Monthly Report: Surveillance Project SB4008 IFNg (TC0651 and TC0751) & Antibody (TC0077) tests for bovine tuberculosis-December 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 December 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 December 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: 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
YES (England only)
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-NEW-IN
Parallel blood IFNG testing to maximise the probability of removing all infected cattle in a new herd
breakdown in an of area of low incidence as soon as possible after confirmation of TB.
YES in Area of Low Incidence
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-PERSIS
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.
YES
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: 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: Voluntary Herd Test
(PAR-VOL)
Parallel interferon-gamma (IFNG) blood testing of skin test negative cattle in OTFW breakdown
herds that do not qualify for mandatory or APHA discretionary testing, on the keeper's request.
NO (at keeper's request)
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

12418
84.92%
PAR-CHR
613
4.19%
PAR-IR-EX
35
0.24%
PAR-IR-SEV
69
0.47%
PAR-NEW-IN
2113
14.45%
PAR-OTHER
739
5.05%
PAR-PERSIS
3719
25.43%
PAR-RAPID
75
0.51%
PAR-RECUR
5055
34.57%
PAR-VOL

1395
9.54%
PAR-VOL
1395
9.54%
Serial / Extended

811
5.55%
SER-FLEXI
799
5.46%
SER-OTHER
12
0.08%
Total
14624
100.00%
Country
Number of Samples % Samples
England
10187
69.66%
Scotland
203
1.39%
Wales
4234
28.95%
Total
14624
100.00%
Country
Number of Samples % Samples
England
144344
66.84%
Scotland
7369
3.41%
Wales
64249
29.75%
Total
215962
100.00%
Submissions
Number of Samples % Samples
Parallel

206247
95.50%
PAR-CHR
11688
5.41%
PAR-CUL-N
29
0.01%
PAR-CUL-P
987
0.46%
PAR-HERD-S
18
0.01%
PAR-IR-EX
468
0.22%
PAR-IR-SEV
2842
1.32%
PAR-NEW-IN
48398
22.41%
PAR-OTHER
14924
6.91%
PAR-PERSIS
38358
17.76%
PAR-RAPID
713
0.33%
PAR-RECUR
87822
40.67%
PAR-VOL

3877
1.80%
PAR-VOL
3877
1.80%
Serial / Extended

5838
2.70%
SER-FLEXI
5795
2.68%
SER-NSR
31
0.01%
SER-OTHER
12
0.01%
Total
215962
100.00%
196
Submissions
2,636
Submissions
Year to Date Totals
Table 1. Monthly Totals for December 2025
Monthly Totals for December 2025
Country
Number of Samples Rejects
Total (% of all Samples)
England
10187
14
0.14%
Scotland
203

Wales
4234
21
0.50%
Total
14624
35
0.24%
Country
Number of Samples Resamples Total (% of all Samples)
England
10187
385
3.78%
Scotland
203
10
4.93%
Wales
4234
157
3.71%
Total
14624
552
3.77%
Country
Number of Samples Retests
Total (% of all Samples)
England
10187
503
4.94%
Scotland
203
11
5.42%
Wales
4234
220
5.20%
Total
14624
734
5.02%
Country
Number of Samples Rejects
Total (% of all Samples)

England
144344
841
0.58%
Scotland
7369
51
0.69%
Wales
64249
481
0.75%
Total
215962
1373
0.64%
Country
Number of Samples Resamples Total (% of all Samples)
England
144344
6210
4.30%
Scotland
7369
332
4.51%
Wales
64249
2444
3.80%
Total
215962
8986
4.16%
Country
Number of Samples Retests
Total (% of all Samples)
England
144344
7845
5.43%
Scotland
7369
452
6.13%
Wales
64249
3121
4.86%
Total
215962
11418
5.29%

Figure 1. Number of samples submitted in each category December 2025
Submission Reason Number of Samples % Samples
PAR-CHR
613
4.19%
PAR-IR-EX
35
0.24%
PAR-IR-SEV
69
0.47%
PAR-NEW-IN
2113
14.45%
PAR-OTHER
739
5.05%
PAR-PERSIS
3719
25.43%
PAR-RAPID
75
0.51%
PAR-RECUR
5055
34.57%
PAR-VOL
1395
9.54%
SER-FLEXI
799
5.46%
SER-OTHER
12
0.08%
Total
14624
100.00%
No Samples by Submission Reason
PAR-RECUR 35%
PAR-PERSIS 25%
14%
10%
5%
PAR-OTHER 5%
PAR-CHR 4%
PAR-NEW-IN
PAR-VOL
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 2. Number of samples submitted in each category by County in December 2025
Number of Samples by Country from CPH, County and Reason
0
500
1000
1500
2000
Number of Samples
County
Buckinghamshire
Cheshire
Cornwall and Isles of Scilly
Cumbria
Devon
Gloucestershire
Greater Manchester
Hampshire
Herefordshire
Leicestershire and Rutland
Lincolnshire
Northamptonshire
Northern Somerset & South Glou
Nottinghamshire
Oxfordshire
Shropshire
Somerset excl North
South Yorkshire
Staffordshire
Wiltshire
Worcestershire
Ayrshire
North Eastern Scotland
Carmarthenshire
Ceredigion
North East Wales
North West Wales
Pembrokeshire
Powys
South Wales
England
Scotl…
Wales
251
313
112
187
337
424
254
314
72
131
164
308
87
223
98
985
415
341
611
569
449
337
528
281
1013
78
802
232
747
1017
222
733
282
130
250
797
Reason
PAR-CHR
PAR-IR-EX
PAR-IR-SEV
PAR-NEW-IN
PAR-OTHER
PAR-PERSIS
PAR-RAPID
PAR-RECUR
PAR-VOL
SER-FLEXI
SER-OTHER
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
5K
10K
15K
20K
Number of Samples
County
Bedfordshire
Berkshire
Buckinghamshire
Cambridgeshire
Cheshire
Cornwall and Isles of Scilly
Cumbria
Derbyshire
Devon
Dorset
Durham
East Riding and North Lincolns
East Sussex
Essex
Gloucestershire
Greater Manchester
Hampshire
Herefordshire
Hertfordshire
Kent
Lancashire
Leicestershire and Rutland
Lincolnshire
North Yorkshire
Northamptonshire
Northern Somerset & South Glou
Nottinghamshire
Oxfordshire
Shropshire
Somerset excl North
South Yorkshire
Staffordshire
Surrey
Warwickshire
West Midlands
West Sussex
West Yorkshire
Wiltshire
Worcestershire
Argyll and Bute
Ayrshire
Clyde Valley
Dumfries & Galloway
Fife
North Eastern Scotland
Carmarthenshire
Ceredigion
Cheshire
Gloucestershire
North East Wales
North West Wales
Pembrokeshire
Powys
South Wales
England
Scotland
Wales
2.4K
3.4K
2.1K
1.6K
1.4K
3.9K
4.1K
1.7K
1.6K
1.3K
5.7K
3.4K
1.3K
4.7K
8.2K
3.0K
2.5K
3.5K
1.9K
2.6K
3.4K
2.3K
1.5K
3.3K
2.2K
3.1K
9.5K
4.7K
4.2K
4.5K
12.6K
1.9K
3.7K
3.2K
4.3K
3.9K
7.6K
6.3K
6.6K
6.1K
1.5K
8.1K
5.0K
1.8K
1.5K
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
PAR-VOL
SER-FLEXI
SER-NSR
SER-OTHER
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 December 2025
Country
No Subs Samples % of Total
Gamma
Positive
% Positive
Gamma
Negative
% Negative
Retest % Retest Resample % Resample
Rejected % Rejected
England

105
10187
69.66%
660
6.48%
9128
89.60%
503
4.94%
385
3.78%
14
0.14%
England - HRA

62
6539
44.71%
512
7.83%
5740
87.78%
356
5.44%
277
4.24%
10
0.15%
Cornwall and Isles
of Scilly

8
578
3.95%
66
11.42%
465
80.45%
53
9.17%
37
6.40%
10
1.73%
PAR-PERSIS
2
12
0.08%
1
8.33%
9
75.00%
2
16.67%
2
16.67%

PAR-RECUR
4
281
1.92%
38
13.52%
211
75.09%
28
9.96%
22
7.83%
10
3.56%
PAR-VOL
1
282
1.93%
27
9.57%
242
85.82%
23
8.16%
13
4.61%

