Monthly report: Surveillance Project SB4008 IFNg Tests for Bovine Tuberculosis - August 2023
Source: environment.data.gov.uk (2024-07-03)

Interferon-Gamma Testing for Bovine Tuberculosis - Monthly Reports from January 2023. These monthly reports summarise the gamma tests completed / reported during that calendar month. The report also summarises tests for the whole calendar year to the end of the current month. While all effort is made to ensure the accuracy of the test data, small errors can occur and later corrected in subsequent reports.

Tests are listed by country (England, Wales, Scotland) and by Animal Health Office (AHDO) and the reason for the test. Reports contain test data for the month, the calendar year to date and total tests since rollout (23rd Oct 2006).

Please note: this dataset consists of 12 monthly reports. Data for this report was compiled from field staff inputs and laboratory test information. Subsequent minor data amendments may have been made after the report was originally compiled, and these corrections would appear in the following month’s report. Each report was checked and deemed correct at the time of release

Monthly Report:
Surveillance Project
SB4008 IFNg (TC0651 and
TC0751) & Antibody
(TC0077) tests for bovine
tuberculosis
Number
Report Period 1st - 31st August 2023
Issued 19 September 2023
204

Operational notes on terminology, definitions, re-test and re-samples test
outcomes:
• “Samples” refers to an individual tube of blood taken from an individual animal which is
subsequently submitted for testing. It is generally assumed that the number of samples and
the number of animals are analogous as any duplicate sample blood tube from the same
animal will not be tested. However, minor discrepancies may occur where the same animal is
tested more than once due to a request for a resample or the animal is tested twice under
different categories (for example, as a PAR-RAPID and then as part of a PAR-HERD-S).
• “Submissions” refers to an individual batch or set of samples received for testing.
Submissions may comprise 1 or more samples (for example, if an entire herd is being tested it
is usually sent as 1 submission). It is generally assumed that the number of submissions and
the number of herds are analogous.
• Retests are samples where the first ELISA assay fails and the same sample is retested on a
new ELISA plate. Each sample can be retested only once. A retest is not a reportable test
outcome.
• Resamples are where a sample has been retested and failed a second time, so that the lab
requests a new sample. This is a reportable test outcome.
• Rejects are samples that are not tested by the lab for one of the following reasons: blood
collected into wrong type of vacutainer, samples that have not been maintained at the
appropriate temperature range (22±5C), unlabelled samples, broken or cracked tubes, blood
that is extensively clotted (small clots are OK), samples received after 4pm on the day after
sample collection. Such samples are reported separately in the tables and in figure 5.
• POS (pokeweed mitogen) is a sample positive control reagent which provides a measure of
the quality/viability of the blood sample. A POS fail (< 0.45 optical density reading) may
indicate compromised blood quality as a result of collection/transportation conditions or due
the animal having an unusually low/suppressed cellular immune response.
• NEG (no-antigen control) is a sample negative control which provides a measure of the
background antigen-independent IFN- responses. A NEG fail (> 0.3 optical density reading)
may indicate a laboratory procedures problem (normally resolved during re-test) or that an
animal has unusually high background levels of IFN-g.

1. Interferon-gamma test:
Submission Reason
Explanation
Mandatory?
Possible Herd Slaughter
(PAR-HERD-S)
Parallel interferon-gamma (IFNG) blood testing
of skin test negative cattle to inform whole or
partial herd slaughters decisions
YES, if APHA are
contemplating a herd
slaughter
Persistent TB breakdowns
(OTF status withdrawn)
(PAR-P-CONF) N.B.
PAR-PERSIS from 1st April
2017
Parallel blood IFNG testing of skin test-negative
cattle in persistently infected herds that have
failed to resolve by repeated short-interval skin
testing and fulfill a minimum of biosecurity
standards.
NO (APHA discretion)
Parallel - Low Incidence
(PAR-LOW-IN) N.B.
PAR-NEW-IN from 1st April
2017
Parallel blood IFNG testing to maximise the
probability of removing all infected cattle in a
new herd breakdown as soon as possible after
confirmation of TB.
YES in Area of Low
Incidence
PAR-RAPID
Parallel blood testing of two-times IRs identified
under the severe interpretation of the skin test
used in Wales.
YES (Wales only)
PAR-IR-SEV
Parallel blood testing of all severe IRs identified
in persistent breakdown herds only (coupled
with Idexx antibody testing)
YES (Wales only)
PAR-IR-EX
Parallel IFNG blood testing of all severe IRs in
the Exit Strategy for persistent herds (coupled
with Idexx antibody testing),
and also for new breakdown herds in ITBAN
(Intermediate TB Area North) (not coupled with
IDEXX testing).
YES (Wales only)
PAR-CUL-N
Parallel IFNG blood testing to maximise the
probability of removing all infected cattle in a
new breakdown as soon as possible after
confirmation of TB where herd is situated in
badger control areas of England that have
completed at least 2 effective culls.
YES (in eligible badger
control areas of England)
PAR-CUL-P
Parallel IFNG blood testing to maximise the
probability of removing all infected cattle in a
persistent confirmed breakdown where herd is
situated within badger control areas of England
that have completed at least 2 effective culls
NO (APHA discretion in
badger control areas
England)
PAR-RECUR
England - parallel IFNG blood testing of skin
test-negative cattle in breakdown herds (in HRA
& 6-monthly-testing parts of Edge Area)
occurring within 18 months of lifting restrictions
after a previous breakdown
Wales - parallel IFNG blood testing of skin
test-negative cattle in breakdown herds
occurring within 6 months of lifting restrictions
after a previous breakdown
England - YES
Wales - NO (APHA
discretion)
PAR-CHR
Parallel IFNG blood testing of Chronic
breakdown herds i.e. where VL reactors are
disclosed at a 3rd or subsequent Short Interval
test or a SLH case after a 2nd or subsequent
Short Interval test
England only - YES
PAR-POSTM
Post movement IFNG blood test of cattle
(coupled with Idexx antibody testing)
Yes (currently Wales
ITBAN only)
PAR-OTHER
Other parallel IFNG blood testing not covered in
any of the other scenarios
NO (APHA discretion)
Test Criteria

'NSR' Herds (SER-NSR)
Modified serial IFNG blood testing of individual
skin test reactors and/or IRs in unconfirmed TB
breakdown herds to clarify their infection status
where there is evidence of non-specific
sensitisation to bovine tuberculin (the
“non-specific reactor” procedure)
NO (APHA discretion)
Suspected Fraud
(SER-FRAUD)
Modified serial IFNG blood test of suspected
fraudulent reactors to the skin test (animals with
abnormal skin swellings), in confirmed or
unconfirmed TB incidents.
