.91%
5
1.21%
395
95.64%
17
4.12%
13
3.15%

SER-FLEXI
2
14
0.06%
1
7.14%
10
71.43%
5
35.71%
3
21.43%

North West Wales

11
555
2.57%
13
2.34%
501
90.27%
47
8.47%
41
7.39%

PAR-NEW-IN
11
555
2.57%
13
2.34%
501
90.27%
47
8.47%
41
7.39%

Total
247
21572
100.00%
983
4.56%
19585
90.79%
1025
4.75%
677
3.14%
193
0.89%

Table 2b. Summary by County YTD
Country
No
Subs
Samples % of Total Gamma
Positive
% Positive
Gamma
Negative
% Negative
Retest % Retest
Resample % Resample
Rejected % Rejected
England

428
45839
61.67%
2485
5.42%
40556
88.47%
2849
6.22%
2331
5.09%
378
0.82%
England - HRA

213
24256
32.63%
1563
6.44%
21167
87.27%
1652
6.81%
1354
5.58%
124
0.51%
Cornwall and Isles of
Scilly

13
1257
1.69%
99
7.88%
1095
87.11%
81
6.44%
62
4.93%
1
0.08%
PAR-OTHER
5
761
1.02%
70
9.20%
651
85.55%
47
6.18%
40
5.26%

PAR-RECUR
8
496
0.67%
29
5.85%
444
89.52%
34
6.85%
22
4.44%
1
0.20%
Devon

50
5156
6.94%
428
8.30%
4400
85.34%
337
6.54%
290
5.62%
29
0.56%
PAR-CHR
3
563
0.76%
37
6.57%
502
89.17%
13
2.31%
11
1.95%
13
2.31%
PAR-CUL-N
1
2
0.00%

2
100.00%

PAR-CUL-P
3
235
0.32%
15
6.38%
209
88.94%
16
6.81%
11
4.68%

PAR-OTHER
9
996
1.34%
107
10.74%
794
79.72%
100
10.04%
93
9.34%
2
0.20%
PAR-PERSIS
3
444
0.60%
22
4.95%
407
91.67%
17
3.83%
7
1.58%

PAR-RECUR
31
2916
3.92%
247
8.47%
2486
85.25%
191
6.55%
168
5.76%
14
0.48%
Dorset

4
476
0.64%
67
14.08%
371
77.94%
43
9.03%
38
7.98%

PAR-PERSIS
3
453
0.61%
65
14.35%
361
79.69%
32
7.06%
27
5.96%

PAR-RECUR
1
23
0.03%
2
8.70%
10
43.48%
11
47.83%
11
47.83%

Gloucestershire

7
908
1.22%
46
5.07%
793
87.33%
82
9.03%
69
7.60%

PAR-RECUR
7
908
1.22%
46
5.07%
793
87.33%
82
9.03%
69
7.60%

Herefordshire

12
700
0.94%
85
12.14%
547
78.14%
72
10.29%
56
8.00%
1
0.14%
PAR-OTHER
1
51
0.07%
4
7.84%
44
86.27%
3
5.88%

PAR-RECUR
10
507
0.68%
18
3.55%
431
85.01%
62
12.23%
56
11.05%
1
0.20%
SER-FLEXI
1
142
0.19%
63
44.37%
72
50.70%
7
4.93%

Northern Somerset &
South Glou

16
1678
2.26%
117
6.97%
1493
88.97%
87
5.18%
62
3.69%

PAR-OTHER
4
255
0.34%
9
3.53%
237
92.94%
10
3.92%
9
3.53%

PAR-RECUR
12
1423
1.91%
108
7.59%
1256
88.26%
77
5.41%
53
3.72%

Shropshire

32
3437
4.62%
167
4.86%
3040
88.45%
256
7.45%
203
5.91%
27
0.79%
PAR-CHR
2
16
0.02%

8
50.00%
8
50.00%
8
50.00%

PAR-OTHER
4
137
0.18%
12
8.76%
113
82.48%
14
10.22%
12
8.76%

PAR-PERSIS
2
65
0.09%
3
4.62%
61
93.85%
2
3.08%
1
1.54%

PAR-RECUR
24
3219
4.33%
152
4.72%
2858
88.79%
232
7.21%
182
5.65%
27
0.84%
Somerset excl North

26
2618
3.52%
105
4.01%
2333
89.11%
148
5.65%
125
4.77%
54
2.06%
PAR-CHR
1
5
0.01%
2
40.00%
1
20.00%
2
40.00%
2
40.00%

PAR-CUL-P
1
1
0.00%

1
100.00%
1
100.00%

PAR-OTHER
2
35
0.05%
4
11.43%
29
82.86%
2
5.71%
2
5.71%

PAR-RECUR
22
2577
3.47%
99
3.84%
2303
89.37%
143
5.55%
120
4.66%
54
2.10%
Staffordshire

24
4165
5.60%
220
5.28%
3629
87.13%
360
8.64%
309
7.42%
7
0.17%
PAR-CHR
3
882
1.19%
34
3.85%
772
87.53%
83
9.41%
74
8.39%
2
0.23%
PAR-PERSIS
4
517
0.70%
82
15.86%
398
76.98%
39
7.54%
35
6.77%
2
0.39%
PAR-RECUR
17
2766
3.72%
104
3.76%
2459
88.90%
238
8.60%
200
7.23%
3
0.11%
West Midlands

4
509
0.68%
29
5.70%
452
88.80%
31
6.09%
28
5.50%

PAR-RECUR
4
509
0.68%
29
5.70%
452
88.80%
31
6.09%
28
5.50%

Wiltshire

20
2878
3.87%
169
5.87%
2588
89.92%
133
4.62%
95
3.30%
5
0.17%
PAR-CHR
3
974
1.31%
33
3.39%
908
93.22%
35
3.59%
10
1.03%
2
0.21%
PAR-CUL-P
1
424
0.57%
22
5.19%
389
91.75%
14
3.30%
13
3.07%

PAR-PERSIS
6
532
0.72%
39
7.33%
453
85.15%
40
7.52%
37
6.95%
3
0.56%
PAR-RECUR
7
916
1.23%
62
6.77%
820
89.52%
43
4.69%
34
3.71%

SER-FLEXI
3
32
0.04%
13
40.63%
18
56.25%
1
3.13%
1
3.13%

Worcestershire

5
474
0.64%
31
6.54%
426
89.87%
22
4.64%
17
3.59%

PAR-CHR
1
11
0.01%
4
36.36%
7
63.64%

PAR-RECUR
4
463
0.62%
27
5.83%
419
90.50%
22
4.75%
17
3.67%

England - Edge

161
16365
22.02%
722
4.41%
14708
89.87%
899
5.49%
734
4.49%
172
1.05%
Berkshire

10
971
1.31%
49
5.05%
876
90.22%
47
4.84%
45
4.63%
1
0.10%
PAR-NEW-IN
7
619
0.83%
26
4.20%
555
89.66%
38
6.14%
37
5.98%
1
0.16%
PAR-PERSIS
2
351
0.47%
23
6.55%
320
91.17%
9
2.56%
8
2.28%