SER-OTHER
1
3
0.02%

3
100.00%

Devon

21
2017
13.79%
100
4.96%
1855
91.97%
84
4.16%
62
3.07%

PAR-CHR
1
1
0.01%

1
100.00%

PAR-OTHER
3
18
0.12%

14
77.78%
4
22.22%
4
22.22%

PAR-PERSIS
3
985
6.74%
43
4.37%
925
93.91%
22
2.23%
17
1.73%

PAR-RECUR
14
1013
6.93%
57
5.63%
915
90.33%
58
5.73%
41
4.05%

Gloucestershire

3
280
1.91%
13
4.64%
250
89.29%
19
6.79%
17
6.07%

PAR-CHR
1
251
1.72%
11
4.38%
230
91.63%
11
4.38%
10
3.98%

PAR-RECUR
2
29
0.20%
2
6.90%
20
68.97%
8
27.59%
7
24.14%

Herefordshire

4
875
5.98%
56
6.40%
790
90.29%
39
4.46%
29
3.31%

PAR-RECUR
1
78
0.53%
1
1.28%
67
85.90%
10
12.82%
10
12.82%

SER-FLEXI
3
797
5.45%
55
6.90%
723
90.72%
29
3.64%
19
2.38%

Northern Somerset
& South Glou

5
838
5.73%
66
7.88%
708
84.49%
77
9.19%
64
7.64%

PAR-CHR
1
36
0.25%

36
100.00%

PAR-RECUR
4
802
5.48%
66
8.23%
672
83.79%
77
9.60%
64
7.98%

Shropshire

5
336
2.30%
79
23.51%
243
72.32%
15
4.46%
14
4.17%

PAR-CHR
2
313
2.14%
76
24.28%
229
73.16%
9
2.88%
8
2.56%

PAR-RECUR
3
23
0.16%
3
13.04%
14
60.87%
6
26.09%
6
26.09%

Somerset excl North

4
156
1.07%
6
3.85%
145
92.95%
6
3.85%
5
3.21%

PAR-RECUR
1
26
0.18%

25
96.15%
1
3.85%
1
3.85%

PAR-VOL
3
130
0.89%
6
4.62%
120
92.31%
5
3.85%
4
3.08%

Staffordshire

6
756
5.17%
39
5.16%
699
92.46%
30
3.97%
18
2.38%

PAR-CHR
2
9
0.06%
3
33.33%
6
66.67%

PAR-RECUR
4
747
5.11%
36
4.82%
693
92.77%
30
4.02%
18
2.41%

Wiltshire

5
288
1.97%
40
13.89%
233
80.90%
16
5.56%
15
5.21%

PAR-CHR
1
3
0.02%

2
66.67%
1
33.33%
1
33.33%

PAR-RECUR
3
35
0.24%
4
11.43%
31
88.57%
1
2.86%

PAR-VOL
1
250
1.71%
36
14.40%
200
80.00%
14
5.60%
14
5.60%

Worcestershire

1
415
2.84%
47
11.33%
352
84.82%
17
4.10%
16
3.86%

PAR-PERSIS
1
415
2.84%
47
11.33%
352
84.82%
17
4.10%
16
3.86%

England - Edge

33
2890
19.76%
123
4.26%
2676
92.60%
122
4.22%
88
3.04%
3
0.10%
Buckinghamshire

5
640
4.38%
23
3.59%
604
94.38%
19
2.97%
13
2.03%

PAR-NEW-IN
2
112
0.77%
4
3.57%
104
92.86%
8
7.14%
4
3.57%

PAR-RECUR
3
528
3.61%
19
3.60%
500
94.70%
11
2.08%
9
1.70%

Cheshire

5
747
5.11%
29
3.88%
689
92.24%
41
5.49%
29
3.88%

PAR-RECUR
1
14
0.10%
1
7.14%
12
85.71%
1
7.14%
1
7.14%

PAR-VOL
4
733
5.01%
28
3.82%
677
92.36%
40
5.46%
28
3.82%

Greater Manchester

2
44
0.30%

43
97.73%
1
2.27%
1
2.27%

PAR-NEW-IN
2
44
0.30%

43
97.73%
1
2.27%
1
2.27%

Hampshire

4
337
2.30%
18
5.34%
314
93.18%
7
2.08%
3
0.89%
2
0.59%
PAR-NEW-IN
4
337
2.30%
18
5.34%
314
93.18%
7
2.08%
3
0.89%
2
0.59%
Leicestershire and
Rutland

4
424
2.90%
23
5.42%
389
91.75%
14
3.30%
12
2.83%

PAR-NEW-IN
4
424
2.90%
23
5.42%
389
91.75%
14
3.30%
12
2.83%

Northamptonshire

3
314
2.15%
12
3.82%
281
89.49%
25
7.96%
21
6.69%

PAR-NEW-IN
3
314
2.15%
12
3.82%
281
89.49%
25
7.96%
21
6.69%

Nottinghamshire

1
63
0.43%
3
4.76%
57
90.48%
3
4.76%
3
4.76%

PAR-NEW-IN
1
63
0.43%
3
4.76%
57
90.48%
3
4.76%
3
4.76%

Oxfordshire

9
321
2.20%
15
4.67%
299
93.15%
12
3.74%
6
1.87%
1
0.31%
PAR-NEW-IN
2
2
0.01%

2
100.00%
1
50.00%

PAR-OTHER
3
87
0.59%
5
5.75%
78
89.66%
6
6.90%
4
4.60%

PAR-RECUR
4
232
1.59%
10
4.31%
219
94.40%
5
2.16%
2
0.86%
1
0.43%
England - LRA

10
758
5.18%
25
3.30%
712
93.93%
25
3.30%
20
2.64%
1
0.13%
Cumbria

6
495
3.38%
14
2.83%
470
94.95%
15
3.03%
10
2.02%
1
0.20%
PAR-NEW-IN
5
187
1.28%
6
3.21%
178
95.19%
5
2.67%
3
1.60%

PAR-OTHER
1
308
2.11%
8
2.60%
292
94.81%
10
3.25%
7
2.27%
1
0.32%
Lincolnshire

2
254
1.74%
11
4.33%
234
92.13%
9
3.54%
9
3.54%

PAR-NEW-IN
2
254
1.74%
11
4.33%
234
92.13%
9
3.54%
9
3.54%

South Yorkshire

2
9
0.06%

8
88.89%
1
11.11%
1
11.11%

PAR-NEW-IN
2
9
0.06%

8
88.89%
1
11.11%
1
11.11%

Scotland

4
203
1.39%
1
0.49%
192
94.58%
11
5.42%
10
4.93%

Scotland - Scotland

4
203
1.39%
1
0.49%
192
94.58%
11
5.42%
10
4.93%

Ayrshire

3
72
0.49%

69
95.83%
3
4.17%
3
4.17%

PAR-NEW-IN
3
72
0.49%

69
95.83%
3
4.17%
3
4.17%

North Eastern
Scotland

1
131
0.90%
1
0.76%
123
93.89%
8
6.11%
7
5.34%

PAR-NEW-IN
1
131
0.90%
1
0.76%
123
93.89%
8
6.11%
7
5.34%

Wales

87
4234
28.95%
279
6.59%
3777
89.21%
220
5.20%
157
3.71%
21
0.50%
Wales - High TB

67
3119
21.33%
172
5.51%
2805
89.93%
190
6.09%
133
4.26%
9
0.29%
Carmarthenshire

21
1392
9.52%
41
2.95%
1303
93.61%
61
4.38%
45
3.23%
3
0.22%
PAR-IR-EX
1
1
0.01%
1
100.00%

PAR-IR-SEV
5
8
0.05%
4
50.00%
4
50.00%

PAR-OTHER
1
1
0.01%

1
100.00%

PAR-PERSIS
5
341
2.33%
15
4.40%
308
90.32%
22
6.45%
18
5.28%

PAR-RAPID
7
24
0.16%
8
33.33%
14
58.33%
2
8.33%
2
8.33%

PAR-RECUR
2
1017
6.95%
13
1.28%
976
95.97%
37
3.64%
25
2.46%
3
0.29%
Ceredigion

13
841
5.75%
35
4.16%
744
88.47%
70
8.32%
60
7.13%
2
0.24%
PAR-IR-SEV
3
4
0.03%
1
25.00%
3
75.00%

PAR-OTHER
1
4
0.03%
2
50.00%
2
50.00%

PAR-PERSIS
6
611
4.18%
29
4.75%
528
86.42%
57
9.33%
52
8.51%
2
0.33%
PAR-RECUR
3
222
1.52%
3
1.35%
211
95.05%
13
5.86%
8
3.60%

Pembrokeshire

21
754
5.16%
83
11.01%
647
85.81%
53
7.03%
24
3.18%

PAR-IR-EX
3
8
0.05%
5
62.50%
3
37.50%
7
87.50%

PAR-IR-SEV
7
34
0.23%
15
44.12%
17
50.00%
15
44.12%
2
5.88%

PAR-OTHER
1
223
1.52%
34
15.25%
179
80.27%
14
6.28%
10
4.48%

PAR-PERSIS
2
449
3.07%
18
4.01%
421
93.76%
11
2.45%
10
2.23%

PAR-RAPID
7
39
0.27%
11
28.21%
27
69.23%
5
12.82%
1
2.56%

SER-FLEXI
1
1
0.01%

1
100.00%
1
100.00%

Powys

5
22
0.15%
5
22.73%
17
77.27%

PAR-IR-EX
1
2
0.01%

2
100.00%

PAR-IR-SEV
1
11
0.08%
5
45.45%
6
54.55%

PAR-RECUR
2
8
0.05%

8
100.00%

SER-FLEXI
1
1
0.01%

1
100.00%

South Wales

7
110
0.75%
8
7.27%
94
85.45%
6
5.45%
4
3.64%
4
3.64%
PAR-IR-EX
1
11
0.08%

10
90.91%
1
9.09%
1
9.09%

PAR-IR-SEV
1
1
0.01%
1
100.00%

PAR-OTHER
3
88
0.60%
7
7.95%
75
85.23%
5
5.68%
3
3.41%
3
3.41%
PAR-RAPID
1
1
0.01%

1
100.00%

SER-OTHER
1
9
0.06%

8
88.89%

1
11.11%
Wales - Intermediate
TB

19
1109
7.58%
106
9.56%
971
87.56%
30
2.71%
24
2.16%
8
0.72%
Ceredigion

1
10
0.07%
2
20.00%
8
80.00%

PAR-RAPID
1
10
0.07%
2
20.00%
8
80.00%

North East Wales

14
751
5.14%
87
11.58%
638
84.95%
26
3.46%
21
2.80%
5
0.67%
PAR-IR-EX
4
7
0.05%
2
28.57%
5
71.43%

PAR-IR-SEV
3
11
0.08%
6
54.55%
5
45.45%

PAR-NEW-IN
3
164
1.12%
22
13.41%
133
81.10%
6
3.66%
6
3.66%
3
1.83%
PAR-PERSIS
4
569
3.89%
57
10.02%
495
86.99%
20
3.51%
15
2.64%
2
0.35%
Powys

1
337
2.30%
13
3.86%
318
94.36%
4
1.19%
3
0.89%
3
0.89%
PAR-PERSIS
1
337
2.30%
13
3.86%
318
94.36%
4
1.19%
3
0.89%
3
0.89%
South Wales

3
11
0.08%
4
36.36%
7
63.64%

PAR-OTHER
2
10
0.07%
4
40.00%
6
60.00%

PAR-RAPID
1
1
0.01%

1
100.00%

Wales - Low TB

1
6
0.04%
1
16.67%
1
16.67%

4
66.67%
North West Wales

1
6
0.04%
1
16.67%
1
16.67%

4
66.67%
PAR-IR-EX
1
6
0.04%
1
16.67%
1
16.67%

4
66.67%
Total
196
14624
100.00%
940
6.43%
13097
89.56%
734
5.02%
552
3.77%
35
0.24%

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

1198
144344
66.84%
7242
5.02%
130051
90.10%
7845
5.43%
6210
4.30%
841
0.58%
England - HRA