NO (APHA discretion to
firm up or rule out any
suspicion of fraud and
support any
investigations)
Anomalous reaction
(SER-ANOM)
Modified serial IFNG blood test of suspected
fraudulent reactors to the skin test (animals with
abnormal skin swellings), in confirmed or
unconfirmed TB incidents.
NO (APHA discretion to
firm up or rule out any
suspicion of fraud and
support any
investigations)
Serial Other
(SER-OTHER)
Serial test – other reasons
NO (APHA Discretion)
SER-FLEXI
Extended IFNG blood test to provide flexible
test readout in a confirmed M. bovis-infected
herd where Johne's (M. a. paratuberculosis)
infection or vaccination is suspected to be
interferring with M. bovis infection detection
NO (APHA discretion)
2. IDEXX antibody test:
Submission Reason
Explanation
Mandatory?
BOV-P
Supplementary antibody testing within
persistent infected herds
NO (APHA discretion -
Eng & Wales)
BOV-OTHER
Antibody testing for reasons not covered by the
above
NO (APHA discretion -
Eng & Wales)
BOV-IR-EX
Compulsory antibody testing of IRs as part of
Exit Strategy (coupled with IFNG testing)
YES (Wales only)
BOV-IR-C
Compulsory antibody testing of severe IRs
(coupled IFNG testing)
YES (Wales only)
BOV-POSTM
Compulsory post-movement antibody test of
cattle (coupled with IFNG testing)
YES (Wales only)

Num
samples
August 2023
%
Total 2023
%
Submissions
252
1873
Samples
Total (%)
20681
100.00 %
146788
100.00 %
England
14712
71.14 %
95998
65.40 %
Wales
5366
25.95 %
42725
29.11 %
Scotland
603
2.92 %
8065
5.49 %
Parallel Tests
PAR-CHR
5
0.02 %
2339
1.59 %
PAR-CUL-N
33
0.16 %
4373
2.98 %
PAR-CUL-P
0
0.00 %
539
0.37 %
PAR-HERD-S
0
0.00 %
460
0.31 %
PAR-IR-EX
70
0.34 %
415
0.28 %
PAR-IR-SEV
354
1.71 %
1794
1.22 %
PAR-NEW-IN
5353
25.88 %
45807
31.21 %
PAR-OTHER
xx-xxxx-xxxx
8.20 %
3813
2.60 %
PAR-PERSIS
5128
24.80 %
15043
10.25 %
PAR-POSTM
0
0.00 %
94
0.06 %
PAR-RAPID
97
0.47 %
571
0.39 %
PAR-RECUR
7066
34.17 %
62813
42.79 %
Total(% of all samples)
19801
95.74 %
138061
94.05 %
Serial/Extended Tests
SER-ANOM
1
0.00 %
17
0.01 %
SER-FLEXI
879
4.25 %
8694
5.92 %
SER-FRAUD
0
0.00 %
14
0.01 %
SER-NSR
0
0.00 %
SER-OTHER
0
0.00 %
2
0.00 %
Total(% of all samples)
880
4.26 %
8727
5.95 %
Total
20681
100.00 %
146788
100.00 %
Retests
Total (% of all samples)
1287
6.22 %
10454
7.12 %
England
767
3.71 %
6449
4.39 %
Wales
454
2.20 %
3278
2.23 %
Scotland
66
0.32 %
727
0.50 %
Resamples
Total (% of all samples)
1017
4.92 %
8377
5.71 %
England
606
2.93 %
5275
3.59 %
Wales
360
1.74 %
2461
1.68 %
Scotland
51
0.25 %
641
0.44 %
Rejects
Total (% of all samples)
33
0.16 %
1765
1.20 %
England
24
0.12 %
1220
0.83 %
Wales
9
0.04 %
469
0.32 %
Scotland
0
0.00 %
76
0.05 %
Table 1. Monthly Totals for August 2023
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN
(PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new infection in cull area,
PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with
concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor, SER-FRAUD: serial potential fraud, SER-OTHER: serial
other

PAR-CHR
PAR-CUL-N
PAR-IR-EX
PAR-IR-SEV
PAR-NEW-IN
PAR-OTHER
PAR-PERSIS
PAR-RAPID
PAR-RECUR
SER-ANOM
SER-FLEXI
Breakdown of
Reason for
submission
PAR-CHR
5
0.0 %
PAR-CUL-N
33
0.2 %
PAR-IR-EX
70
0.3 %
PAR-IR-SEV
354
1.7 %
PAR-NEW-IN
5353
25.9 %
PAR-OTHER
xx-xxxx-xxxx
8.2 %
PAR-PERSIS
5128
24.8 %
PAR-RAPID
97
0.5 %
PAR-RECUR
7066
34.2 %
SER-ANOM
1
0.0 %
SER-FLEXI
879
4.3 %
Total
20681
100.00 %
Figure 1. Number of samples submitted in each category during August 2023
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN
(PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new infection in cull area,
PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with
concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor, SER-FRAUD: serial potential fraud, SER-OTHER: serial
other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or
subsequent SI test

0
500
1000
1500
2000
2500
3000
3500
Ayrshire
S Wales
Powys
Pembs
NE Wales
Gwynedd
Gwent
Ceredigion
Carms
W Yorks
W Sussex
Wiltshire
Surrey
Staffs
Somerset excl N
Shropshire
Oxon
Northumb
Lancashire
Heref