PAR-RECUR
1
1
0.00%

1
100.00%

Buckinghamshire

29
2232
3.00%
131
5.87%
1823
81.68%
139
6.23%
117
5.24%
158
7.08%
PAR-NEW-IN
25
2065
2.78%
119
5.76%
xx-xxxx-xxxx
81.94%
109
5.28%
93
4.50%
158
7.65%
PAR-RECUR
4
167
0.22%
12
7.19%
131
78.44%
30
17.96%
24
14.37%

Cheshire

8
1195
1.61%
36
3.01%
1099
91.97%
73
6.11%
59
4.94%
1
0.08%
PAR-OTHER
3
530
0.71%
11
2.08%
489
92.26%
37
6.98%
29
5.47%
1
0.19%
PAR-RECUR
5
665
0.89%
25
3.76%
610
91.73%
36
5.41%
30
4.51%

Derbyshire

26
2835
3.81%
72
2.54%
2617
92.31%
174
6.14%
144
5.08%
2
0.07%
PAR-NEW-IN
15
1650
2.22%
44
2.67%
1514
91.76%
111
6.73%
91
5.52%
1
0.06%
PAR-OTHER
3
151
0.20%
11
7.28%
134
88.74%
8
5.30%
6
3.97%

PAR-RECUR
8
1034
1.39%
17
1.64%
969
93.71%
55
5.32%
47
4.55%
1
0.10%
East Sussex

7
661
0.89%
19
2.87%
629
95.16%
18
2.72%
12
1.82%

PAR-NEW-IN
4
351
0.47%
12
3.42%
333
94.87%
9
2.56%
6
1.71%

PAR-PERSIS
1
125
0.17%
2
1.60%
121
96.80%
4
3.20%
2
1.60%

SER-FLEXI
2
185
0.25%
5
2.70%
175
94.59%
5
2.70%
4
2.16%

Hampshire

12
589
0.79%
18
3.06%
522
88.62%
51
8.66%
45
7.64%
4
0.68%
PAR-NEW-IN
7
381
0.51%
15
3.94%
331
86.88%
40
10.50%
35
9.19%

PAR-OTHER
2
184
0.25%
3
1.63%
171
92.93%
10
5.43%
10
5.43%

PAR-RECUR
3
24
0.03%

20
83.33%
1
4.17%

4
16.67%
Isle of Wight

1
58
0.08%

54
93.10%
4
6.90%

PAR-NEW-IN
1
58
0.08%

54
93.10%
4
6.90%

Leicestershire and
Rutland

32
3787
5.09%
212
5.60%
3400
89.78%
205
5.41%
156
4.12%
4
0.11%
PAR-NEW-IN
32
3787
5.09%
212
5.60%
3400
89.78%
205
5.41%
156
4.12%
4
0.11%
Northamptonshire

5
285
0.38%
7
2.46%
267
93.68%
12
4.21%
11
3.86%

PAR-NEW-IN
5
285
0.38%
7
2.46%
267
93.68%
12
4.21%
11
3.86%

Nottinghamshire

2
59
0.08%
3
5.08%
54
91.53%
2
3.39%
2
3.39%

PAR-NEW-IN
2
59
0.08%
3
5.08%
54
91.53%
2
3.39%
2
3.39%

Oxfordshire

21
2947
3.96%
132
4.48%
2704
91.75%
126
4.28%
103
3.50%
2
0.07%
PAR-NEW-IN
5
622
0.84%
36
5.79%
567
91.16%
24
3.86%
19
3.05%

PAR-OTHER
1
4
0.01%
1
25.00%
3
75.00%

PAR-RECUR
15
2321
3.12%
95
4.09%
2134
91.94%
102
4.39%
84
3.62%
2
0.09%
Warwickshire

8
746
1.00%
43
5.76%
663
88.87%
48
6.43%
40
5.36%

PAR-OTHER
3
370
0.50%
29
7.84%
316
85.41%
31
8.38%
25
6.76%

PAR-RECUR
5
376
0.51%
14
3.72%
347
92.29%
17
4.52%
15
3.99%

England - LRA

54
5218
7.02%
200
3.83%
4681
89.71%
298
5.71%
243
4.66%
82
1.57%
Bedfordshire

5
273
0.37%
4
1.47%
241
88.28%
21
7.69%
16
5.86%
10
3.66%
PAR-NEW-IN
5
273
0.37%
4
1.47%
241
88.28%
21
7.69%
16
5.86%
10
3.66%
Cumbria

15
2414
3.25%
99
4.10%
2175
90.10%
140
5.80%
125
5.18%
15
0.62%
PAR-NEW-IN
15
2414
3.25%
99
4.10%
2175
90.10%
140
5.80%
125
5.18%
15
0.62%
Durham

3
410
0.55%
7
1.71%
379
92.44%
26
6.34%
24
5.85%

PAR-NEW-IN
3
410
0.55%
7
1.71%
379
92.44%
26
6.34%
24
5.85%

East Riding and North
Lincolns

1
60
0.08%

56
93.33%
4
6.67%
4
6.67%

PAR-NEW-IN
1
60
0.08%

56
93.33%
4
6.67%
4
6.67%

Essex

4
205
0.28%
12
5.85%
126
61.46%
15
7.32%
4
1.95%
53
25.85%
PAR-NEW-IN
4
205
0.28%
12
5.85%
126
61.46%
15
7.32%
4
1.95%
53
25.85%
Hertfordshire

4
129
0.17%
7
5.43%
115
89.15%
5
3.88%
5
3.88%
2
1.55%
PAR-NEW-IN
4
129
0.17%
7
5.43%
115
89.15%
5
3.88%
5
3.88%
2
1.55%
Kent

2
150
0.20%
11
7.33%
132
88.00%
7
4.67%
7
4.67%

PAR-NEW-IN
2
150
0.20%
11
7.33%
132
88.00%
7
4.67%
7
4.67%

Lincolnshire

16
1503
2.02%
57
3.79%
1391
92.55%
75
4.99%
55
3.66%

PAR-NEW-IN
16
1503
2.02%
57
3.79%
1391
92.55%
75
4.99%
55
3.66%

North Yorkshire

1
38
0.05%
3
7.89%
33
86.84%

2
5.26%
PAR-NEW-IN
1
38
0.05%
3
7.89%
33
86.84%

2
5.26%
Surrey

1
11
0.01%

11
100.00%

SER-NSR
1
11
0.01%

11
100.00%

West Yorkshire

2
25
0.03%

22
88.00%
5
20.00%
3
12.00%

PAR-NEW-IN
2
25
0.03%

22
88.00%
5
20.00%
3
12.00%

Scotland

22
2690
3.62%
77
2.86%
2511
93.35%
140
5.20%
73
2.71%
3
0.11%
Scotland - Scotland