705
97069
44.95%
5539
5.71%
87119
89.75%
5151
5.31%
4050
4.17%
361
0.37%
Cornwall and Isles of
Scilly

73
9523
4.41%
554
5.82%
8508
89.34%
503
5.28%
374
3.93%
87
0.91%
PAR-CHR
12
2362
1.09%
85
3.60%
2095
88.70%
141
5.97%
111
4.70%
71
3.01%
PAR-CUL-N
3
27
0.01%
1
3.70%
21
77.78%
9
33.33%
5
18.52%

PAR-OTHER
6
1083
0.50%
77
7.11%
963
88.92%
51
4.71%
43
3.97%

PAR-PERSIS
5
619
0.29%
25
4.04%
557
89.98%
40
6.46%
34
5.49%
3
0.48%
PAR-RECUR
36
4525
2.10%
293
6.48%
4074
90.03%
207
4.57%
145
3.20%
13
0.29%
PAR-VOL
10
904
0.42%
73
8.08%
795
87.94%
55
6.08%
36
3.98%

SER-OTHER
1
3
0.00%

3
100.00%

Devon

166
23095
10.69%
1489
6.45%
20598
89.19%
1192
5.16%
949
4.11%
59
0.26%
PAR-CHR
20
3425
1.59%
231
6.74%
3064
89.46%
148
4.32%
116
3.39%
14
0.41%
PAR-CUL-N
1
2
0.00%

2
100.00%

PAR-CUL-P
5
562
0.26%
41
7.30%
496
88.26%
34
6.05%
25
4.45%

PAR-OTHER
22
3482
1.61%
261
7.50%
3026
86.90%
221
6.35%
193
5.54%
2
0.06%
PAR-PERSIS
12
2558
1.18%
121
4.73%
2389
93.39%
66
2.58%
48
1.88%

PAR-RECUR
104
12605
5.84%
829
6.58%
11175
88.66%
713
5.66%
558
4.43%
43
0.34%
PAR-VOL
2
461
0.21%
6
1.30%
446
96.75%
10
2.17%
9
1.95%

Dorset

19
3019
1.40%
336
11.13%
2591
85.82%
135
4.47%
92
3.05%

PAR-CHR
2
10
0.00%

9
90.00%
1
10.00%
1
10.00%

PAR-OTHER
3
677
0.31%
72
10.64%
591
87.30%
20
2.95%
14
2.07%

PAR-PERSIS
3
453
0.21%
65
14.35%
361
79.69%
32
7.06%
27
5.96%

PAR-RECUR
11
1879
0.87%
199
10.59%
1630
86.75%
82
4.36%
50
2.66%

Gloucestershire

43
7649
3.54%
311
4.07%
6973
91.16%
476
6.22%
362
4.73%
3
0.04%
PAR-CHR
3
421
0.19%
12
2.85%
383
90.97%
28
6.65%
26
6.18%

PAR-OTHER
1
28
0.01%
11
39.29%
17
60.71%

PAR-PERSIS
8
3431
1.59%
138
4.02%
3133
91.31%
232
6.76%
160
4.66%

PAR-RECUR
29
3720
1.72%
146
3.92%
3396
91.29%
215
5.78%
175
4.70%
3
0.08%
SER-FLEXI
2
49
0.02%
4
8.16%
44
89.80%
1
2.04%
1
2.04%

Herefordshire

40
4378
2.03%
232
5.30%
3955
90.34%
223
5.09%
178
4.07%
13
0.30%
PAR-OTHER
5
169
0.08%
9
5.33%
143
84.62%
24
14.20%
17
10.06%

PAR-PERSIS
1
43
0.02%
5
11.63%
36
83.72%
2
4.65%
2
4.65%

PAR-RECUR
29
3224
1.49%
97
3.01%
2977
92.34%
161
4.99%
137
4.25%
13
0.40%
SER-FLEXI
5
942
0.44%
121
12.85%
799
84.82%
36
3.82%
22
2.34%

Northern Somerset &
South Glou

51
6489
3.00%
356
5.49%
5749
88.60%
457
7.04%
371
5.72%
13
0.20%
PAR-CHR
6
889
0.41%
31
3.49%
818
92.01%
47
5.29%
40
4.50%

PAR-OTHER
7
685
0.32%
38
5.55%
611
89.20%
37
5.40%
36
5.26%

PAR-PERSIS
4
629
0.29%
32
5.09%
574
91.26%
30
4.77%
23
3.66%

PAR-RECUR
34
4286
1.98%
255
5.95%
3746
87.40%
343
8.00%
272
6.35%
13
0.30%
Shropshire

83
10386
4.81%
546
5.26%
9385
90.36%
567
5.46%
423
4.07%
32
0.31%
PAR-CHR
6
375
0.17%
76
20.27%
281
74.93%
19
5.07%
18
4.80%

PAR-OTHER
13
1856
0.86%
118
6.36%
xx-xxxx-xxxx
90.52%
75
4.04%
56
3.02%
2
0.11%
PAR-PERSIS
12
518
0.24%
22
4.25%
484
93.44%
28
5.41%
12
2.32%

PAR-RECUR
52
7637
3.54%
330
4.32%
6940
90.87%
445
5.83%
337
4.41%
30
0.39%
Somerset excl North

88
10368
4.80%
554
5.34%
9424
90.90%
419
4.04%
334
3.22%
56
0.54%
PAR-CHR
1
5
0.00%
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
8
389
0.18%
50
12.85%
327
84.06%
15
3.86%
12
3.08%

PAR-PERSIS
12
2265
1.05%
141
6.23%
2079
91.79%
57
2.52%
44
1.94%
1
0.04%
PAR-RECUR
48
6320
2.93%
235
3.72%
5789
91.60%
298
4.72%
242
3.83%
54
0.85%
PAR-VOL
7
992
0.46%
83
8.37%
882
88.91%
34
3.43%
27
2.72%

SER-FLEXI
11
396
0.18%
43
10.86%
346
87.37%
12
3.03%
6
1.52%
1
0.25%
Staffordshire

54
9522
4.41%
434
4.56%
8563
89.93%
620
6.51%
511
5.37%
14
0.15%
PAR-CHR
10
2077
0.96%
98
4.72%
1875
90.27%
118
5.68%
99
4.77%
5
0.24%
PAR-OTHER
1
344
0.16%
4
1.16%
327
95.06%
17
4.94%
13
3.78%

PAR-PERSIS
4
517
0.24%
82
15.86%
398
76.98%
39
7.54%
35
6.77%
2
0.39%
PAR-RECUR
39
6584
3.05%
250
3.80%
5963
90.57%
446
6.77%
364
5.53%
7
0.11%
West Midlands

6
840
0.39%
45
5.36%
749
89.17%
51
6.07%
46
5.48%

PAR-RECUR
6
840
0.39%
45
5.36%
749
89.17%
51
6.07%
46
5.48%

Wiltshire

66
9840
4.56%
555
5.64%
8872
90.16%
413
4.20%
331
3.36%
82
0.83%
PAR-CHR
11
1554
0.72%
58
3.73%
1442
92.79%
63
4.05%
52
3.35%
2
0.13%
PAR-CUL-P
1
424
0.20%
22
5.19%
389
91.75%
14
3.30%
13
3.07%

PAR-PERSIS
12
1466
0.68%
97
6.62%
1228
83.77%
75
5.12%
61
4.16%
80
5.46%
PAR-RECUR
38
6114
2.83%
329
5.38%
5595
91.51%
246
4.02%
190
3.11%

PAR-VOL
1
250
0.12%
36
14.40%
200
80.00%
14
5.60%
14
5.60%

SER-FLEXI
3
32
0.01%
13
40.63%
18
56.25%
1
3.13%
1
3.13%

Worcestershire

16
1960
0.91%
127
6.48%
1752
89.39%
95
4.85%
79
4.03%
2
0.10%
PAR-CHR
1
11
0.01%
4
36.36%
7
63.64%

PAR-PERSIS
1
415
0.19%
47
11.33%
352
84.82%
17
4.10%
16
3.86%

PAR-RECUR
14
1534
0.71%
76
4.95%
1393
90.81%
78
5.08%
63
4.11%
2
0.13%
England - Edge

352
34831
16.13%
1323
3.80%
31592
90.70%
1921
5.52%
1536
4.41%
380
1.09%
Berkshire

18
1793
0.83%
84
4.68%
1616
90.13%
107
5.97%
92
5.13%
1
0.06%
PAR-NEW-IN
12
788
0.36%
29
3.68%
715
90.74%
44
5.58%
43
5.46%
1
0.13%
PAR-PERSIS
5
1004
0.46%
55
5.48%
900
89.64%
63
6.27%
49
4.88%

PAR-RECUR
1
1
0.00%

1
100.00%

Buckinghamshire

57
4571
2.12%
206
4.51%
3831
83.81%
286
6.26%
225
4.92%
309
6.76%
PAR-NEW-IN
50
3876
1.79%
175
4.51%
3200
82.56%
245
6.32%
192
4.95%
309
7.97%
PAR-RECUR
7
695
0.32%
31
4.46%
631
90.79%
41
5.90%
33
4.75%

Cheshire

44
8505
3.94%
189
2.22%
8009
94.17%
394
4.63%
304
3.57%
3
0.04%
PAR-CHR
1
540
0.25%
15
2.78%
510
94.44%
21
3.89%
15
2.78%

PAR-OTHER
12
2473
1.15%
41
1.66%
2339
94.58%
124
5.01%
91
3.68%
2
0.08%
PAR-PERSIS
4
603
0.28%
23
3.81%
568
94.20%
17
2.82%
12
1.99%

PAR-RECUR
23
4156
1.92%
82
1.97%
3915
94.20%
192
4.62%
158
3.80%
1
0.02%
PAR-VOL
4
733
0.34%
28
3.82%
677
92.36%
40
5.46%
28
3.82%

Derbyshire

31
3139
1.45%
89
2.84%
2892
92.13%
189
6.02%
156
4.97%
2
0.06%
PAR-NEW-IN
16
1677
0.78%
44
2.62%
1541
91.89%
111
6.62%
91
5.43%
1
0.06%
PAR-OTHER
3
151
0.07%
11
7.28%
134
88.74%
8
5.30%
6
3.97%