Hampshire
Gr Manchester
E Sussex
Dorset
Devon
Cumbria
Corn & Scilly
Cheshire
Bucks
Avon
Scotland
Wales
England
SER-FLEXI
SER-ANOM
PAR-RECUR
PAR-RAPID
PAR-PERSIS
PAR-OTHER
PAR-NEW-IN
PAR-IR-SEV
PAR-IR-EX
PAR-CUL-N
PAR-CHR
Breakdown of
Samples
submitted by
County
Figure 2. Number of samples submitted in each category by County during August 2023
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence,
PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in
confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor, SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown
herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test

0
2000
4000
6000
8000
10000
12000
14000
16000
18000
Wigtown
West lothian
Renfrew
Perthshire
Kirkcudbright
Ayrshire
W Glamorgan
S Wales
Shropshire
S Glamorgan
Powys
Pembs
NW Wales
NE Wales
Mid Glamorgan
Gwynedd
Gwent
Conwy
Cheshire
Ceredigion
Carms
W Yorks
W Sussex
W Midlands
Wiltshire
Warks
Surrey
Staffs
Somerset excl N
Shropshire
Oxon
N Yorks
Notts
Northumb
Northants
Lincs
Leics & Rut
Lancashire
Humberside
Herts
Heref
Hampshire
Gr Manchester
Gloucs
E Sussex
Essex
Dorset
Devon
Derbyshire
Cumbria
Corn & Scilly
Cheshire
Bucks
Berks
Avon
Scotland
Wales
England
SER-OTHER
SER-FRAUD
SER-FLEXI
SER-ANOM
PAR-RECUR
PAR-RAPID
PAR-POSTM
PAR-PERSIS
PAR-OTHER
PAR-NEW-IN
PAR-IR-SEV
PAR-IR-EX
PAR-HERD-S
PAR-CUL-P
PAR-CUL-N
PAR-CHR
Breakdown
of Samples
submitted
by County
Figure 3. Number of samples submitted in each category by County during 2023
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017):
parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER:
parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or
SLH case after a 2nd or subsequent SI test

Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
England - HRA
Avon
PAR-RECUR
4
129
0.62 %
4
3.10 %
109
84.50 %
17
13.18 %
16
12.40 %
0
0.00 %
Corn & Scilly
PAR-RECUR
6
588
2.84 %
8
1.36 %
541
92.01 %
51
8.67 %
39
6.63 %
0
0.00 %
Devon
PAR-CUL-N
3
33
0.16 %
1
3.03 %
25
75.76 %
7
21.21 %
7
21.21 %
0
0.00 %
PAR-OTHER
5
698
3.38 %
43
6.16 %
634
90.83 %
29
4.15 %
21
3.01 %
0
0.00 %
PAR-PERSIS
1
163
0.79 %
2
1.23 %
157
96.32 %
6
3.68 %
4
2.45 %
0
0.00 %
PAR-RECUR
12
2,587
12.51 %
111
4.29 %
2371
91.65 %
140
5.41 %
105
4.06 %
0
0.00 %
Dorset
PAR-OTHER
2
405
1.96 %
34
8.40 %
362
89.38 %
9
2.22 %
9
2.22 %
0
0.00 %
PAR-RECUR
3
27
0.13 %
2
7.41 %
22
81.48 %
5
18.52 %
3
11.11 %
0
0.00 %
Heref
PAR-RECUR
2
403
1.95 %
19
4.71 %
378
93.80 %
7
1.74 %
6
1.49 %
0
0.00 %
Shropshire
PAR-PERSIS
5
818
3.96 %
44
5.38 %
743
90.83 %
36
4.40 %
31
3.79 %
0
0.00 %
PAR-RECUR
2
249
1.20 %
6
2.41 %
227
91.16 %
21
8.43 %
16
6.43 %
0
0.00 %
Somerset excl N
PAR-CHR
1
5
0.02 %
1
20.00 %
4
80.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
8
1,200
5.80 %
43
3.58 %
1132
94.33 %
29
2.42 %
25
2.08 %
0
0.00 %
Staffs
PAR-RECUR
4
703
3.40 %
8
1.14 %
667
94.88 %
32
4.55 %
27
3.84 %
1
0.14 %
Wiltshire
PAR-PERSIS
4
1,259
6.09 %
24
1.91 %
1183
93.96 %
71
5.64 %
44
3.49 %
8
0.64 %
PAR-RECUR
5
582
2.81 %
40
6.87 %
532
91.41 %
12
2.06 %
10
1.72 %
0
0.00 %
England - Edge
Bucks
PAR-NEW-IN
5
1,552
7.50 %
62
3.99 %
1415
91.17 %
84
5.41 %
64
4.12 %
11
0.71 %
PAR-RECUR
1
29
0.14 %
2
6.90 %
25
86.21 %
2
6.90 %
2
6.90 %
0
0.00 %
Cheshire
PAR-OTHER
1
232
1.12 %
28
12.07 %
197
84.91 %
9
3.88 %
7
3.02 %
0
0.00 %
PAR-PERSIS
1
336
1.62 %
1
0.30 %
321
95.54 %
17
5.06 %
14
4.17 %
0
0.00 %
E Sussex
PAR-NEW-IN
5
508
2.46 %
17
3.35 %
476
93.70 %
21
4.13 %
15
2.95 %
0
0.00 %
Hampshire
PAR-RECUR
1
16
0.08 %
0
0.00 %
8
50.00 %
9
56.25 %
8
50.00 %
0
0.00 %
Oxon
PAR-NEW-IN
3
179
0.87 %
4
2.23 %
170
94.97 %
5
2.79 %
5
2.79 %
0
0.00 %
PAR-RECUR
2
46
0.22 %
2
4.35 %
42
91.30 %
3
6.52 %
2
4.35 %
0
0.00 %
England - LRA
Cumbria
PAR-NEW-IN
3
747
3.61 %
81
10.84 %
650
87.01 %
21
2.81 %
15
2.01 %
1
0.13 %
PAR-OTHER
1
207
1.00 %
0
0.00 %
191
92.27 %
19
9.18 %
16
7.73 %
0
0.00 %
Table 2a. Summary by County for August 2023
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N:
new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2a. Summary by County for August 2023 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Gr Manchester