22
2690
3.62%
77
2.86%
2511
93.35%
140
5.20%
73
2.71%
3
0.11%
Argyll and Bute

3
159
0.21%
1
0.63%
155
97.48%
6
3.77%
3
1.89%

PAR-NEW-IN
3
159
0.21%
1
0.63%
155
97.48%
6
3.77%
3
1.89%

Ayrshire

4
193
0.26%
11
5.70%
182
94.30%
10
5.18%

PAR-NEW-IN
4
193
0.26%
11
5.70%
182
94.30%
10
5.18%

Clyde Valley

5
309
0.42%
1
0.32%
279
90.29%
29
9.39%
26
8.41%
3
0.97%
PAR-NEW-IN
5
309
0.42%
1
0.32%
279
90.29%
29
9.39%
26
8.41%
3
0.97%
Dumfries & Galloway

6
1661
2.23%
53
3.19%
1544
92.96%
80
4.82%
38
2.29%

PAR-NEW-IN
6
1661
2.23%
53
3.19%
1544
92.96%
80
4.82%
38
2.29%

Fife

4
368
0.50%
11
2.99%
351
95.38%
15
4.08%
6
1.63%

PAR-NEW-IN
4
368
0.50%
11
2.99%
351
95.38%
15
4.08%
6
1.63%

Wales

493
25800
34.71%
1911
7.41%
22637
87.74%
1271
4.93%
1020
3.95%
213
0.83%
Wales - High TB

351
18305
24.63%
1508
8.24%
15966
87.22%
816
4.46%
665
3.63%
154
0.84%
Carmarthenshire

82
3579
4.82%
387
10.81%
3054
85.33%
163
4.55%
132
3.69%
6
0.17%
PAR-IR-EX
2
9
0.01%
4
44.44%
5
55.56%

PAR-IR-SEV
23
144
0.19%
40
27.78%
99
68.75%
7
4.86%
5
3.47%

PAR-OTHER
3
11
0.01%
1
9.09%
9
81.82%
1
9.09%
1
9.09%

PAR-PERSIS
14
1503
2.02%
96
6.39%
1363
90.69%
56
3.73%
42
2.79%
2
0.13%
PAR-RAPID
21
57
0.08%
29
50.88%
25
43.86%
3
5.26%
3
5.26%

PAR-RECUR
9
1357
1.83%
105
7.74%
1183
87.18%
75
5.53%
66
4.86%
3
0.22%
SER-FLEXI
10
498
0.67%
112
22.49%
370
74.30%
21
4.22%
15
3.01%
1
0.20%
Ceredigion

24
560
0.75%
59
10.54%
464
82.86%
36
6.43%
28
5.00%
4
0.71%
PAR-IR-EX
3
6
0.01%
3
50.00%
3
50.00%

PAR-IR-SEV
7
65
0.09%
15
23.08%
48
73.85%
4
6.15%
2
3.08%

PAR-OTHER
2
151
0.20%
4
2.65%
140
92.72%
6
3.97%
1
0.66%
1
0.66%
PAR-PERSIS
8
319
0.43%
27
8.46%
265
83.07%
25
7.84%
24
7.52%
3
0.94%
PAR-RAPID
4
19
0.03%
10
52.63%
8
42.11%
1
5.26%
1
5.26%

Pembrokeshire

169
9178
12.35%
697
7.59%
8156
88.86%
334
3.64%
262
2.85%
56
0.61%
PAR-HERD-S
1
18
0.02%
1
5.56%
15
83.33%
3
16.67%
2
11.11%

PAR-IR-EX
13
64
0.09%
38
59.38%
21
32.81%
4
6.25%
4
6.25%
1
1.56%
PAR-IR-SEV
72
618
0.83%
261
42.23%
333
53.88%
27
4.37%
22
3.56%
1
0.16%
PAR-NEW-IN
1
3
0.00%

3
100.00%
1
33.33%

PAR-OTHER
4
104
0.14%
19
18.27%
83
79.81%
3
2.88%
2
1.92%

PAR-PERSIS
32
4073
5.48%
222
5.45%
3713
91.16%
160
3.93%
116
2.85%
16
0.39%
PAR-RAPID
27
97
0.13%
21
21.65%
64
65.98%
4
4.12%
4
4.12%
8
8.25%
PAR-RECUR
19
4201
5.65%
135
3.21%
3924
93.41%
132
3.14%
112
2.67%
30
0.71%
Powys

48
3806
5.12%
216
5.68%
3343
87.83%
190
4.99%
163
4.28%
84
2.21%
PAR-IR-EX
3
11
0.01%
4
36.36%
5
45.45%
2
18.18%
2
18.18%

PAR-IR-SEV
11
50
0.07%
11
22.00%
34
68.00%
5
10.00%
5
10.00%

PAR-PERSIS
15
3304
4.45%
165
4.99%
2926
88.56%
150
4.54%
130
3.93%
83
2.51%
PAR-RAPID
11
39
0.05%
18
46.15%
20
51.28%
1
2.56%
1
2.56%

PAR-RECUR
8
402
0.54%
18
4.48%
358
89.05%
32
7.96%
25
6.22%
1
0.25%
South Wales

28
1182
1.59%
149
12.61%
949
80.29%
93
7.87%
80
6.77%
4
0.34%
PAR-IR-EX
1
2
0.00%
1
50.00%
1
50.00%

PAR-IR-SEV
6
37
0.05%
21
56.76%
15
40.54%
1
2.70%
1
2.70%

PAR-OTHER
6
417
0.56%
61
14.63%
325
77.94%
37
8.87%
29
6.95%
2
0.48%
PAR-PERSIS
8
575
0.77%
42
7.30%
503
87.48%
35
6.09%
30
5.22%

PAR-RAPID
3
16
0.02%
7
43.75%
9
56.25%

PAR-RECUR
4
135
0.18%
17
12.59%
96
71.11%
20
14.81%
20
14.81%
2
1.48%
Wales - Intermediate

86
4479
6.03%
282
6.30%
3958
88.37%
267
5.96%
191
4.26%
41
0.92%
Carmarthenshire

1
2
0.00%
1
50.00%
1
50.00%

PAR-RAPID
1
2
0.00%
1
50.00%
1
50.00%

Ceredigion

5
191
0.26%
46
24.08%
140
73.30%
6
3.14%
4
2.09%
1
0.52%
PAR-IR-SEV
1
4
0.01%
4
100.00%

PAR-PERSIS
2
181
0.24%
39
21.55%
137
75.69%
6
3.31%
4
2.21%
1
0.55%
PAR-RAPID
2
6
0.01%
3
50.00%
3
50.00%

Cheshire

3
323
0.43%
4
1.24%
286
88.54%
6
1.86%
6
1.86%
27
8.36%
PAR-NEW-IN
3
323
0.43%
4
1.24%
286
88.54%
6
1.86%
6
1.86%
27
8.36%
North East Wales