PAR-RECUR
10
1128
0.52%
22
1.95%
1056
93.62%
58
5.14%
49
4.34%
1
0.09%
PAR-VOL
2
183
0.08%
12
6.56%
161
87.98%
12
6.56%
10
5.46%

East Sussex

12
921
0.43%
30
3.26%
860
93.38%
40
4.34%
30
3.26%
1
0.11%
PAR-NEW-IN
9
611
0.28%
23
3.76%
563
92.14%
31
5.07%
24
3.93%
1
0.16%
PAR-PERSIS
1
125
0.06%
2
1.60%
121
96.80%
4
3.20%
2
1.60%

SER-FLEXI
2
185
0.09%
5
2.70%
176
95.14%
5
2.70%
4
2.16%

Greater Manchester

2
44
0.02%

43
97.73%
1
2.27%
1
2.27%

PAR-NEW-IN
2
44
0.02%

43
97.73%
1
2.27%
1
2.27%

Hampshire

30
1543
0.71%
60
3.89%
1388
89.95%
119
7.71%
88
5.70%
7
0.45%
PAR-NEW-IN
25
1335
0.62%
57
4.27%
1197
89.66%
108
8.09%
78
5.84%
3
0.22%
PAR-OTHER
2
184
0.09%
3
1.63%
171
92.93%
10
5.43%
10
5.43%

PAR-RECUR
3
24
0.01%

20
83.33%
1
4.17%

4
16.67%
Leicestershire and
Rutland

55
5705
2.64%
267
4.68%
5144
90.17%
362
6.35%
290
5.08%
4
0.07%
PAR-NEW-IN
55
5705
2.64%
267
4.68%
5144
90.17%
362
6.35%
290
5.08%
4
0.07%
Northamptonshire

20
1333
0.62%
40
3.00%
1219
91.45%
93
6.98%
73
5.48%
1
0.08%
PAR-NEW-IN
20
1333
0.62%
40
3.00%
1219
91.45%
93
6.98%
73
5.48%
1
0.08%
Nottinghamshire

7
291
0.13%
18
6.19%
260
89.35%
15
5.15%
13
4.47%

PAR-NEW-IN
5
263
0.12%
8
3.04%
242
92.02%
15
5.70%
13
4.94%

PAR-OTHER
1
22
0.01%
10
45.45%
12
54.55%

SER-NSR
1
6
0.00%

6
100.00%

Oxfordshire

64
5794
2.68%
285
4.92%
5252
90.65%
243
4.19%
205
3.54%
52
0.90%
PAR-NEW-IN
10
734
0.34%
37
5.04%
677
92.23%
27
3.68%
20
2.72%

PAR-OTHER
18
1051
0.49%
60
5.71%
923
87.82%
23
2.19%
19
1.81%
49
4.66%
PAR-RECUR
34
3941
1.82%
185
4.69%
3589
91.07%
189
4.80%
164
4.16%
3
0.08%
PAR-VOL
2
68
0.03%
3
4.41%
63
92.65%
4
5.88%
2
2.94%

Warwickshire

12
1192
0.55%
55
4.61%
1078
90.44%
72
6.04%
59
4.95%

PAR-CHR
2
19
0.01%
5
26.32%
12
63.16%
2
10.53%
2
10.53%

PAR-OTHER
3
370
0.17%
29
7.84%
316
85.41%
31
8.38%
25
6.76%

PAR-RECUR
6
517
0.24%
14
2.71%
475
91.88%
32
6.19%
28
5.42%

PAR-VOL
1
286
0.13%
7
2.45%
275
96.15%
7
2.45%
4
1.40%

England - LRA

141
12444
5.76%
380
3.05%
11340
91.13%
773
6.21%
624
5.01%
100
0.80%
Bedfordshire

5
273
0.13%
4
1.47%
241
88.28%
21
7.69%
18
6.59%
10
3.66%
PAR-NEW-IN
5
273
0.13%
4
1.47%
241
88.28%
21
7.69%
18
6.59%
10
3.66%
Cambridgeshire

1
165
0.08%
1
0.61%
153
92.73%
10
6.06%
10
6.06%
1
0.61%
PAR-NEW-IN
1
165
0.08%
1
0.61%
153
92.73%
10
6.06%
10
6.06%
1
0.61%
Cumbria

40
4724
2.19%
182
3.85%
4292
90.86%
276
5.84%
226
4.78%
24
0.51%
PAR-NEW-IN
34
4142
1.92%
159
3.84%
3776
91.16%
223
5.38%
187
4.51%
20
0.48%
PAR-OTHER
1
308
0.14%
8
2.60%
292
94.81%
10
3.25%
7
2.27%
1
0.32%
SER-FLEXI
4
260
0.12%
15
5.77%
210
80.77%
43
16.54%
32
12.31%
3
1.15%
SER-NSR
1
14
0.01%

14
100.00%

Durham

3
410
0.19%
7
1.71%
379
92.44%
26
6.34%
24
5.85%

PAR-NEW-IN
3
410
0.19%
7
1.71%
379
92.44%
26
6.34%
24
5.85%

East Riding and
North Lincolns

1
60
0.03%

56
93.33%
4
6.67%
4
6.67%

PAR-NEW-IN
1
60
0.03%

56
93.33%
4
6.67%
4
6.67%

Essex

16
1567
0.73%
36
2.30%
1402
89.47%
93
5.93%
72
4.59%
57
3.64%
PAR-NEW-IN
16
1567
0.73%
36
2.30%
1402
89.47%
93
5.93%
72
4.59%
57
3.64%
Hertfordshire

4
129
0.06%
7
5.43%
115
89.15%
5
3.88%
5
3.88%
2
1.55%
PAR-NEW-IN
4
129
0.06%
7
5.43%
115
89.15%
5
3.88%
5
3.88%
2
1.55%
Kent

10
849
0.39%
17
2.00%
768
90.46%
90
10.60%
64
7.54%

PAR-NEW-IN
10
849
0.39%
17
2.00%
768
90.46%
90
10.60%
64
7.54%

Lancashire

1
14
0.01%

14
100.00%

PAR-NEW-IN
1
14
0.01%

14
100.00%

Lincolnshire

48
3606
1.67%
102
2.83%
3335
92.48%
205
5.68%
167
4.63%
2
0.06%
PAR-NEW-IN
45
3399
1.57%
99
2.91%
3138
92.32%
195
5.74%
160
4.71%
2
0.06%
PAR-OTHER
1
139
0.06%
1
0.72%
137
98.56%
2
1.44%
1
0.72%

SER-FLEXI
2
68
0.03%
2
2.94%
60
88.24%
8
11.76%
6
8.82%

North Yorkshire

3
245
0.11%
11
4.49%
219
89.39%
13
5.31%
13
5.31%
2
0.82%
PAR-NEW-IN
3
245
0.11%
11
4.49%
219
89.39%
13
5.31%
13
5.31%
2
0.82%
South Yorkshire

4
229
0.11%
5
2.18%
214
93.45%
12
5.24%
8
3.49%
2
0.87%
PAR-NEW-IN
4
229
0.11%
5
2.18%
214
93.45%
12
5.24%
8
3.49%
2
0.87%
Surrey

1
11
0.01%

11
100.00%

SER-NSR
1
11
0.01%

11
100.00%

West Sussex

1
78
0.04%
1
1.28%
75
96.15%
2
2.56%
2
2.56%

PAR-NEW-IN
1
78
0.04%
1
1.28%
75
96.15%
2
2.56%
2
2.56%

West Yorkshire

3
84
0.04%
7
8.33%
66
78.57%
16
19.05%
11
13.10%

PAR-NEW-IN
2
25
0.01%

22
88.00%
5
20.00%
3
12.00%

PAR-OTHER
1
59
0.03%
7
11.86%
44
74.58%
11
18.64%
8
13.56%

Scotland

58
7369
3.41%
204
2.77%
6782
92.03%
452
6.13%
332
4.51%
51
0.69%
Scotland - Scotland

58
7369
3.41%
204
2.77%
6782
92.03%
452
6.13%
332
4.51%
51
0.69%
Argyll and Bute

3
159
0.07%
1
0.63%
155
97.48%
6
3.77%
3
1.89%

PAR-NEW-IN
3
159
0.07%
1
0.63%
155
97.48%
6
3.77%
3
1.89%

Ayrshire

9
1091
0.51%
27
2.47%
991
90.83%
39
3.57%
25
2.29%
48
4.40%
PAR-NEW-IN
9
1091
0.51%
27
2.47%
991
90.83%
39
3.57%
25
2.29%
48
4.40%
Clyde Valley

8
854
0.40%
5
0.59%
802
93.91%
53
6.21%
44
5.15%
3
0.35%
PAR-NEW-IN
8
854
0.40%
5
0.59%
802
93.91%
53
6.21%
44
5.15%
3
0.35%
Dumfries & Galloway

31
4742
2.20%
159
3.35%
4340
91.52%
325
6.85%
243
5.12%

PAR-NEW-IN
31
4742
2.20%
159
3.35%
4340
91.52%
325
6.85%
243
5.12%

Fife

6
392
0.18%
11
2.81%
371
94.64%
21
5.36%
10
2.55%

PAR-NEW-IN
6
392
0.18%
11
2.81%
371
94.64%
21
5.36%
10
2.55%

North Eastern
Scotland

1
131
0.06%
1
0.76%
123
93.89%
8
6.11%
7
5.34%

PAR-NEW-IN
1
131
0.06%
1
0.76%
123
93.89%
8
6.11%
7
5.34%

Wales

1380
64249
29.75%
4254
6.62%
57070
88.83%
3121
4.86%
2444
3.80%
481
0.75%
Wales - High TB

959
43708
20.24%
3279
7.50%
38566
88.24%
1951
4.46%
1518
3.47%
345
0.79%
Carmarthenshire

237
13183
6.10%
975
7.40%
11806
89.55%
509
3.86%
378
2.87%
24
0.18%
PAR-IR-EX
13
93
0.04%
26
27.96%
66
70.97%
1
1.08%
1
1.08%

PAR-IR-SEV
58
424
0.20%
109
25.71%
300
70.75%
17
4.01%
15
3.54%

PAR-OTHER
11
149
0.07%
28
18.79%
115
77.18%
9
6.04%
6
4.03%

PAR-PERSIS
27
3278
1.52%
161
4.91%
3026
92.31%
116
3.54%
85
2.59%
6
0.18%
PAR-RAPID
69
229
0.11%
97
42.36%
121
52.84%
11
4.80%
11
4.80%