PAR-NEW-IN
1
33
0.16 %
1
3.03 %
27
81.82 %
4
12.12 %
4
12.12 %
1
3.03 %
PAR-PERSIS
2
5
0.02 %
0
0.00 %
5
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Lancashire
PAR-NEW-IN
2
334
1.62 %
2
0.60 %
302
90.42 %
30
8.98 %
30
8.98 %
0
0.00 %
Northumb
PAR-NEW-IN
1
35
0.17 %
1
2.86 %
27
77.14 %
5
14.29 %
5
14.29 %
2
5.71 %
Surrey
PAR-NEW-IN
2
342
1.65 %
2
0.58 %
319
93.27 %
25
7.31 %
21
6.14 %
0
0.00 %
W Sussex
PAR-NEW-IN
2
256
1.24 %
5
1.95 %
217
84.77 %
39
15.23 %
34
13.28 %
0
0.00 %
W Yorks
PAR-NEW-IN
1
6
0.03 %
0
0.00 %
5
83.33 %
2
33.33 %
1
16.67 %
0
0.00 %
England
101
14712
71.14 %
598
4.06 %
13484
91.65 %
767
5.21 %
606
4.12 %
24
0.16 %
Wales - High TB
Carms
PAR-IR-SEV
9
43
0.21 %
8
18.60 %
32
74.42 %
3
6.98 %
3
6.98 %
0
0.00 %
PAR-OTHER
2
137
0.66 %
5
3.65 %
122
89.05 %
11
8.03 %
10
7.30 %
0
0.00 %
PAR-PERSIS
3
616
2.98 %
32
5.19 %
548
88.96 %
43
6.98 %
35
5.68 %
1
0.16 %
PAR-RAPID
5
7
0.03 %
1
14.29 %
6
85.71 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-ANOM
1
1
0.00 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
Ceredigion
PAR-IR-EX
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
3
23
0.11 %
0
0.00 %
21
91.30 %
3
13.04 %
2
8.70 %
0
0.00 %
PAR-RAPID
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Gwent
PAR-IR-SEV
2
14
0.07 %
2
14.29 %
12
85.71 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
3
11
0.05 %
2
18.18 %
9
81.82 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
290
1.40 %
8
2.76 %
259
89.31 %
39
13.45 %
23
7.93 %
0
0.00 %
Pembs
PAR-IR-EX
4
17
0.08 %
4
23.53 %
12
70.59 %
1
5.88 %
1
5.88 %
0
0.00 %
PAR-IR-SEV
27
239
1.16 %
58
24.27 %
173
72.38 %
11
4.60 %
8
3.35 %
0
0.00 %
PAR-OTHER
1
16
0.08 %
0
0.00 %
15
93.75 %
1
6.25 %
1
6.25 %
0
0.00 %
PAR-PERSIS
14
1,196
5.78 %
42
3.51 %
1096
91.64 %
77
6.44 %
57
4.77 %
1
0.08 %
PAR-RAPID
13
27
0.13 %
4
14.81 %
21
77.78 %
3
11.11 %
2
7.41 %
0
0.00 %
PAR-RECUR
1
122
0.59 %
5
4.10 %
109
89.34 %
7
5.74 %
7
5.74 %
1
0.82 %
SER-FLEXI
7
879
4.25 %
34
3.87 %
777
88.40 %
76
8.65 %
64
7.28 %
4
0.46 %
Powys
PAR-IR-EX
2
2
0.01 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
3
6
0.03 %
1
16.67 %
3
50.00 %
3
50.00 %
2
33.33 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N:
new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2a. Summary by County for August 2023 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-RECUR
2
28
0.14 %
1
3.57 %
23
82.14 %
4
14.29 %
4
14.29 %
0
0.00 %
S Wales
PAR-PERSIS
3
207
1.00 %
8
3.86 %
191
92.27 %
10
4.83 %
8
3.86 %
0
0.00 %
PAR-RECUR
1
53
0.26 %
3
5.66 %
38
71.70 %
12
22.64 %
12
22.64 %
0
0.00 %
Wales - Intermediate TB
Carms
PAR-RAPID
1
1
0.00 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
Ceredigion
PAR-IR-EX
1
27
0.13 %
7
25.93 %
17
62.96 %
2
7.41 %
2
7.41 %
1
3.70 %
PAR-RAPID
1
15
0.07 %
9
60.00 %
6
40.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-IR-EX
7
22
0.11 %
3
13.64 %
17
77.27 %
3
13.64 %
2
9.09 %
0
0.00 %
PAR-IR-SEV
4
25
0.12 %
4
16.00 %
21
84.00 %
2
8.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
7
39
0.19 %
2
5.13 %
28
71.79 %
11
28.21 %
9
23.08 %
0
0.00 %
PAR-PERSIS
2
528
2.55 %
5
0.95 %
487
92.23 %
47
8.90 %
35
6.63 %
1
0.19 %
PAR-RECUR
2
14
0.07 %
1
7.14 %
10
71.43 %
3
21.43 %
3
21.43 %
0
0.00 %
Powys
PAR-NEW-IN
2
37
0.18 %
0
0.00 %
17
45.95 %
20
54.05 %
20
54.05 %
0
0.00 %
PAR-RAPID
2
29
0.14 %
3
10.34 %
26
89.66 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-IR-SEV
1
4
0.02 %
0
0.00 %
3
75.00 %
1
25.00 %
1
25.00 %
0
0.00 %
PAR-NEW-IN
2
28
0.14 %
0
0.00 %
19
67.86 %
9
32.14 %
9
32.14 %
0
0.00 %
NE Wales
PAR-IR-SEV
1
6
0.03 %
0
0.00 %
6
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
5
654
3.16 %
8
1.22 %
608
92.97 %
50
7.65 %
38
5.81 %
0
0.00 %
Wales
147
5366
25.95 %
261
4.86 %
4736
88.26 %
454
8.46 %
360
6.71 %
9
0.17 %
Scotland - Scotland
Ayrshire
PAR-NEW-IN
4
603
2.92 %
8
1.33 %
544
90.22 %
66
10.95 %
51
8.46 %
0
0.00 %
Scotland
4
603
2.92 %
8
1.33 %
544
90.22 %
66
10.95 %
51
8.46 %
0
0.00 %
Grand Total
Sum:
252
20681
867
18764
1287
1017
33
*For test criteria please refer to Operational notes.