52
2619
3.52%
148
5.65%
2346
89.58%
157
5.99%
108
4.12%
10
0.38%
PAR-IR-EX
6
28
0.04%
8
28.57%
18
64.29%
2
7.14%
2
7.14%

PAR-IR-SEV
16
92
0.12%
31
33.70%
58
63.04%
3
3.26%
3
3.26%

PAR-NEW-IN
20
1621
2.18%
91
5.61%
1441
88.90%
114
7.03%
84
5.18%
5
0.31%
PAR-PERSIS
6
865
1.16%
17
1.97%
817
94.45%
38
4.39%
19
2.20%
5
0.58%
PAR-RAPID
3
3
0.00%
1
33.33%
2
66.67%

SER-FLEXI
1
10
0.01%

10
100.00%

Powys

20
1329
1.79%
76
5.72%
1177
88.56%
98
7.37%
73
5.49%
3
0.23%
PAR-IR-EX
1
2
0.00%
2
100.00%

PAR-IR-SEV
2
17
0.02%
6
35.29%
10
58.82%

1
5.88%
PAR-NEW-IN
9
981
1.32%
41
4.18%
883
90.01%
72
7.34%
55
5.61%
2
0.20%
PAR-RAPID
3
7
0.01%
1
14.29%
6
85.71%

PAR-RECUR
3
39
0.05%
2
5.13%
33
84.62%
5
12.82%
4
10.26%

SER-FLEXI
2
283
0.38%
24
8.48%
245
86.57%
21
7.42%
14
4.95%

South Wales

5
15
0.02%
7
46.67%
8
53.33%

PAR-OTHER
1
9
0.01%
5
55.56%
4
44.44%

PAR-RAPID
4
6
0.01%
2
33.33%
4
66.67%

Wales - Low TB

56
3016
4.06%
121
4.01%
2713
89.95%
188
6.23%
164
5.44%
18
0.60%
North East Wales

32
1758
2.37%
91
5.18%
1573
89.48%
94
5.35%
80
4.55%
14
0.80%
PAR-IR-EX
1
1
0.00%
1
100.00%

PAR-IR-SEV
3
9
0.01%
2
22.22%
2
22.22%

5
55.56%
PAR-NEW-IN
19
1161
1.56%
43
3.70%
1065
91.73%
61
5.25%
51
4.39%
2
0.17%
SER-FLEXI
9
587
0.79%
45
7.67%
506
86.20%
33
5.62%
29
4.94%
7
1.19%
North West Wales

24
1258
1.69%
30
2.38%
1140
90.62%
94
7.47%
84
6.68%
4
0.32%
PAR-NEW-IN
24
1258
1.69%
30
2.38%
1140
90.62%
94
7.47%
84
6.68%
4
0.32%
Total
943
74329
100.00%
4473
6.02%
65704
88.40%
4260
5.73%
3424
4.61%
594
0.80%

Table 3a. Summary of IFN Gamma results by country & protocol April 2025
Country Totals
Country

No Subs No
Samples
% of Total No
Positive
% Positive
No
Negative
%
Negative
No
Retest
%
Retest
No
Resample
%
Resample
No
Rejected
% Rejected
England

119
11226

620
5.52%
9960
88.72%
650
5.79%
436
3.88%
121
1.08%
Parallel
116
10899
97.1 %
552
5.06%
9713
89.12%
638
5.85%
432
3.96%
121
1.11%
Serial / Extended
3
327
2.9 %
68
20.80%
247
75.54%
12
3.67%
4
1.22%

Scotland

10
xx-xxxx-xxxx

69
4.07%
1577
93.04%
73
4.31%
23
1.36%

Parallel
10
xx-xxxx-xxxx
100.0 %
69
4.07%
1577
93.04%
73
4.31%
23
1.36%

Wales

118
8651

294
3.40%
8048
93.03%
302
3.49%
218
2.52%
72
0.83%
Parallel
116
8637
99.8 %
293
3.39%
8038
93.06%
297
3.44%
215
2.49%
72
0.83%
Serial / Extended
2
14
0.2 %
1
7.14%
10
71.43%
5
35.71%
3
21.43%

Total
247
21572

983
4.56%
19585
90.79%
1025
4.75%
677
3.14%
193
0.89%
GB Totals
Protocol
No Subs No
Samples
% of Total No
Positive
% Positive
No
Negative
%
Negative
No
Retest
%
Retest
No
Resample
%
Resample
No
Rejected
% Rejected

Parallel
242
21231
98.4 %
914
4.31%
19328
91.04%
1008
4.75%
670
3.16%
193
0.91%
Serial / Extended
5
341
1.6 %
69
20.23%
257
75.37%
17
4.99%
7
2.05%

Total
247
21572

983
4.56%
19585
90.79%
1025
4.75%
677
3.14%
193
0.89%

Table 3b. Summary of IFN Gamma results by country & protocol (YTD)
Country Totals
Country
No Subs No
Samples
% of Total No
Positive
% Positive No
Negative
% Negative No
Retest
% Retest No
Resample
% Resample No
Rejected
% Rejected
England

428
45839

2485
5.42%
40556
88.47%
2849
6.22%
2331
5.09%
378
0.82%
Parallel
421
45469
99.2 %
2404
5.29%
40280
88.59%
2836
6.24%
2326
5.12%
378
0.83%
Serial / Extended
7
370
0.8 %
81
21.89%
276
74.59%
13
3.51%
5
1.35%

Scotland

22
2690

77
2.86%
2511
93.35%
140
5.20%
73
2.71%
3
0.11%
Parallel
22
2690
100.0 %
77
2.86%
2511
93.35%
140
5.20%
73
2.71%
3
0.11%
Wales

493
25800

1911
7.41%
22637
87.74%
1271
4.93%
1020
3.95%
213
0.83%
Parallel
471
24422
94.7 %
1730
7.08%
21506
88.06%
1196
4.90%
962
3.94%
205
0.84%
Serial / Extended
22
1378
5.3 %
181
13.13%
1131
82.08%
75
5.44%
58
4.21%
8
0.58%
Total
943
74329

4473
6.02%
65704
88.40%
4260
5.73%
3424
4.61%
594
0.80%
GB Totals
Protocol
No Subs No
Samples
% of Total No
Positive
% Positive No
Negative
% Negative No
Retest
% Retest No
Resample
% Resample No
Rejected
% Rejected
Parallel
914
72581
97.6 %
4211
5.80%
64297
88.59%
4172
5.75%
3361
4.63%
586
0.81%
Serial / Extended
29
1748
2.4 %
262
14.99%
1407
80.49%
88
5.03%
63
3.60%
8
0.46%
Total
943
74329