PAR-RECUR
43
7536
3.49%
286
3.80%
7020
93.15%
300
3.98%
218
2.89%
12
0.16%
SER-FLEXI
16
1474
0.68%
268
18.18%
1158
78.56%
55
3.73%
42
2.85%
6
0.41%
Ceredigion

79
3460
1.60%
230
6.65%
3044
87.98%
212
6.13%
178
5.14%
8
0.23%
PAR-IR-EX
7
15
0.01%
7
46.67%
8
53.33%

PAR-IR-SEV
17
96
0.04%
19
19.79%
74
77.08%
5
5.21%
3
3.13%

PAR-OTHER
8
191
0.09%
9
4.71%
177
92.67%
8
4.19%
4
2.09%
1
0.52%
PAR-PERSIS
19
2059
0.95%
119
5.78%
1830
88.88%
116
5.63%
105
5.10%
5
0.24%
PAR-RAPID
9
25
0.01%
11
44.00%
13
52.00%
1
4.00%
1
4.00%

PAR-RECUR
17
1029
0.48%
31
3.01%
933
90.67%
80
7.77%
63
6.12%
2
0.19%
SER-FLEXI
2
45
0.02%
34
75.56%
9
20.00%
2
4.44%
2
4.44%

Gloucestershire

3
83
0.04%
4
4.82%
74
89.16%
5
6.02%
4
4.82%
1
1.20%
PAR-PERSIS
3
83
0.04%
4
4.82%
74
89.16%
5
6.02%
4
4.82%
1
1.20%
Pembrokeshire

435
18357
8.50%
1480
8.06%
16206
88.28%
773
4.21%
589
3.21%
82
0.45%
PAR-HERD-S
1
18
0.01%
1
5.56%
15
83.33%
3
16.67%
2
11.11%

PAR-IR-EX
42
200
0.09%
105
52.50%
88
44.00%
14
7.00%
6
3.00%
1
0.50%
PAR-IR-SEV
180
1431
0.66%
507
35.43%
880
61.50%
79
5.52%
43
3.00%
1
0.07%
PAR-NEW-IN
2
479
0.22%
23
4.80%
450
93.95%
9
1.88%
6
1.25%

PAR-OTHER
9
344
0.16%
57
16.57%
275
79.94%
17
4.94%
12
3.49%

PAR-PERSIS
83
9475
4.39%
496
5.23%
8670
91.50%
347
3.66%
273
2.88%
36
0.38%
PAR-RAPID
73
259
0.12%
66
25.48%
173
66.80%
17
6.56%
12
4.63%
8
3.09%
PAR-RECUR
28
5042
2.33%
153
3.03%
4719
93.59%
167
3.31%
139
2.76%
31
0.61%
SER-FLEXI
17
1109
0.51%
72
6.49%
936
84.40%
120
10.82%
96
8.66%
5
0.45%
Powys

122
6259
2.90%
346
5.53%
5450
87.07%
293
4.68%
242
3.87%
221
3.53%
PAR-IR-EX
8
27
0.01%
5
18.52%
20
74.07%
2
7.41%
2
7.41%

PAR-IR-SEV
27
134
0.06%
30
22.39%
91
67.91%
6
4.48%
6
4.48%
7
5.22%
PAR-OTHER
6
117
0.05%
7
5.98%
105
89.74%
4
3.42%
4
3.42%
1
0.85%
PAR-PERSIS
25
4047
1.87%
184
4.55%
3619
89.42%
186
4.60%
160
3.95%
84
2.08%
PAR-RAPID
31
84
0.04%
31
36.90%
52
61.90%
2
2.38%
1
1.19%

PAR-RECUR
19
1588
0.74%
76
4.79%
1428
89.92%
89
5.60%
66
4.16%
18
1.13%
SER-FLEXI
6
262
0.12%
13
4.96%
135
51.53%
4
1.53%
3
1.15%
111
42.37%
South Wales

83
2366
1.10%
244
10.31%
1986
83.94%
159
6.72%
127
5.37%
9
0.38%
PAR-IR-EX
5
37
0.02%
10
27.03%
25
67.57%
2
5.41%
2
5.41%

PAR-IR-SEV
20
98
0.05%
40
40.82%
55
56.12%
3
3.06%
3
3.06%

PAR-OTHER
13
561
0.26%
81
14.44%
440
78.43%
45
8.02%
35
6.24%
5
0.89%
PAR-PERSIS
13
907
0.42%
72
7.94%
800
88.20%
42
4.63%
35
3.86%

PAR-RAPID
18
39
0.02%
8
20.51%
27
69.23%
4
10.26%
4
10.26%

PAR-RECUR
13
715
0.33%
33
4.62%
631
88.25%
63
8.81%
48
6.71%
3
0.42%
SER-OTHER
1
9
0.00%

8
88.89%

1
11.11%
Wales - Intermediate

288
13145
6.09%
728
5.54%
11826
89.97%
668
5.08%
519
3.95%
72
0.55%
Carmarthenshire

12
685
0.32%
91
13.28%
582
84.96%
15
2.19%
12
1.75%

PAR-IR-SEV
1
2
0.00%
1
50.00%
1
50.00%

PAR-OTHER
5
73
0.03%
11
15.07%
55
75.34%
8
10.96%
7
9.59%

PAR-RAPID
4
13
0.01%
9
69.23%
4
30.77%

PAR-RECUR
2
597
0.28%
70
11.73%
522
87.44%
7
1.17%
5
0.84%

Ceredigion

14
398
0.18%
65
16.33%
284
71.36%
52
13.07%
47
11.81%
2
0.50%
PAR-IR-SEV
1
4
0.00%
4
100.00%

PAR-PERSIS
2
181
0.08%
39
21.55%
137
75.69%
6
3.31%
4
2.21%
1
0.55%
PAR-RAPID
7
24
0.01%
7
29.17%
17
70.83%
1
4.17%

PAR-RECUR
4
189
0.09%
15
7.94%
130
68.78%
45
23.81%
43
22.75%
1
0.53%
Cheshire

4
325
0.15%
4
1.23%
288
88.62%
6
1.85%
6
1.85%
27
8.31%
PAR-NEW-IN
3
323
0.15%
4
1.24%
286
88.54%
6
1.86%
6
1.86%
27
8.36%
PAR-RAPID
1
2
0.00%

2
100.00%

North East Wales

203
9383
4.34%
433
4.61%
8560
91.23%
456
4.86%
353
3.76%
37
0.39%
PAR-IR-EX
23
65
0.03%
14
21.54%
44
67.69%
7
10.77%
6
9.23%
1
1.54%
PAR-IR-SEV
50
192
0.09%
56
29.17%
127
66.15%
8
4.17%
8
4.17%
1
0.52%
PAR-NEW-IN
75
5425
2.51%
198
3.65%
4972
91.65%
293
5.40%
234
4.31%
21
0.39%
PAR-PERSIS
34
3059
1.42%
138
4.51%
2827
92.42%
118
3.86%
82
2.68%
12
0.39%
PAR-RAPID
8
20
0.01%
7
35.00%
13
65.00%

PAR-RECUR
9
544
0.25%
18
3.31%
503
92.46%
28
5.15%
21
3.86%
2
0.37%
SER-FLEXI
4
78
0.04%
2
2.56%
74
94.87%
2
2.56%
2
2.56%

Powys

40
2265
1.05%
118
5.21%
2044
90.24%
134
5.92%
97
4.28%
6
0.26%
PAR-IR-EX
5
17
0.01%
5
29.41%
12
70.59%

PAR-IR-SEV
5
31
0.01%
9
29.03%
19
61.29%
2
6.45%
2
6.45%
1
3.23%
PAR-NEW-IN
11
1103
0.51%
49
4.44%
994
90.12%
76
6.89%
58
5.26%
2
0.18%
PAR-PERSIS
3
606
0.28%
23
3.80%
566
93.40%
24
3.96%
14
2.31%
3
0.50%
PAR-RAPID
6
10
0.00%
2
20.00%
8
80.00%

PAR-RECUR
8
215
0.10%
6
2.79%
200
93.02%
11
5.12%
9
4.19%

SER-FLEXI
2
283
0.13%
24
8.48%
245
86.57%
21
7.42%
14
4.95%

South Wales

15
89
0.04%
17
19.10%
68
76.40%
5
5.62%
4
4.49%

PAR-IR-SEV
6
62
0.03%
6
9.68%
52
83.87%
5
8.06%
4
6.45%

PAR-OTHER
3
19
0.01%
9
47.37%
10
52.63%

PAR-RAPID
6
8
0.00%
2
25.00%
6
75.00%

Wales - Low TB

133
7396
3.42%
247
3.34%
6678
90.29%
502
6.79%
407
5.50%
64
0.87%
North East Wales

85
4127
1.91%
156
3.78%
3712
89.94%
264
6.40%
205
4.97%
54
1.31%
PAR-IR-EX
7
8
0.00%
4
50.00%
2
25.00%
2
25.00%
2
25.00%

PAR-IR-SEV
11
368
0.17%
16
4.35%
295
80.16%
20
5.43%
14
3.80%
43
11.68%
PAR-NEW-IN
49
2740
1.27%
80
2.92%
2510
91.61%
184
6.72%
146
5.33%
4
0.15%
PAR-PERSIS
3
10
0.00%
1
10.00%
7
70.00%
2
20.00%
2
20.00%

PAR-RECUR
4
389
0.18%
8
2.06%
370
95.12%
22
5.66%
11
2.83%

SER-FLEXI
11
612
0.28%
47
7.68%
528
86.27%
34
5.56%
30
4.90%
7
1.14%
North West Wales

48
3269
1.51%
91
2.78%
2966
90.73%
238
7.28%
202
6.18%
10
0.31%
PAR-IR-EX
1
6
0.00%
1
16.67%
1
16.67%

4
66.67%
PAR-NEW-IN
45
3008
1.39%
84
2.79%
2727
90.66%
227
7.55%
191
6.35%
6
0.20%
PAR-PERSIS
1
7
0.00%

3
42.86%
4
57.14%
4
57.14%

PAR-RECUR
1
248
0.11%
6
2.42%
235
94.76%
7
2.82%
7
2.82%

Total
2636
215962
100.00%
11700
5.42%
193903
89.79%
11418
5.29%
8986
4.16%
1373
0.64%