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N:
new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
England - HRA
PAR-RECUR
1
51
0.03 %
1
1.96 %
49
96.08 %
2
3.92 %
1
1.96 %
0
0.00 %
Avon
PAR-RECUR
23
2,482
1.69 %
88
3.55 %
2291
92.30 %
115
4.63 %
97
3.91 %
6
0.24 %
Corn & Scilly
PAR-CUL-N
3
926
0.63 %
60
6.48 %
804
86.83 %
80
8.64 %
62
6.70 %
0
0.00 %
PAR-CUL-P
1
539
0.37 %
31
5.75 %
481
89.24 %
32
5.94 %
26
4.82 %
1
0.19 %
PAR-HERD-S
1
61
0.04 %
1
1.64 %
59
96.72 %
4
6.56 %
1
1.64 %
0
0.00 %
PAR-OTHER
3
324
0.22 %
24
7.41 %
271
83.64 %
33
10.19 %
29
8.95 %
0
0.00 %
PAR-PERSIS
6
554
0.38 %
42
7.58 %
473
85.38 %
45
8.12 %
39
7.04 %
0
0.00 %
PAR-RECUR
55
10,039
6.84 %
385
3.84 %
8946
89.11 %
828
8.25 %
705
7.02 %
3
0.03 %
Devon
PAR-CHR
2
408
0.28 %
11
2.70 %
373
91.42 %
39
9.56 %
24
5.88 %
0
0.00 %
PAR-CUL-N
16
2,216
1.51 %
97
4.38 %
2001
90.30 %
128
5.78 %
105
4.74 %
13
0.59 %
PAR-HERD-S
2
396
0.27 %
35
8.84 %
326
82.32 %
48
12.12 %
35
8.84 %
0
0.00 %
PAR-OTHER
5
698
0.48 %
43
6.16 %
634
90.83 %
29
4.15 %
21
3.01 %
0
0.00 %
PAR-PERSIS
5
1,100
0.75 %
40
3.64 %
1030
93.64 %
42
3.82 %
30
2.73 %
0
0.00 %
PAR-RECUR
70
12,218
8.32 %
600
4.91 %
10738
87.89 %
790
6.47 %
611
5.00 %
269
2.20 %
Dorset
PAR-OTHER
4
667
0.45 %
56
8.40 %
592
88.76 %
16
2.40 %
13
1.95 %
6
0.90 %
PAR-RECUR
11
2,122
1.45 %
145
6.83 %
1556
73.33 %
76
3.58 %
59
2.78 %
362
17.06 %
Gloucs
PAR-CUL-N
2
35
0.02 %
5
14.29 %
30
85.71 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
10
896
0.61 %
45
5.02 %
809
90.29 %
49
5.47 %
42
4.69 %
0
0.00 %
Heref
PAR-OTHER
2
83
0.06 %
3
3.61 %
74
89.16 %
6
7.23 %
6
7.23 %
0
0.00 %
PAR-RECUR
33
5,650
3.85 %
309
5.47 %
5009
88.65 %
405
7.17 %
332
5.88 %
0
0.00 %
Shropshire
PAR-PERSIS
5
818
0.56 %
44
5.38 %
743
90.83 %
36
4.40 %
31
3.79 %
0
0.00 %
PAR-RECUR
39
4,309
2.94 %
159
3.69 %
3868
89.77 %
347
8.05 %
279
6.47 %
3
0.07 %
Somerset excl N
PAR-CHR
6
369
0.25 %
41
11.11 %
304
82.38 %
34
9.21 %
24
6.50 %
0
0.00 %
PAR-OTHER
2
12
0.01 %
2
16.67 %
9
75.00 %
2
16.67 %
1
8.33 %
0
0.00 %
PAR-PERSIS
2
296
0.20 %
47
15.88 %
226
76.35 %
25
8.45 %
23
7.77 %
0
0.00 %
PAR-RECUR
36
5,001
3.41 %
253
5.06 %
4608
92.14 %
165
3.30 %
136
2.72 %
4
0.08 %
Table 2b. Summary by County for 2023
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2023 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Staffs
PAR-CHR
7
1,562
1.06 %
57
3.65 %
1370
87.71 %
149
9.54 %
134
8.58 %
1
0.06 %
PAR-OTHER
1
38
0.03 %
1
2.63 %
37
97.37 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
34
7,062
4.81 %
149
2.11 %
6406
90.71 %
575
8.14 %
481
6.81 %
26
0.37 %
Wiltshire
PAR-CUL-N
3
992
0.68 %
34
3.43 %
924
93.15 %
42
4.23 %
31
3.13 %
3
0.30 %
PAR-OTHER
2
221
0.15 %
5
2.26 %
181
81.90 %
43
19.46 %
34
15.38 %
1
0.45 %
PAR-PERSIS
4
1,259
0.86 %
24
1.91 %
1183
93.96 %
71
5.64 %
44
3.49 %
8
0.64 %
PAR-RECUR
21
3,073
2.09 %
116
3.77 %
2833
92.19 %
166
5.40 %
118
3.84 %
6
0.20 %
W Midlands
PAR-RECUR
1
144
0.10 %
0
0.00 %
137
95.14 %
17
11.81 %
7
4.86 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
4
784
0.53 %
10
1.28 %
726
92.60 %
50
6.38 %
48
6.12 %
0
0.00 %
PAR-RECUR
1
132
0.09 %
2
1.52 %
118
89.39 %
13
9.85 %
11
8.33 %
1
0.76 %
Bucks
PAR-CUL-N
1
191
0.13 %
3
1.57 %
182
95.29 %
6
3.14 %
6
3.14 %
0
0.00 %
PAR-NEW-IN
23
3,343
2.28 %
109
3.26 %
3038
90.88 %
161
4.82 %
134
4.01 %
62
1.85 %
PAR-RECUR
3
62
0.04 %
2
3.23 %
57
91.94 %
3
4.84 %
3
4.84 %
0
0.00 %
Cheshire
PAR-CUL-N
1
4
0.00 %
0
0.00 %
4
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
4
748
0.51 %
44
5.88 %
686
91.71 %
20
2.67 %
18
2.41 %
0
0.00 %
PAR-PERSIS
9
1,523
1.04 %
33
2.17 %
1361
89.36 %
144
9.46 %
129
8.47 %
0
0.00 %
PAR-RECUR
3
417
0.28 %
4
0.96 %
397
95.20 %
21
5.04 %
16
3.84 %
0
0.00 %
Derbyshire
PAR-NEW-IN
10
684
0.47 %
38
5.56 %
603
88.16 %
53
7.75 %
43
6.29 %
0
0.00 %
PAR-RECUR
8
2,038
1.39 %
56
2.75 %
1868
91.66 %
135
6.62 %
114
5.59 %
0
0.00 %
E Sussex
PAR-NEW-IN
19
1,602
1.09 %
38
2.37 %
1477
92.20 %
109
6.80 %
87
5.43 %
0
0.00 %
Hampshire
PAR-NEW-IN
8
1,242
0.85 %
50
4.03 %
1133
91.22 %
70
5.64 %
56
4.51 %
3
0.24 %
PAR-RECUR
1
16
0.01 %
0
0.00 %
8