4473
6.02%
65704
88.40%
4260
5.73%
3424
4.61%
594
0.80%

Table 4a. Summary of IFN Gamma results by submission reason April 2025
Country/Risk Totals
Country/Risk
No
Subs
Samples % of Total Gamma
Positive
% Positive Gamma
Negative
% Negative Retest % Retest Resample % Resample Rejected % Rejected
England - HRA

50
5209
24.15%
375
7.20%
4525
86.87%
373
7.16%
249
4.78%
12
0.23%
PAR-CHR
5
990
4.59%
33
3.33%
916
92.53%
43
4.34%
18
1.82%
2
0.20%
PAR-OTHER
6
477
2.21%
26
5.45%
376
78.83%
79
16.56%
71
14.88%
1
0.21%
PAR-PERSIS
5
423
1.96%
88
20.80%
307
72.58%
31
7.33%
20
4.73%

PAR-RECUR
33
3177
14.73%
165
5.19%
2854
89.83%
213
6.70%
140
4.41%
9
0.28%
SER-FLEXI
1
142
0.66%
63
44.37%
72
50.70%
7
4.93%

England - Edge

56
5262
24.39%
212
4.03%
4768
90.61%
221
4.20%
151
2.87%
102
1.94%
PAR-NEW-IN
39
3762
17.44%
165
4.39%
3366
89.47%
163
4.33%
107
2.84%
102
2.71%
PAR-OTHER
3
29
0.13%
1
3.45%
23
79.31%
7
24.14%
5
17.24%

PAR-PERSIS
1
325
1.51%
22
6.77%
296
91.08%
7
2.15%
7
2.15%

PAR-RECUR
11
961
4.45%
19
1.98%
908
94.48%
39
4.06%
28
2.91%

SER-FLEXI
2
185
0.86%
5
2.70%
175
94.59%
5
2.70%
4
2.16%

England - LRA

13
755
3.50%
33
4.37%
667
88.34%
56
7.42%
36
4.77%
7
0.93%
PAR-NEW-IN
13
755
3.50%
33
4.37%
667
88.34%
56
7.42%
36
4.77%
7
0.93%
Scotland - Scotland

10
xx-xxxx-xxxx
7.86%
69
4.07%
1577
93.04%
73
4.31%
23
1.36%

PAR-NEW-IN
10
xx-xxxx-xxxx
7.86%
69
4.07%
1577
93.04%
73
4.31%
23
1.36%

Wales - High TB

79
6487
30.07%
245
3.78%
6059
93.40%
185
2.85%
131
2.02%
40
0.62%
PAR-IR-EX
7
35
0.16%
18
51.43%
16
45.71%
1
2.86%
1
2.86%

PAR-IR-SEV
24
169
0.78%
42
24.85%
122
72.19%
5
2.96%
4
2.37%

PAR-OTHER
5
238
1.10%
16
6.72%
214
89.92%
8
3.36%
2
0.84%
1
0.42%
PAR-PERSIS
16
2174
10.08%
67
3.08%
2051
94.34%
72
3.31%
42
1.93%
8
0.37%
PAR-RAPID
12
51
0.24%
15
29.41%
35
68.63%
1
1.96%
1
1.96%

PAR-RECUR
15
3820
17.71%
87
2.28%
3621
94.79%
98
2.57%
81
2.12%
31
0.81%
Wales - Intermediate TB

20
1181
5.47%
29
2.46%
1083
91.70%
48
4.06%
30
2.54%
32
2.71%
PAR-IR-EX
2
4
0.02%
2
50.00%
2
50.00%

PAR-IR-SEV
6
35
0.16%
14
40.00%
21
60.00%

PAR-NEW-IN
6
414
1.92%
7
1.69%
364
87.92%
18
4.35%
16
3.86%
27
6.52%
PAR-PERSIS
3
725
3.36%
6
0.83%
693
95.59%
30
4.14%
14
1.93%
5
0.69%
PAR-RAPID
3
3
0.01%

3
100.00%

Wales - Low TB

19
983
4.56%
20
2.03%
906
92.17%
69
7.02%
57
5.80%

PAR-IR-EX
1
1
0.00%
1
100.00%

PAR-NEW-IN
16
968
4.49%
18
1.86%
896
92.56%
64
6.61%
54
5.58%

SER-FLEXI
2
14
0.06%
1
7.14%
10
71.43%
5
35.71%
3
21.43%

Total
247
21572
100.00%
983
4.56%
19585
90.79%
1025
4.75%
677
3.14%
193
0.89%
GB Totals
SUBMISSION_REASON

No
Subs
Samples % of Total Gamma
Positive
% Positive Gamma
Negative
% Negative Retest % Retest Resample % Resample Rejected % Rejected
PAR-CHR
5
990
4.59%
33
3.33%
916
92.53%
43
4.34%
18
1.82%
2
0.20%
PAR-IR-EX
10
40
0.19%
21
52.50%
18
45.00%
1
2.50%
1
2.50%

PAR-IR-SEV
30
204
0.95%
56
27.45%
143
70.10%
5
2.45%
4
1.96%

PAR-NEW-IN
84
7594
35.20%
292
3.85%
6870
90.47%
374
4.92%
236
3.11%
136
1.79%
PAR-OTHER
14
744
3.45%
43
5.78%
613
82.39%
94
12.63%
78
10.48%
2
0.27%
PAR-PERSIS
25
3647
16.91%
183
5.02%
3347
91.77%
140
3.84%
83
2.28%
13
0.36%
PAR-RAPID
15
54
0.25%
15
27.78%
38
70.37%
1
1.85%
1
1.85%

PAR-RECUR
59
7958
36.89%
271
3.41%
7383
92.77%
350
4.40%
249
3.13%
40
0.50%
SER-FLEXI
5
341
1.58%
69
20.23%
257
75.37%
17
4.99%
7
2.05%

Total
247
21572
100.00%
983
4.56%
19585
90.79%
1025
4.75%
677
3.14%
193
0.89%

Table 4b. Summary of IFN Gamma results by submission reason (YTD)
Country Totals
Country
No Subs Samples % of Total Gamma Positive % Positive Gamma Negative % Negative Retest % Retest Resample % Resample Rejected % Rejected
England

428
45839
61.67%
2485
5.42%
40556
88.47%
2849
6.22%
2331
5.09%
378
0.82%
England - HRA

213
24256
32.63%
1563
6.44%
21167
87.27%
1652
6.81%
1354
5.58%
124
0.51%
PAR-CHR
13
2451
3.30%
110
4.49%
2198
89.68%
141
5.75%
105
4.28%
17
0.69%
PAR-CUL-N
1
2
0.00%