Table 3a. Summary of IFN Gamma results by country & protocol December 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

105
10187

660
6.48%
9128
89.60%
503
4.94%
385
3.78%
14
0.14%
Parallel
92
7992
78.5 %
508
6.36%
7163
89.63%
392
4.90%
307
3.84%
14
0.18%
PAR-VOL
9
1395
13.7 %
97
6.95%
1239
88.82%
82
5.88%
59
4.23%

Serial / Extended
4
800
7.9 %
55
6.88%
726
90.75%
29
3.63%
19
2.38%

Scotland

4
203

1
0.49%
192
94.58%
11
5.42%
10
4.93%

Parallel
4
203
100.0 %
1
0.49%
192
94.58%
11
5.42%
10
4.93%

Wales

87
4234

279
6.59%
3777
89.21%
220
5.20%
157
3.71%
21
0.50%
Parallel
84
4223
99.7 %
279
6.61%
3768
89.23%
219
5.19%
156
3.69%
20
0.47%
Serial / Extended
3
11
0.3 %

9
81.82%
1
9.09%
1
9.09%
1
9.09%
Total
196
14624

940
6.43%
13097
89.56%
734
5.02%
552
3.77%
35
0.24%
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
180
12418
84.9 %
788
6.35%
11123
89.57%
622
5.01%
473
3.81%
34
0.27%
Serial / Extended
7
811
5.5 %
55
6.78%
735
90.63%
30
3.70%
20
2.47%
1
0.12%
PAR-VOL
9
1395
9.5 %
97
6.95%
1239
88.82%
82
5.88%
59
4.23%

Total
196
14624

940
6.43%
13097
89.56%
734
5.02%
552
3.77%
35
0.24%

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

1198
144344

7242
5.02%
130051
90.10%
7845
5.43%
6210
4.30%
841
0.58%
Parallel
1136
138501
96.0 %
6791
4.90%
124865
90.15%
7563
5.46%
6008
4.34%
837
0.60%
PAR-VOL
29
3877
2.7 %
248
6.40%
3499
90.25%
176
4.54%
130
3.35%

Serial / Extended
33
1966
1.4 %
203
10.33%
xx-xxxx-xxxx
85.81%
106
5.39%
72
3.66%
4
0.20%
Scotland

58
7369

204
2.77%
6782
92.03%
452
6.13%
332
4.51%
51
0.69%
Parallel
58
7369
100.0 %
204
2.77%
6782
92.03%
452
6.13%
332
4.51%
51
0.69%
Wales

1380
64249

4254
6.62%
57070
88.83%
3121
4.86%
2444
3.80%
481
0.75%
Parallel
1321
60377
94.0 %
3794
6.28%
53977
89.40%
2883
4.77%
2255
3.73%
351
0.58%
Serial / Extended
59
3872
6.0 %
460
11.88%
3093
79.88%
238
6.15%
189
4.88%
130
3.36%
Total
2636
215962

11700
5.42%
193903
89.79%
11418
5.29%
8986
4.16%
1373
0.64%
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
2515
206247
95.5 %
10789
5.23%
185624
90.00%
10898
5.28%
8595
4.17%
1239
0.60%
PAR-VOL
29
3877
1.8 %
248
6.40%
3499
90.25%
176
4.54%
130
3.35%

Serial / Extended
92
5838
2.7 %
663
11.36%
4780
81.88%
344
5.89%
261
4.47%
134
2.30%
Total
2636
215962

11700
5.42%
193903
89.79%
11418
5.29%
8986
4.16%
1373
0.64%

Table 4a. Summary of IFN Gamma results by submission reason December 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

62
6539
44.71%
512
7.83%
5740
87.78%
356
5.44%
277
4.24%
10
0.15%
PAR-CHR
8
613
4.19%
90
14.68%
504
82.22%
21
3.43%
19
3.10%

PAR-OTHER
3
18
0.12%

14
77.78%
4
22.22%
4
22.22%

PAR-PERSIS
6
1412
9.66%
91
6.44%
1286
91.08%
41
2.90%
35
2.48%

PAR-RECUR
36
3034
20.75%
207
6.82%
2648
87.28%
219
7.22%
169
5.57%
10
0.33%
PAR-VOL
5
662
4.53%
69
10.42%
562
84.89%
42
6.34%
31
4.68%

SER-FLEXI
3
797
5.45%
55
6.90%
723
90.72%
29
3.64%
19
2.38%

SER-OTHER
1
3
0.02%

3
100.00%

England - Edge

33
2890
19.76%
123
4.26%
2676
92.60%
122
4.22%
88
3.04%
3
0.10%
PAR-NEW-IN
18
1296
8.86%
60
4.63%
1190
91.82%
59
4.55%
44
3.40%
2
0.15%
PAR-OTHER
3
87
0.59%
5
5.75%
78
89.66%
6
6.90%
4
4.60%

PAR-RECUR
8
774
5.29%
30
3.88%
731
94.44%
17
2.20%
12
1.55%
1
0.13%
PAR-VOL
4
733
5.01%
28
3.82%
677
92.36%
40
5.46%
28
3.82%

England - LRA

10
758
5.18%
25
3.30%
712
93.93%
25
3.30%
20
2.64%
1
0.13%
PAR-NEW-IN
9
450
3.08%
17
3.78%
420
93.33%
15
3.33%
13
2.89%

PAR-OTHER
1
308
2.11%
8
2.60%
292
94.81%
10
3.25%
7
2.27%
1
0.32%
Scotland - Scotland

4
203
1.39%
1
0.49%
192
94.58%
11
5.42%
10
4.93%

PAR-NEW-IN
4
203
1.39%
1
0.49%
192
94.58%
11
5.42%
10
4.93%

Wales - High TB

67
3119
21.33%
172
5.51%
2805
89.93%
190
6.09%
133
4.26%
9
0.29%
PAR-IR-EX
6
22
0.15%
6
27.27%
15
68.18%
8
36.36%
1
4.55%

PAR-IR-SEV
17
58
0.40%
26
44.83%
30
51.72%
15
25.86%
2
3.45%

PAR-OTHER
6
316
2.16%
43
13.61%
257
81.33%
19
6.01%
13
4.11%
3
0.95%
PAR-PERSIS
13
1401
9.58%
62
4.43%
1257
89.72%
90
6.42%
80
5.71%
2
0.14%
PAR-RAPID
15
64
0.44%
19
29.69%
42
65.63%
7
10.94%
3
4.69%

PAR-RECUR
7
1247
8.53%
16
1.28%
1195
95.83%
50
4.01%
33
2.65%
3
0.24%
SER-FLEXI
2
2
0.01%

1
50.00%
1
50.00%
1
50.00%

SER-OTHER
1
9
0.06%

8
88.89%

1
11.11%
Wales - Intermediate TB

19
1109
7.58%
106
9.56%
971
87.56%
30
2.71%
24
2.16%
8
0.72%
PAR-IR-EX
4
7
0.05%
2
28.57%
5
71.43%

PAR-IR-SEV
3
11
0.08%
6
54.55%
5
45.45%

PAR-NEW-IN
3
164
1.12%
22
13.41%
133
81.10%
6
3.66%
6
3.66%
3
1.83%
PAR-OTHER
2
10
0.07%
4
40.00%
6
60.00%

PAR-PERSIS
5
906
6.20%
70
7.73%
813
89.74%
24
2.65%
18
1.99%
5
0.55%
PAR-RAPID
2
11
0.08%
2
18.18%
9
81.82%

Wales - Low TB

1
6
0.04%
1
16.67%
1
16.67%

4
66.67%
PAR-IR-EX
1
6
0.04%
1
16.67%
1
16.67%

4
66.67%
Total
196
14624
100.00%
940
6.43%
13097
89.56%
734
5.02%
552
3.77%
35
0.24%
GB Totals
SUBMISSION_REASON

No
Subs
Samples % of Total Gamma
Positive
% Positive Gamma
Negative
% Negative Retest % Retest Resample % Resample Rejected % Rejected
PAR-CHR
8
613
4.19%
90
14.68%
504
82.22%
21
3.43%
19
3.10%

PAR-IR-EX
11
35
0.24%
9
25.71%
21
60.00%
8
22.86%
1
2.86%
4
11.43%
PAR-IR-SEV
20
69
0.47%
32
46.38%
35
50.72%
15
21.74%
2
2.90%

PAR-NEW-IN
34
2113
14.45%
100
4.73%
1935
91.58%
91
4.31%
73
3.45%
5
0.24%
PAR-OTHER
15
739
5.05%
60
8.12%
647
87.55%
39
5.28%
28
3.79%
4
0.54%
PAR-PERSIS
24
3719
25.43%
223
6.00%
3356
90.24%
155
4.17%
133
3.58%
7
0.19%
PAR-RAPID
17
75
0.51%
21
28.00%
51
68.00%
7
9.33%
3
4.00%

PAR-RECUR
51
5055
34.57%
253
5.00%
4574
90.48%
286
5.66%
214
4.23%
14
0.28%
PAR-VOL
9
1395
9.54%
97
6.95%
1239
88.82%
82
5.88%
59
4.23%

SER-FLEXI
5
799
5.46%
55
6.88%
724
90.61%
30
3.75%
20
2.50%

SER-OTHER
2
12
0.08%

11
91.67%

1
8.33%
Total
196
14624
100.00%
940
6.43%
13097
89.56%
734
5.02%
552
3.77%
35
0.24%

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

1198
144344
66.84%
7242
5.02%
130051
90.10%
7845
5.43%
6210
4.30%
841
0.58%
England - HRA

705
97069
44.95%
5539
5.71%
87119
89.75%
5151
5.31%
4050
4.17%
361
0.37%
PAR-CHR
72
11129
5.15%
597
5.36%
9975
89.63%
567
5.09%
465
4.18%
92
0.83%
PAR-CUL-N
4
29
0.01%
1
3.45%
23
79.31%
9
31.03%
5
17.24%