50.00 %
9
56.25 %
8
50.00 %
0
0.00 %
Leics & Rut
PAR-NEW-IN
17
2,119
1.44 %
58
2.74 %
1975
93.20 %
105
4.96 %
86
4.06 %
0
0.00 %
PAR-RECUR
1
135
0.09 %
11
8.15 %
120
88.89 %
7
5.19 %
4
2.96 %
0
0.00 %
Northants
PAR-NEW-IN
11
1,176
0.80 %
25
2.13 %
951
80.87 %
95
8.08 %
81
6.89 %
119
10.12 %
PAR-RECUR
2
408
0.28 %
6
1.47 %
374
91.67 %
32
7.84 %
28
6.86 %
0
0.00 %
Notts
PAR-NEW-IN
9
553
0.38 %
13
2.35 %
501
90.60 %
60
10.85 %
37
6.69 %
2
0.36 %
Oxon
PAR-NEW-IN
6
429
0.29 %
8
1.86 %
398
92.77 %
28
6.53 %
23
5.36 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2023 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-PERSIS
3
976
0.66 %
39
4.00 %
895
91.70 %
57
5.84 %
42
4.30 %
0
0.00 %
PAR-RECUR
16
1,916
1.31 %
67
3.50 %
1755
91.60 %
125
6.52 %
94
4.91 %
0
0.00 %
SER-FLEXI
2
55
0.04 %
3
5.45 %
48
87.27 %
4
7.27 %
4
7.27 %
0
0.00 %
Warks
PAR-NEW-IN
7
683
0.47 %
22
3.22 %
638
93.41 %
34
4.98 %
23
3.37 %
0
0.00 %
PAR-OTHER
1
19
0.01 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
19
100.00 %
PAR-RECUR
10
152
0.10 %
5
3.29 %
116
76.32 %
19
12.50 %
17
11.18 %
14
9.21 %
England - LRA
Cumbria
PAR-NEW-IN
16
3,222
2.20 %
151
4.69 %
2860
88.76 %
239
7.42 %
210
6.52 %
1
0.03 %
PAR-OTHER
1
207
0.14 %
0
0.00 %
191
92.27 %
19
9.18 %
16
7.73 %
0
0.00 %
Essex
PAR-NEW-IN
6
405
0.28 %
7
1.73 %
216
53.33 %
7
1.73 %
5
1.23 %
177
43.70 %
Gr Manchester
PAR-NEW-IN
1
33
0.02 %
1
3.03 %
27
81.82 %
4
12.12 %
4
12.12 %
1
3.03 %
PAR-PERSIS
3
46
0.03 %
0
0.00 %
46
100.00 %
1
2.17 %
0
0.00 %
0
0.00 %
Herts
PAR-RECUR
1
79
0.05 %
2
2.53 %
76
96.20 %
3
3.80 %
1
1.27 %
0
0.00 %
Humberside
PAR-NEW-IN
2
68
0.05 %
1
1.47 %
60
88.24 %
10
14.71 %
6
8.82 %
1
1.47 %
Lancashire
PAR-NEW-IN
3
409
0.28 %
4
0.98 %
374
91.44 %
32
7.82 %
31
7.58 %
0
0.00 %
Lincs
PAR-NEW-IN
10
1,109
0.76 %
19
1.71 %
1007
90.80 %
87
7.84 %
83
7.48 %
0
0.00 %
Northumb
PAR-NEW-IN
1
35
0.02 %
1
2.86 %
27
77.14 %
5
14.29 %
5
14.29 %
2
5.71 %
N Yorks
PAR-NEW-IN
7
773
0.53 %
4
0.52 %
740
95.73 %
29
3.75 %
23
2.98 %
6
0.78 %
Surrey
PAR-NEW-IN
6
849
0.58 %
24
2.83 %
677
79.74 %
54
6.36 %
50
5.89 %
98
11.54 %
W Sussex
PAR-NEW-IN
3
618
0.42 %
9
1.46 %
470
76.05 %
148
23.95 %
139
22.49 %
0
0.00 %
W Yorks
PAR-NEW-IN
3
117
0.08 %
0
0.00 %
106
90.60 %
12
10.26 %
9
7.69 %
2
1.71 %
England
661
95998
65.40 %
3822
3.98 %
85681
89.25 %
6449
6.72 %
5275
5.49 %
1220
1.27 %
Wales - High TB
Carms
PAR-IR-EX
10
45
0.03 %
10
22.22 %
33
73.33 %
2
4.44 %
2
4.44 %
0
0.00 %
PAR-IR-SEV
36
230
0.16 %
77
33.48 %
138
60.00 %
16
6.96 %
15
6.52 %
0
0.00 %
PAR-OTHER
5
219
0.15 %
6
2.74 %
197
89.95 %
18
8.22 %
16
7.31 %
0
0.00 %
PAR-PERSIS
18
1,395
0.95 %
64
4.59 %
1256
90.04 %
86
6.16 %
66
4.73 %
9
0.65 %
PAR-RAPID
47
119
0.08 %
37
31.09 %
77
64.71 %
6
5.04 %
4
3.36 %
1
0.84 %
PAR-RECUR
11
502
0.34 %
40
7.97 %
434
86.45 %
30
5.98 %
25
4.98 %
3
0.60 %
SER-ANOM
4
17
0.01 %
0
0.00 %
15
88.24 %
2
11.76 %
2
11.76 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2023 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
SER-FLEXI
15
1,170
0.80 %
71
6.07 %
1057
90.34 %
53
4.53 %
39
3.33 %
3
0.26 %
SER-FRAUD
1
14
0.01 %
0
0.00 %
13
92.86 %
1
7.14 %
1
7.14 %
0
0.00 %
Ceredigion
PAR-IR-EX
11
40
0.03 %
6
15.00 %
29
72.50 %
5
12.50 %
5
12.50 %
0
0.00 %
PAR-IR-SEV
21
137
0.09 %
20
14.60 %
110
80.29 %
9
6.57 %
7
5.11 %
0
0.00 %
PAR-OTHER
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
5
630
0.43 %
29
4.60 %
585
92.86 %
20
3.17 %
14
2.22 %
2
0.32 %
PAR-RAPID
17
34
0.02 %
8
23.53 %
23
67.65 %
2
5.88 %
2
5.88 %
1
2.94 %
PAR-RECUR
3
147
0.10 %
6
4.08 %
137
93.20 %
3
2.04 %
3
2.04 %
1
0.68 %
SER-FLEXI
9
490
0.33 %
86
17.55 %
380
77.55 %
37
7.55 %
24
4.90 %
0
0.00 %
Gwent
PAR-IR-EX
4
28
0.02 %
17
60.71 %
11
39.29 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
6
33
0.02 %
12
36.36 %
19
57.58 %
2
6.06 %
2
6.06 %
0
0.00 %
PAR-OTHER
1
6
0.00 %
0
0.00 %
6
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
19
48
0.03 %
8
16.67 %
36
75.00 %
6
12.50 %
4
8.33 %
0
0.00 %
PAR-RECUR
8
761
0.52 %
33
4.34 %
686
90.14 %
69
9.07 %
41
5.39 %
1
0.13 %
SER-FLEXI
15
1,504
1.02 %
64
4.26 %
1375
91.42 %
77
5.12 %
56
3.72 %
9