2
100.00%

PAR-CUL-P
5
660
0.89%
37
5.61%
598
90.61%
31
4.70%
25
3.79%

PAR-OTHER
25
2235
3.01%
206
9.22%
1868
83.58%
176
7.87%
156
6.98%
2
0.09%
PAR-PERSIS
18
2011
2.71%
211
10.49%
xx-xxxx-xxxx
83.54%
130
6.46%
107
5.32%
5
0.25%
PAR-RECUR
147
16723
22.50%
923
5.52%
14731
88.09%
1166
6.97%
960
5.74%
100
0.60%
SER-FLEXI
4
174
0.23%
76
43.68%
90
51.72%
8
4.60%
1
0.57%

England - Edge

161
16365
22.02%
722
4.41%
14708
89.87%
899
5.49%
734
4.49%
172
1.05%
PAR-NEW-IN
103
9877
13.29%
474
4.80%
8767
88.76%
554
5.61%
450
4.56%
164
1.66%
PAR-OTHER
12
1239
1.67%
55
4.44%
1113
89.83%
86
6.94%
70
5.65%
1
0.08%
PAR-PERSIS
3
476
0.64%
25
5.25%
441
92.65%
13
2.73%
10
2.10%

PAR-RECUR
41
4588
6.17%
163
3.55%
4212
91.80%
241
5.25%
200
4.36%
7
0.15%
SER-FLEXI
2
185
0.25%
5
2.70%
175
94.59%
5
2.70%
4
2.16%

England - LRA

54
5218
7.02%
200
3.83%
4681
89.71%
298
5.71%
243
4.66%
82
1.57%
PAR-NEW-IN
53
5207
7.01%
200
3.84%
4670
89.69%
298
5.72%
243
4.67%
82
1.57%
SER-NSR
1
11
0.01%

11
100.00%

Scotland

22
2690
3.62%
77
2.86%
2511
93.35%
140
5.20%
73
2.71%
3
0.11%
Scotland - Scotland

22
2690
3.62%
77
2.86%
2511
93.35%
140
5.20%
73
2.71%
3
0.11%
PAR-NEW-IN
22
2690
3.62%
77
2.86%
2511
93.35%
140
5.20%
73
2.71%
3
0.11%
Wales

493
25800
34.71%
1911
7.41%
22637
87.74%
1271
4.93%
1020
3.95%
213
0.83%
Wales - High TB

351
18305
24.63%
1508
8.24%
15966
87.22%
816
4.46%
665
3.63%
154
0.84%
PAR-HERD-S
1
18
0.02%
1
5.56%
15
83.33%
3
16.67%
2
11.11%

PAR-IR-EX
22
92
0.12%
50
54.35%
35
38.04%
6
6.52%
6
6.52%
1
1.09%
PAR-IR-SEV
119
914
1.23%
348
38.07%
529
57.88%
44
4.81%
35
3.83%
1
0.11%
PAR-NEW-IN
1
3
0.00%

3
100.00%
1
33.33%

PAR-OTHER
15
683
0.92%
85
12.45%
557
81.55%
47
6.88%
33
4.83%
3
0.44%
PAR-PERSIS
77
9774
13.15%
552
5.65%
8770
89.73%
426
4.36%
342
3.50%
104
1.06%
PAR-RAPID
66
228
0.31%
85
37.28%
126
55.26%
9
3.95%
9
3.95%
8
3.51%
PAR-RECUR
40
6095
8.20%
275
4.51%
5561
91.24%
259
4.25%
223
3.66%
36
0.59%
SER-FLEXI
10
498
0.67%
112
22.49%
370
74.30%
21
4.22%
15
3.01%
1
0.20%
Wales - Intermediate

86
4479
6.03%
282
6.30%
3958
88.37%
267
5.96%
191
4.26%
41
0.92%
PAR-IR-EX
7
30
0.04%
10
33.33%
18
60.00%
2
6.67%
2
6.67%

PAR-IR-SEV
19
113
0.15%
41
36.28%
68
60.18%
3
2.65%
3
2.65%
1
0.88%
PAR-NEW-IN
32
2925
3.94%
136
4.65%
2610
89.23%
192
6.56%
145
4.96%
34
1.16%
PAR-OTHER
1
9
0.01%
5
55.56%
4
44.44%

PAR-PERSIS
8
1046
1.41%
56
5.35%
954
91.20%
44
4.21%
23
2.20%
6
0.57%
PAR-RAPID
13
24
0.03%
8
33.33%
16
66.67%

PAR-RECUR
3
39
0.05%
2
5.13%
33
84.62%
5
12.82%
4
10.26%

SER-FLEXI
3
293
0.39%
24
8.19%
255
87.03%
21
7.17%
14
4.78%

Wales - Low TB

56
3016
4.06%
121
4.01%
2713
89.95%
188
6.23%
164
5.44%
18
0.60%
PAR-IR-EX
1
1
0.00%
1
100.00%

PAR-IR-SEV
3
9
0.01%
2
22.22%
2
22.22%

5
55.56%
PAR-NEW-IN
43
2419
3.25%
73
3.02%
2205
91.15%
155
6.41%
135
5.58%
6
0.25%
SER-FLEXI
9
587
0.79%
45
7.67%
506
86.20%
33
5.62%
29
4.94%
7
1.19%
Total
943
74329
100.00%
4473
6.02%
65704
88.40%
4260
5.73%
3424
4.61%
594
0.80%
GB Totals
Submission
Reason

No Subs Samples % of Total Gamma Positive % Positive Gamma Negative % Negative Retest % Retest Resample % Resample Rejected % Rejected
PAR-CHR
13
2451
3.30%
110
4.49%
2198
89.68%
141
5.75%
105
4.28%
17
0.69%
PAR-CUL-N
1
2
0.00%

2
100.00%

PAR-CUL-P
5
660
0.89%
37
5.61%
598
90.61%
31
4.70%
25
3.79%

PAR-HERD-S
1
18
0.02%
1
5.56%
15
83.33%
3
16.67%
2
11.11%

PAR-IR-EX
30
123
0.17%
61
49.59%
53
43.09%
8
6.50%
8
6.50%
1
0.81%
PAR-IR-SEV
141
1036
1.39%
391
37.74%
599
57.82%
47
4.54%
38
3.67%
7
0.68%
PAR-NEW-IN
254
23121
31.11%
960
4.15%
20766
89.81%
1340
5.80%
1046
4.52%
289
1.25%
PAR-OTHER
53
4166
5.60%
351
8.43%
3542
85.02%
309
7.42%
259
6.22%
6
0.14%
PAR-PERSIS
106
13307
17.90%
844
6.34%
11845
89.01%
613
4.61%
482
3.62%
115
0.86%
PAR-RAPID
79
252
0.34%
93
36.90%
142
56.35%
9
3.57%
9
3.57%
8
3.17%
PAR-RECUR
231
27445
36.92%
1363
4.97%
24537
89.40%
1671
6.09%
1387
5.05%
143
0.52%
SER-FLEXI
28
1737
2.34%
262
15.08%
1396
80.37%
88
5.07%
63
3.63%
8
0.46%
SER-NSR
1
11
0.01%