PAR-CUL-P
7
987
0.46%
63
6.38%
885
89.67%
49
4.96%
39
3.95%

PAR-OTHER
66
8713
4.03%
640
7.35%
7685
88.20%
460
5.28%
384
4.41%
4
0.05%
PAR-PERSIS
74
12914
5.98%
775
6.00%
11591
89.76%
618
4.79%
462
3.58%
86
0.67%
PAR-RECUR
440
59268
27.44%
3084
5.20%
53427
90.14%
3285
5.54%
2579
4.35%
178
0.30%
PAR-VOL
20
2607
1.21%
198
7.59%
2323
89.11%
113
4.33%
86
3.30%

SER-FLEXI
21
1419
0.66%
181
12.76%
1207
85.06%
50
3.52%
30
2.11%
1
0.07%
SER-OTHER
1
3
0.00%

3
100.00%

England - Edge

352
34831
16.13%
1323
3.80%
31592
90.70%
1921
5.52%
1536
4.41%
380
1.09%
PAR-CHR
3
559
0.26%
20
3.58%
522
93.38%
23
4.11%
17
3.04%

PAR-NEW-IN
204
16366
7.58%
680
4.15%
14541
88.85%
1037
6.34%
825
5.04%
320
1.96%
PAR-OTHER
39
4251
1.97%
154
3.62%
3895
91.63%
196
4.61%
151
3.55%
51
1.20%
PAR-PERSIS
10
1732
0.80%
80
4.62%
1589
91.74%
84
4.85%
63
3.64%

PAR-RECUR
84
10462
4.84%
334
3.19%
9687
92.59%
513
4.90%
432
4.13%
9
0.09%
PAR-VOL
9
1270
0.59%
50
3.94%
1176
92.60%
63
4.96%
44
3.46%

SER-FLEXI
2
185
0.09%
5
2.70%
176
95.14%
5
2.70%
4
2.16%

SER-NSR
1
6
0.00%

6
100.00%

England - LRA

141
12444
5.76%
380
3.05%
11340
91.13%
773
6.21%
624
5.01%
100
0.80%
PAR-NEW-IN
130
11585
5.36%
347
3.00%
10572
91.26%
699
6.03%
570
4.92%
96
0.83%
PAR-OTHER
3
506
0.23%
16
3.16%
473
93.48%
23
4.55%
16
3.16%
1
0.20%
SER-FLEXI
6
328
0.15%
17
5.18%
270
82.32%
51
15.55%
38
11.59%
3
0.91%
SER-NSR
2
25
0.01%

25
100.00%

Scotland

58
7369
3.41%
204
2.77%
6782
92.03%
452
6.13%
332
4.51%
51
0.69%
Scotland - Scotland

58
7369
3.41%
204
2.77%
6782
92.03%
452
6.13%
332
4.51%
51
0.69%
PAR-NEW-IN
58
7369
3.41%
204
2.77%
6782
92.03%
452
6.13%
332
4.51%
51
0.69%
Wales

1380
64249
29.75%
4254
6.62%
57070
88.83%
3121
4.86%
2444
3.80%
481
0.75%
Wales - High TB

959
43708
20.24%
3279
7.50%
38566
88.24%
1951
4.46%
1518
3.47%
345
0.79%
PAR-HERD-S
1
18
0.01%
1
5.56%
15
83.33%
3
16.67%
2
11.11%

PAR-IR-EX
75
372
0.17%
153
41.13%
207
55.65%
19
5.11%
11
2.96%
1
0.27%
PAR-IR-SEV
302
2183
1.01%
705
32.30%
1400
64.13%
110
5.04%
70
3.21%
8
0.37%
PAR-NEW-IN
2
479
0.22%
23
4.80%
450
93.95%
9
1.88%
6
1.25%

PAR-OTHER
47
1362
0.63%
182
13.36%
1112
81.64%
83
6.09%
61
4.48%
7
0.51%
PAR-PERSIS
170
19849
9.19%
1036
5.22%
18019
90.78%
812
4.09%
662
3.34%
132
0.67%
PAR-RAPID
200
636
0.29%
213
33.49%
386
60.69%
35
5.50%
29
4.56%
8
1.26%
PAR-RECUR
120
15910
7.37%
579
3.64%
14731
92.59%
699
4.39%
534
3.36%
66
0.41%
SER-FLEXI
41
2890
1.34%
387
13.39%
2238
77.44%
181
6.26%
143
4.95%
122
4.22%
SER-OTHER
1
9
0.00%

8
88.89%

1
11.11%
Wales - Intermediate

288
13145
6.09%
728
5.54%
11826
89.97%
668
5.08%
519
3.95%
72
0.55%
PAR-IR-EX
28
82
0.04%
19
23.17%
56
68.29%
7
8.54%
6
7.32%
1
1.22%
PAR-IR-SEV
63
291
0.13%
76
26.12%
199
68.38%
15
5.15%
14
4.81%
2
0.69%
PAR-NEW-IN
89
6851
3.17%
251
3.66%
6252
91.26%
375
5.47%
298
4.35%
50
0.73%
PAR-OTHER
8
92
0.04%
20
21.74%
65
70.65%
8
8.70%
7
7.61%

PAR-PERSIS
39
3846
1.78%
200
5.20%
3530
91.78%
148
3.85%
100
2.60%
16
0.42%
PAR-RAPID
32
77
0.04%
27
35.06%
50
64.94%
1
1.30%

PAR-RECUR
23
1545
0.72%
109
7.06%
1355
87.70%
91
5.89%
78
5.05%
3
0.19%
SER-FLEXI
6
361
0.17%
26
7.20%
319
88.37%
23
6.37%
16
4.43%

Wales - Low TB

133
7396
3.42%
247
3.34%
6678
90.29%
502
6.79%
407
5.50%
64
0.87%
PAR-IR-EX
8
14
0.01%
5
35.71%
3
21.43%
2
14.29%
2
14.29%
4
28.57%
PAR-IR-SEV
11
368
0.17%
16
4.35%
295
80.16%
20
5.43%
14
3.80%
43
11.68%
PAR-NEW-IN
94
5748
2.66%
164
2.85%
5237
91.11%
411
7.15%
337
5.86%
10
0.17%
PAR-PERSIS
4
17
0.01%
1
5.88%
10
58.82%
6
35.29%
6
35.29%

PAR-RECUR
5
637
0.29%
14
2.20%
605
94.98%
29
4.55%
18
2.83%

SER-FLEXI
11
612
0.28%
47
7.68%
528
86.27%
34
5.56%
30
4.90%
7
1.14%
Total
2636
215962
100.00%
11700
5.42%
193903
89.79%
11418
5.29%
8986
4.16%
1373
0.64%
GB Totals
Submission
Reason

No Subs Samples % of Total Gamma Positive % Positive Gamma Negative % Negative Retest % Retest Resample % Resample Rejected % Rejected
PAR-CHR
75
11688
5.41%
617
5.28%
10497
89.81%
590
5.05%
482
4.12%
92
0.79%
PAR-CUL-N
4
29
0.01%
1
3.45%
23
79.31%
9
31.03%
5
17.24%

PAR-CUL-P
7
987
0.46%
63
6.38%
885
89.67%
49
4.96%
39
3.95%

PAR-HERD-S
1
18
0.01%
1
5.56%
15
83.33%
3
16.67%
2
11.11%

PAR-IR-EX
111
468
0.22%
177
37.82%
266
56.84%
28
5.98%
19
4.06%
6
1.28%
PAR-IR-SEV
376
2842
1.32%
797
28.04%
1894
66.64%
145
5.10%
98
3.45%
53
1.86%
PAR-NEW-IN
577
48398
22.41%
1669
3.45%
43834
90.57%
2983
6.16%
2368
4.89%
527
1.09%
PAR-OTHER
163
14924
6.91%
1012
6.78%
13230
88.65%
770
5.16%
619
4.15%
63
0.42%
PAR-PERSIS
297
38358
17.76%
2092
5.45%
34739
90.57%
1668
4.35%
1293
3.37%
234
0.61%
PAR-RAPID
232
713
0.33%
240
33.66%
436
61.15%
36
5.05%
29
4.07%
8
1.12%
PAR-RECUR
672
87822
40.67%
4120
4.69%
79805
90.87%
4617
5.26%
3641
4.15%
256
0.29%
PAR-VOL
29
3877
1.80%
248
6.40%
3499
90.25%
176
4.54%
130
3.35%

SER-FLEXI
87
5795
2.68%
663
11.44%
4738
81.76%
344
5.94%
261
4.50%
133
2.30%
SER-NSR
3
31
0.01%

31
100.00%

SER-OTHER
2
12
0.01%

11
91.67%

1
8.33%
Total
2636
215962
100.00%
11700
5.42%
193903
89.79%
11418
5.29%
8986
4.16%
1373
0.64%

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
2025
January
251
22868
167
1556
5
26