0.60 %
Pembs
PAR-HERD-S
1
2
0.00 %
0
0.00 %
2
100.00 %
1
50.00 %
0
0.00 %
0
0.00 %
PAR-IR-EX
37
165
0.11 %
60
36.36 %
95
57.58 %
10
6.06 %
9
5.45 %
1
0.61 %
PAR-IR-SEV
134
1,019
0.69 %
284
27.87 %
677
66.44 %
72
7.07 %
47
4.61 %
11
1.08 %
PAR-OTHER
7
172
0.12 %
7
4.07 %
145
84.30 %
28
16.28 %
20
11.63 %
0
0.00 %
PAR-PERSIS
45
3,823
2.60 %
170
4.45 %
3433
89.80 %
285
7.45 %
209
5.47 %
11
0.29 %
PAR-RAPID
73
211
0.14 %
43
20.38 %
158
74.88 %
14
6.64 %
9
4.27 %
1
0.47 %
PAR-RECUR
19
1,426
0.97 %
72
5.05 %
1219
85.48 %
114
7.99 %
95
6.66 %
40
2.81 %
SER-FLEXI
34
2,805
1.91 %
121
4.31 %
2531
90.23 %
203
7.24 %
146
5.20 %
7
0.25 %
Powys
PAR-IR-EX
8
18
0.01 %
2
11.11 %
14
77.78 %
2
11.11 %
2
11.11 %
0
0.00 %
PAR-IR-SEV
19
129
0.09 %
22
17.05 %
97
75.19 %
15
11.63 %
9
6.98 %
1
0.78 %
PAR-NEW-IN
2
152
0.10 %
13
8.55 %
131
86.18 %
10
6.58 %
8
5.26 %
0
0.00 %
PAR-OTHER
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
9
1,379
0.94 %
31
2.25 %
1284
93.11 %
36
2.61 %
28
2.03 %
36
2.61 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2023 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-POSTM
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
26
44
0.03 %
5
11.36 %
37
84.09 %
3
6.82 %
2
4.55 %
0
0.00 %
PAR-RECUR
13
493
0.34 %
21
4.26 %
398
80.73 %
81
xx-xxxx-xxxx %
71
14.40 %
3
0.61 %
SER-FLEXI
7
2,419
1.65 %
54
2.23 %
2248
92.93 %
104
4.30 %
89
3.68 %
28
1.16 %
S Wales
PAR-IR-SEV
2
21
0.01 %
12
57.14 %
9
42.86 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
3
207
0.14 %
8
3.86 %
191
92.27 %
10
4.83 %
8
3.86 %
0
0.00 %
PAR-RAPID
2
2
0.00 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
53
0.04 %
3
5.66 %
38
71.70 %
12
22.64 %
12
22.64 %
0
0.00 %
W Glamorgan
PAR-OTHER
4
121
0.08 %
6
4.96 %
99
81.82 %
19
15.70 %
15
12.40 %
1
0.83 %
Wales - Intermediate TB
Carms
PAR-IR-SEV
1
4
0.00 %
3
75.00 %
1
25.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
3
253
0.17 %
43
17.00 %
195
77.08 %
15
5.93 %
14
5.53 %
1
0.40 %
PAR-RAPID
6
11
0.01 %
4
36.36 %
6
54.55 %
1
9.09 %
1
9.09 %
0
0.00 %
PAR-RECUR
7
493
0.34 %
23
4.67 %
442
89.66 %
27
5.48 %
23
4.67 %
5
1.01 %
Ceredigion
PAR-IR-EX
3
30
0.02 %
7
23.33 %
20
66.67 %
2
6.67 %
2
6.67 %
1
3.33 %
PAR-IR-SEV
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
2
341
0.23 %
45
13.20 %
271
79.47 %
29
8.50 %
25
7.33 %
0
0.00 %
PAR-RAPID
2
17
0.01 %
9
52.94 %
8
47.06 %
0
0.00 %
0
0.00 %
0
0.00 %
Cheshire
PAR-NEW-IN
2
12
0.01 %
0
0.00 %
9
75.00 %
5
41.67 %
3
25.00 %
0
0.00 %
Mid Glamorgan
PAR-RAPID
3
5
0.00 %
2
40.00 %
2
40.00 %
1
20.00 %
1
20.00 %
0
0.00 %
NE Wales
PAR-IR-EX
27
79
0.05 %
13
xx-xxxx-xxxx %
58
73.42 %
10
12.66 %
8
10.13 %
0
0.00 %
PAR-IR-SEV
22
194
0.13 %
33
17.01 %
158
81.44 %
5
2.58 %
3
1.55 %
0
0.00 %
PAR-NEW-IN
65
4,836
3.29 %
111
2.30 %
4387
90.72 %
370
7.65 %
314
6.49 %
24
0.50 %
PAR-OTHER
1
9
0.01 %
2
22.22 %
7
77.78 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
10
684
0.47 %
12
1.75 %
621
90.79 %
65
9.50 %
50
7.31 %
1
0.15 %
PAR-POSTM
12
65
0.04 %
6
9.23 %
56
86.15 %
4
6.15 %
3
4.62 %
0
0.00 %
PAR-RAPID
17
33
0.02 %
6
18.18 %
26
78.79 %
1
3.03 %
1
3.03 %
0
0.00 %
PAR-RECUR
4
117
0.08 %
3
2.56 %
94
80.34 %
28
23.93 %
20
17.09 %
0
0.00 %
SER-FLEXI
4
86
0.06 %
6
6.98 %
75
87.21 %
5
5.81 %
5
5.81 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2023 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Powys
PAR-IR-EX
1
2
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
4
9
0.01 %
2
22.22 %
6
66.67 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-NEW-IN
11
863
0.59 %
21
2.43 %
753
87.25 %
100
11.59 %
86
9.97 %
3
0.35 %
PAR-OTHER
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
2
29
0.02 %
3
10.34 %
26
89.66 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
3
128
0.09 %
0
0.00 %
118
92.19 %
13
10.16 %
10
7.81 %
0
0.00 %
S Glamorgan
PAR-RAPID
3
6
0.00 %
1
16.67 %
5
83.33 %
0
0.00 %
0
0.00 %
0
0.00 %
Shropshire
PAR-PERSIS
2
5
0.00 %
0
0.00 %
5
100.00 %
1
20.00 %
0
0.00 %
0
0.00 %
Wales - Low TB
Conwy
PAR-NEW-IN
3
217
0.15 %
0
0.00 %
208
95.85 %
13
5.99 %
8
3.69 %
1
0.46 %
Gwynedd
PAR-HERD-S
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