11
100.00%

Total
943
74329
100.00%
4473
6.02%
65704
88.40%
4260
5.73%
3424
4.61%
594
0.80%

Table 5a. Summary of PM and culture results for IFNg positive animals
Year

Month
Herds
Sampled
Samples
Tested
Herds
with
Positives
IFNG+
Samples
Wrong
Ear
Tags
NoPM
/ No
Cult
NoPM /
Cult
Pend
NoPM
/ Cult
Neg
NoPM
/ Cult
Mb
NoPM
/ Cult
Other
VL /
No
Cult
VL /
Cult
Neg
VL /
Cult
Pen
VL /
Cult
Mb
VL /
Cult
Other
NVL /
No
Cult
NVL /
Cult
Pen
NVL /
Cult
Neg
NVL
/ Cult
Mb
NVL /
Cult
Other
2024
May
207
15411
129
733

11
3

9

657

53

2024
June
197
18101
133
797

9

32
1

19

720

2

14
2024
July
223
19494
124
825

7

25
4

20

753
1
7
1
6
2024
August
197
14635
123
639

25

21
2

17

551
1
21

2024
September
174
11490
104
803

20

88
7

8
2
673

5

2024
October
243
20535
159
1136

11

35
8

30

1035

19

2024
November
248
18671
155
1039
1
8

79
7

19

890

35

2024
December
185
14677
117
942

13

73
5
1
37

798

15

2025
January
251
22868
167
1556
5
26

61
1

29
7
1426

1

2025
February
243
16364
156
1178
1
28

38

15
10
1074

11

2025
March
202
13525
126
756

109

65

17
13

532
15
4

2025
April
247
21572
149
983
427
213

1

1

8
9

Total

2617
207343
xx-xxxx-xxxx
11387
434
469

529
38
19
216
19
9117
26
173
1
20

Table 5b. Summary of culture results for IFNg positive animals
(Samples received in last 12 months)
Country
Herds
Sampled
Samples
Tested
Herds
with
Positives
IFNG+
Samples
NoPM
/ No
Cult
NoPM /
Cult
Pend
NoPM /
Cult
Neg
NoPM /
Cult
Mb
NoPM
/ Cult
Other
VL /
No
Cult
VL /
Cult
Neg
VL /
Cult
Pen
VL /
Cult
Mb
VL /
Cult
Other
NVL /
No
Cult
NVL /
Cult
Pen
NVL /
Cult Neg
NVL /
Cult
Mb
NVL /
Cult
Other
England
1112
131460
720
6017
281

434
10
11
107
6
4584
21
110
1

Scotland
49
8330
35
224

3

14

125
1
11

Wales
1456
67553
887
5146
188

95
25
8
95
13
4408
4
52

20
Total
2617
207343
xx-xxxx-xxxx
11387
469

529
38
19
216
19
9117
26
173
1
20

Figure 4a. Number of herds sampled for IFNg and numbers of herds with any positive
IFNg results.
Herds with Negatives and Herds with Positives by ISO Year, Month Of Year and Month Name
Month Name
Herds with Negatives and Herds with Po…
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
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
2023
2024
2025
105
118
107
85
96
95
101
112
109
114
93
69
63
98
73
91
78
64
99
74
70
84
93
68
84
87
76
98
176
147
159
118
112
94
108
140
112
139
157
114
171
159
142
146
129
133
124
123
104
159
155
117
167
156
126
149
Herds with Negatives
Herds with Positives

Figure 4b. Number of animals sampled for IFNg and numbers of animals with positive
IFNg results.
IFNg results by Year and Month
Month Name
IFNg Non Positive Animals and IFNg Po…
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
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
2023
2024
2025
21875
16068
18640
15245
13166
15787
17758
19561
xx-xxxx-xxxx
20754
13033
20306
18506 18373 17401
14468
17182 18485
13771
10556
19096
17063
13365
20912
14879
12528
19774
1138
1036
867
782
867
825
1277
892
1434
1189
1054
1092
733
797
825
803
1136
1039
941
1552
1178
756
964
IFNg Non Positive Animals
IFNg Positive Animals

Figure 5. Rates of resamples including the fail rates broken down
for positive (POS) and negative (NEG) controls
% Resample, % Rejected, % Pos Fail and % Neg Fail by ISO Year, Month Of Year and Month Name
0%
2%
4%
6%
8%
10%
Month Name
% Resample, % Rejected, % Pos Fail and…
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
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
2023
2024
2025
6.11%
3.14%
9.91%
3.79%
5.82%
7.97%
4.24%
6.01%
6.68%
3.64%
3.57%
5.12%
5.09%
4.06%
4.82%
4.18%
5.75%
5.25%
3.93%
5.18%
4.92%
3.97%
4.65%
4.51%
6.37%
4.65%
3.69%
4.35%
5.74%
0.89%
0.10%
5.18%
3.72%
0.22%
0.65%
0.33%
0.24%
1.56%
0.16%
0.73%
0.64%
1.05%
0.28%
0.36%
0.49%
0.35%
0.52%
0.23%
1.23%
0.94%
0.66%
0.10%
1.77%
0.24%
0.46%
0.32%
0.19%
0.96%
3.51%
0.29%
2.57%
0.29%
1.77%
0.95%
0.48%
1.61%
0.49%
3.42%
1.90%
0.44%
0.96%
0.71%
0.58%
0.32%
1.85%
0.73%
3.25%
3.45%
2.29%
1.79%
0.74%
1.76%
0.35%
2.19%
9.57%
1.38%
1.39%
5.50%
7.58%
5.99%
5.69%
2.84%
3.23%
2.46%
1.72%
1.62%
4.93%
2.15%
4.74%
5.03%
3.91%
1.85%
3.05%
1.50%
1.48%
2.21%
4.17%
1.82%
3.60%
5.86%
% Resample
% Rejected
% Pos Fail
% Neg Fail

Figure 6. Proportion of samples retested, or requiring a resample April 2025
0%
20%
40%
60%
80%
100%
Ayrshire
Bedfordshire
Berkshire
Buckinghamshire
Carmarthenshire
Ceredigion
Cheshire
Cornwall and Isles of Scilly
Cumbria
Derbyshire
Devon
Dorset
Dumfries & Galloway
East Riding and North Lincolns
East Sussex
Essex
Fife
Gloucestershire
Hampshire
Herefordshire
Isle of Wight
Leicestershire and Rutland
Lincolnshire
North East Wales
North West Wales
Northern Somerset & South …
Oxfordshire
Pembrokeshire
Powys
Shropshire
Somerset excl North
South Wales
Staffordshire
Warwickshire
Wiltshire
8.26%
10.74%
33.33%
50.00%
7.39%
10.53%
8.74%
11.57%
12.97%
33.33%
10.53%
50.00%
8.47%
10.53%
10.58%
% Resample
% Retest
County Name
% Resample % Retest
Ayrshire