61
5

32

1426

1

2025
February
243
16364
156
1178
1
6

37
10

17

1095

11

2025
March
202
13525
126
756

8

65
3
2
29
1
627
4
15

2025
April
248
22085
151
998

7

159
6

27

790

9

2025
May
211
15568
116
694

6

85
4

23

567

10

2025
June
162
12446
97
514

12

22
3

6

452

15

2025
July
257
18855
141
1102

26

70
3
2
29

960

12

2025
August
122
11101
72
420

4

33
3
1
12

365

1

2025
September
224
17976
140
969

5

72
3

18
3
868

2025
October
272
26569
161
1055
1
19

24
1
1
18
10
927

54

2025
November
248
23981
150
1518

790

60
1

4

638

7

2025
December
196
14624
114
940
555

1

Total

2636
215962
1591
11700
562
909

689
42
6
215
14
8715
4
135

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
1198
144344
766
7242
724

606
19
2
111
4
4984

124

Scotland
58
7369
35
204
6

26

3

142

11

Wales
1380
64249
790
4254
179

57
23
4
101
10
3589
4

Total
2636
215962
1591
11700
909

689
42
6
215
14
8715
4
135

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
May
June
July
August
September
October
November
December
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
5
6
7
8
9
10
11
12
2023
2024
2025
83
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
97
95
65
116
50
84
111
98
82
140
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
151
116
97
141
72
140
161
150
114
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
May
June
July
August
September
October
November
December
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
5
6
7
8
9
10
11
12
2023
2024
2025
19324
16064
18637
15235
13162
15785
17756
19561
17205
17657
20752
13032
20303
18505
18371
17400
14468
17182
18485
13770
10555
19095
17062
13363
20910
14878
12526
20715
14683
11839
17304
10613
16758
25164
22242
13482
975
1036
1277
892
1434
1189 1054
1092
1136
1039
941
1552
1178
998
1102
969
1055
1517
940
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
May
June
July
August
September
October
November
December
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
5
6
7
8
9
10
11
12
2023
2024
2025
6.18%
3.77%
9.91%
3.34%
3.79%
7.97%
5.82%
4.24%
6.01%
6.68%
3.57%
3.64%
3.60%
5.12%
4.39%
3.36%
5.09%
4.06%
3.87%
4.82%
4.02%
4.00%
4.18%
5.75%
5.25%
3.93%
5.18%
4.92%
3.97%
4.65%
4.51%
4.06%
6.37%
4.65%
3.69%
4.35%
6.41%
0.24%
0.10%
5.18%
0.22%
3.72%
0.65%
0.33%
0.24%
1.56%
1.50%
0.18%
0.16%
0.11%
1.05%
0.73%
0.64%
0.92%
0.24%
0.61%
0.28%
0.36%
0.49%
0.35%
0.21%
0.52%
0.23%
1.23%
0.94%
0.66%
1.77%
0.24%
0.46%
0.32%
0.88%
0.19%
1.21%
3.51%
0.29%
2.57%
0.29%
3.00%
2.02%
1.99%
1.77%
0.95%
0.48%
1.61%
3.42%
1.90%
1.23%
2.77%
1.30%
0.44%
0.96%
1.85%
0.73%
3.25%
3.45%
2.29%
1.79%
2.77%
2.27%
0.74%
1.76%
9.57%
1.23%
1.38%
5.50%
1.39%
7.58%
5.99%
5.69%
2.84%
3.23%
1.86%
2.46%
1.79%
1.62%
4.93%
4.74%
2.39%
1.26%
5.03%
3.05%
1.38%
1.48%
4.17%
1.82%
3.60%
3.91%
% Resample
% Rejected
% Pos Fail
% Neg Fail

Figure 6. Proportion of samples retested, or requiring a resample December 2025
0%
5%
10%
15%
20%
Ayrshire
Buckinghamshire
Carmarthenshire
Ceredigion
Cheshire
Cornwall and Isles of Scilly
Cumbria
Devon
Gloucestershire
Greater Manchester
Hampshire
Herefordshire
Leicestershire and Rutland
Lincolnshire
North East Wales
North Eastern Scotland
Northamptonshire
Northern Somerset & South …
Nottinghamshire
Oxfordshire
Pembrokeshire
Powys
Shropshire
Somerset excl North
South Wales
South Yorkshire
Staffordshire
Wiltshire
Worcestershire
4.17%
2.03%
3.23%
7.05%
3.88%
6.40%
2.02%
3.07%
6.07%
2.27%
3.31%
2.83%
3.54%
2.80%
5.34%
6.69%
7.64%
4.76%
1.87%
3.18%
4.17%
3.21%
3.31%
11.11%
2.38%
5.21%
3.86%
4.17%
2.97%
4.38%
8.23%
5.49%
9.17%
3.03%
4.16%
6.79%
2.27%
2.08%
4.46%
3.30%
3.54%
3.46%
6.11%
7.96%
9.19%
4.76%
3.74%
7.03%
4.46%
3.85%
4.96%
11.11%
3.97%
5.56%
4.10%
% Resample
% Retest
County Name
% Resample % Retest
Ayrshire
4.17%
4.17%
Buckinghamshire
2.03%
2.97%
Carmarthenshire
3.23%
4.38%
Ceredigion
7.05%
8.23%
Cheshire
3.88%
5.49%
Cornwall and Isles of Scilly
6.40%
9.17%
Cumbria
2.02%
3.03%
Devon
3.07%
4.16%
Gloucestershire
6.07%
6.79%
Greater Manchester
2.27%
2.27%
Hampshire
0.89%
2.08%
Herefordshire
3.31%
4.46%
Leicestershire and Rutland
2.83%
3.30%
Lincolnshire
3.54%
3.54%
North East Wales
2.80%
3.46%
North Eastern Scotland
5.34%
6.11%
Northamptonshire
6.69%
7.96%
Northern Somerset & South Glou
7.64%
9.19%
Nottinghamshire
4.76%
4.76%
Oxfordshire
1.87%
3.74%
Pembrokeshire
3.18%
7.03%
Powys
0.84%
1.11%
Shropshire
4.17%
4.46%
Somerset excl North
3.21%
3.85%
South Wales
3.31%
4.96%
South Yorkshire
11.11%
11.11%
Staffordshire
2.38%
3.97%
Wiltshire
5.21%
5.56%
Worcestershire
3.86%
4.10%
Total
3.77%
5.02%

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
10027
660
6.6 %
10187
660
6.48%
Scotland
201
1
0.5 %
203
1
0.49%
Wales
4194
279
6.7 %
4234
279
6.59%
Total
14422
940
6.5 %
14624
940
6.43%
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
8405
443
5.3 %
8534
444
5.20%
Scotland
636
15
2.4 %
743
15
2.02%
Wales
5263
483
9.2 %
5400
483
8.94%
Total
14304
941
6.6 %
14677
942
6.42%
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
129513
7242
5.6 %
144344
7242
5.02%
Scotland
7043
204
2.9 %
7369
204
2.77%
Wales
61135
4249
7.0 %
64249
4254
6.62%
Total
197686
11695
5.9 %
215962
11700
5.42%
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
126606
6338
5.0 %
137608
6343
4.61%
Scotland
6181
167
2.7 %
6509
167
2.57%
Wales
65667
5175
7.9 %
70247
5177
7.37%
Total
198446
11680
5.9 %
214364
11687
5.45%
December 2025
December 2024
YTD December 2025
YTD December 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
Oxfordshire
PRV-SE
1
15

Devon
PRV-SP
2
2

West Midlands PRV-SP
2
2

Total

5
19

Table 7b Number of private samples (YTD)
County Name
Test Type* No of Submissions Number of Samples Positive %Positive
Devon
PRV-SE
3
74
18
24.32%
Dorset
PRV-SE
2
19

Gloucestershire
PRV-SE
3
96
18
18.75%
Oxfordshire
PRV-SE
1
15

Staffordshire
PRV-SE
1
1

Wiltshire
PRV-SE
2
18

Worcestershire
PRV-SE
1
23

Berkshire
PRV-SP
1
4

Cheshire
PRV-SP
2
2
1
50.00%
Cornwall and Isles of Scilly PRV-SP
2
3

Devon
PRV-SP
4
7

Dorset
PRV-SP
1
2

Hampshire
PRV-SP
1
1

Somerset excl North
PRV-SP
1
2

West Midlands
PRV-SP
2
2

Wiltshire
PRV-SP
1
2

Total

28
271
37
13.65%
*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 December 2025
Country Totals
Country
Num Submissions Num Samples Tested Num Positive Samples % Positive
England

3
75
1
1.33%
Devon

2
71
1
1.41%
BOV-P
2
71
1
1.41%
Somerset excl North

1
4

BOV-P
1
4

Wales

28
178
28
15.73%
Carmarthenshire

6
12
4
33.33%
BOV-IR-C
5
11
3
27.27%
BOV-IR-EX
1
1
1
100.00%
Ceredigion

2
4

BOV-IR-C
2
4

North East Wales

6
16
4
25.00%
BOV-IR-C
3
11
4
36.36%
BOV-IR-EX
3
5

Pembrokeshire

10
81
18
22.22%
BOV-IR-C
6
53
12
22.64%
BOV-IR-EX
3
20
6
30.00%
BOV-OTHER
1
8

Powys

1
11
2
18.18%
BOV-IR-C
1
11
2
18.18%
South Wales

3
54

BOV-IR-C
1
1

BOV-OTHER
1
30

BOV-P
1
23

Total
31
253
29
11.46%

Table 8b Number of Cattle Antibody Tests YTD
Country Totals
Country
Num Submissions Num Samples Tested Num Positive Samples % Positive
England

15
xx-xxxx-xxxx
88
5.21%
Cheshire

2
420
30
7.14%
BOV-P
2
420
30
7.14%
Cumbria

1
297
13
4.38%
BOV-OTHER
1
297
13
4.38%
Devon

5
541
24
4.44%
BOV-OTHER
1
65
4
6.15%
BOV-P
4
476
20
4.20%
Herefordshire

1
43
3
6.98%
BOV-P
1
43
3
6.98%
Northern Somerset & South Gloucestershire

1
99
1
1.01%
BOV-OTHER
1
99
1
1.01%
Somerset excl North

1
4

BOV-P
1
4

Wiltshire

4
286
17
5.94%
BOV-OTHER
1
178
9
5.06%
BOV-P
3
108
8
7.41%
Wales

426
4648
900
19.36%
Carmarthenshire

66
509
116
22.79%
BOV-IR-C
57
446
99
22.20%
BOV-IR-EX
8
62
17
27.42%
BOV-OTHER
1
1

Ceredigion

25
297
81
27.27%
BOV-IR-C
18
121
41
33.88%
BOV-IR-EX
6
12
7
58.33%
BOV-OTHER
1
164
33
20.12%
North East Wales

61
1206
97
8.04%
BOV-IR-C
46
211
50
23.70%
BOV-IR-EX
9
23
7
30.43%
BOV-P
6
972
40
4.12%
North West Wales

1
4

BOV-IR-C
1
4

Pembrokeshire

206
1873
482
25.73%
BOV-IR-C
170
1572
391
24.87%
BOV-IR-EX
33
209
90
43.06%
BOV-OTHER
3
92
1
1.09%
Powys

34
492
62
12.60%
BOV-IR-C
29
217
41
18.89%
BOV-IR-EX
2
10
4
40.00%
BOV-OTHER
2
155
10
6.45%
BOV-P
1
110
7
6.36%
South Wales

33
267
62
23.22%
BOV-IR-C
27
175
52
29.71%
BOV-IR-EX
3
25
10
40.00%
BOV-OTHER
2
44

BOV-P
1
23

Total
441
6338
988
15.59%