5.18%
Bedfordshire
8.26%
11.57%
Berkshire
3.30%
3.46%
Buckinghamshire
1.26%
1.89%
Carmarthenshire
2.99%
3.82%
Ceredigion

2.65%
Cheshire
3.16%
3.74%
Cornwall and Isles of Scilly
3.70%
5.56%
Cumbria
4.19%
5.09%
Derbyshire
3.71%
5.08%
Devon
10.74%
12.97%
Dorset
33.33%
33.33%
Dumfries & Galloway
1.50%
4.23%
East Riding and North Lincolns
6.67%
6.67%
East Sussex
2.69%
3.23%
Essex
2.26%
10.53%
Fife
1.63%
4.08%
Gloucestershire
50.00%
50.00%
Hampshire
6.45%
6.45%
Herefordshire

4.89%
Isle of Wight

6.90%
Leicestershire and Rutland
3.23%
5.16%
Lincolnshire
4.67%
6.54%
North East Wales
3.15%
5.04%
North West Wales
7.39%
8.47%
Northern Somerset & South Glou
0.84%
3.36%
Oxfordshire
2.12%
3.76%
Pembrokeshire
1.90%
2.64%
Powys
10.53%
10.53%
Shropshire
4.36%
7.29%
Somerset excl North
1.82%
3.18%
South Wales
1.20%
2.99%
Staffordshire
8.74%
10.58%
Warwickshire
0.91%
1.82%
Wiltshire
1.22%
3.85%
Total
3.14%
4.75%

Table 6. Number of animals and submissions tested
Table 6a (i): Number of animals and submissions tested
Country
No. Animals No of IFNg+ animals % Positive Animals No Samples No IFNG+ Samples % Positive Samples
England
10929
620
5.7 %
11226
620
5.52%
Scotland
1296
50
3.9 %
xx-xxxx-xxxx
69
4.07%
Wales
8514
294
3.5 %
8651
294
3.40%
Total
20738
964
4.6 %
21572
983
4.56%
Table 6a (ii): Number of animals and submissions tested
Country
No. Animals No of IFNg+ animals % Positive Animals No Samples No IFNG+ Samples % Positive Samples
England
11278
614
5.4 %
11611
614
5.29%
Scotland
31
1
3.2 %
31
1
3.23%
Wales
7184
477
6.6 %
7327
477
6.51%
Total
18493
1092
5.9 %
18969
1092
5.76%
Table 6b (i): Number of animals and submissions tested
Country
No. Animals No of IFNg+ animals % Positive Animals No Samples No IFNG+ Samples % Positive Samples
England
43409
2485
5.7 %
45839
2485
5.42%
Scotland
2248
58
2.6 %
2690
77
2.86%
Wales
24863
1907
7.7 %
25800
1911
7.41%
Total
70518
4450
6.3 %
74329
4473
6.02%
Table 6b (ii): Number of animals and submissions tested
Country
No. Animals No of IFNg+ animals % Positive Animals No Samples No IFNG+ Samples % Positive Samples
England
49269
2807
5.7 %
51987
2811
5.41%
Scotland
808
20
2.5 %
869
20
2.30%
Wales
27156
1942
7.2 %
28494
1942
6.82%
Total
77230
4769
6.2 %
81350
4773
5.87%
April 2025
April 2024
YTD April 2025
YTD April 2024

Tables 7a and 7b Number of private samples (month and YTD)
Table 7a Number of private samples (month)
County Name Test Type* No of Submissions Number of Samples Positive %Positive
Devon
PRV-SP
1
3

Hampshire
PRV-SP
1
1

Total

2
4

Table 7b Number of private samples (YTD)
County Name
Test Type* No of Submissions Number of Samples Positive %Positive
Devon
PRV-SE
1
63
16
25.40%
Gloucestershire PRV-SE
2
94
17
18.09%
Wiltshire
PRV-SE
2
18

Berkshire
PRV-SP
1
4

Cheshire
PRV-SP
1
1
1
100.00%
Devon
PRV-SP
1
3

Hampshire
PRV-SP
1
1

Total

9
184
34
18.48%
*SER-IOM: Serial
High Specificity test
– Isle of Man; PRV-
SE: Private High
Sensitivity test -
England; PRV-SP:
Private High
Specificity test –
England

Table 8a Number of Cattle Antibody Tests April 2025
Country Totals
Country
Num Submissions Num Samples Tested Num Positive Samples % Positive
England

2
120
4
3.33%
Northern Somerset & South Gloucestershire

1
99
1
1.01%
BOV-OTHER
1
99
1
1.01%
Wiltshire

1
21
3
14.29%
BOV-P
1
21
3
14.29%
Wales

29
365
41
11.23%
Carmarthenshire

6
59
3
5.08%
BOV-IR-C
6
59
3
5.08%
Ceredigion

1
23
5
21.74%
BOV-IR-C
1
23
5
21.74%
North East Wales

4
138
5
3.62%
BOV-IR-C
2
10
1
10.00%
BOV-IR-EX
1
1
1
100.00%
BOV-P
1
127
3
2.36%
Pembrokeshire

14
111
22
19.82%
BOV-IR-C
11
86
11
12.79%
BOV-IR-EX
3
25
11
44.00%
Powys

4
34
6
17.65%
BOV-IR-C
4
34
6
17.65%
Total
31
485
45
9.28%

Table 8b Number of Cattle Antibody Tests YTD
Country Totals
Country
Num Submissions Num Samples Tested Num Positive Samples % Positive
England

6
749
44
5.87%
Cheshire

2
420
30
7.14%
BOV-P
2
420
30
7.14%
Northern Somerset & South Gloucestershire

1
99
1
1.01%
BOV-OTHER
1
99
1
1.01%
Wiltshire

3
230
13
5.65%
BOV-OTHER
1
178
9
5.06%
BOV-P
2
52
4
7.69%
Wales

147
1760
306
17.39%
Carmarthenshire

22
149
23
15.44%
BOV-IR-C
20
140
20
14.29%
BOV-IR-EX
2
9
3
33.33%
Ceredigion

9
73
28
38.36%
BOV-IR-C
7
69
26
37.68%
BOV-IR-EX
2
4
2
50.00%
North East Wales

20
621
56
9.02%
BOV-IR-C
14
89
24
26.97%
BOV-IR-EX
3
8
6
75.00%
BOV-P
3
524
26
4.96%
Pembrokeshire

73
700
170
24.29%
BOV-IR-C
63
640
147
22.97%
BOV-IR-EX
10
60
23
38.33%
Powys

14
152
22
14.47%
BOV-IR-C
12
91
13
14.29%
BOV-IR-EX
1
5
2
40.00%
BOV-OTHER
1
56
7
12.50%
South Wales

9
65
7
10.77%
BOV-IR-C
7
49
7
14.29%
BOV-IR-EX
1
2

BOV-OTHER
1
14

Total
153
2509
350
13.95%