3
6
0.00 %
0
0.00 %
5
83.33 %
1
16.67 %
1
16.67 %
0
0.00 %
PAR-NEW-IN
96
6,619
4.51 %
158
2.39 %
5994
90.56 %
567
8.57 %
443
6.69 %
24
0.36 %
PAR-OTHER
2
11
0.01 %
1
9.09 %
7
63.64 %
3
27.27 %
3
27.27 %
0
0.00 %
PAR-PERSIS
1
7
0.00 %
0
0.00 %
6
85.71 %
1
14.29 %
1
14.29 %
0
0.00 %
PAR-POSTM
5
5
0.00 %
2
40.00 %
3
60.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
2
3
0.00 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
5
291
0.20 %
10
3.44 %
267
91.75 %
18
6.19 %
13
4.47 %
1
0.34 %
NE Wales
PAR-IR-EX
3
8
0.01 %
2
25.00 %
6
75.00 %
1
12.50 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
3
11
0.01 %
4
36.36 %
7
63.64 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
62
4,779
3.26 %
95
1.99 %
4148
86.80 %
508
10.63 %
298
6.24 %
238
4.98 %
PAR-POSTM
9
23
0.02 %
3
13.04 %
20
86.96 %
1
4.35 %
0
0.00 %
0
0.00 %
PAR-RAPID
4
9
0.01 %
0
0.00 %
8
88.89 %
1
11.11 %
1
11.11 %
0
0.00 %
SER-FLEXI
4
165
0.11 %
12
7.27 %
138
83.64 %
17
10.30 %
15
9.09 %
0
0.00 %
NW Wales
PAR-NEW-IN
2
24
0.02 %
0
0.00 %
23
95.83 %
1
4.17 %
1
4.17 %
0
0.00 %
Wales
1139
42725
29.11 %
2176
5.09 %
37619
88.05 %
3278
7.67 %
2461
5.76 %
469
1.10 %
Scotland - Scotland
Ayrshire
PAR-NEW-IN
18
1,941
1.32 %
94
4.84 %
xx-xxxx-xxxx
84.90 %
226
11.64 %
194
9.99 %
5
0.26 %
Kirkcudbright
PAR-CUL-N
1
9
0.01 %
0
0.00 %
8
88.89 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-NEW-IN
21
3,919
2.67 %
160
4.08 %
3505
89.44 %
289
7.37 %
254
6.48 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2023 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Perthshire
PAR-OTHER
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Renfrew
SER-OTHER
1
2
0.00 %
0
0.00 %
2
100.00 %
1
50.00 %
0
0.00 %
0
0.00 %
West lothian
PAR-NEW-IN
9
797
0.54 %
31
3.89 %
640
80.30 %
61
7.65 %
58
7.28 %
68
8.53 %
Wigtown
PAR-NEW-IN
22
1,395
0.95 %
110
7.89 %
1148
82.29 %
149
10.68 %
134
9.61 %
3
0.22 %
Scotland
73
8065
5.49 %
395
4.90 %
6953
86.21 %
727
9.01 %
641
7.95 %
76
0.94 %
Grand Total
Sum:
xx-xxxx-xxxx
6393
130253
10454
8377
1765
*For test criteria please refer to Operational notes.
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 3a. Summary of IFN Gamma results by country and protocol August 2023
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
101
14712
100.0%
598
4.1%
13484
91.7%
767
5.2%
606
4.1%
24
0.2%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
101
14712
100.0%
598
4.1%
13484
91.7%
767
5.2%
606
4.1%
24
0.2%
Scotland
Parallel
4
603
100.0%
8
1.3%
544
90.2%
66
10.9%
51
8.5%
0
0.0 %
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
4
603
100.0%
8
1.3%
544
90.2%
66
10.9%
51
8.5%
0
0.0 %
Wales
Parallel
139
4486
83.6%
227
5.1%
3959
88.3%
377
8.4%
295
6.6%
5
0.1%
Serial/Extended
8
880
16.4%
34
3.9%
777
88.3%
77
8.8%
65
7.4%
4
0.5%
Total
147
5366
100.0%
261
4.9%
4736
88.3%
454
8.5%
360
6.7%
9
0.2%
GB
Parallel
244
19801
95.7%
833
4.2%
17987
90.8%
1210
6.1%
952
4.8%
29
0.1%
Serial/Extended
8
880
4.3%
34
3.9%
777
88.3%
77
8.8%
65
7.4%
4
0.5%
Total
252
20681
100.0%
867
4.2%
18764
90.7%
1287
6.2%
1017
4.9%
33
0.2%
101.00
147.00
4.00
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is possible for the laboratory
to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative result will be reported. Therefore, the total number
of samples = the sum of positive, negative, resample and reject samples only.

Table 3b. Summary of IFN Gamma results by country and protocol (Total 2023)
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
659
95943
99.9%
3819
4.0%
85633
89.3%
6445
6.7%
5271
5.5%
1220
1.3%
Serial/Extended
2
55
0.1%
3
5.5%
48
87.3%
4
7.3%
4
7.3%
0
0.0 %
Total
661
95998
100.0%
3822
4.0%
85681
89.3%
6449
6.7%
5275
5.5%
1220
1.3%
Scotland
Parallel
72
8063
100.0%
395
4.9%
6951
86.2%
726
9.0%
641
7.9%
76
0.9%
Serial/Extended
1
2
0.0%
0
0.0 %
2 100.0%
1
50.0%
0
0.0 %
0
0.0 %
Total
73
8065
100.0%
395
4.9%
6953
86.2%
727
9.0%
641
7.9%
76
0.9%
Wales
Parallel
1046
34055
79.7%
1762
5.2%
29787
87.5%
2779
8.2%
2084
6.1%
422
1.2%
Serial/Extended
93
8670
20.3%
414
4.8%
7832
90.3%
499
5.8%
377
4.3%
47
0.5%
Total
1139
42725
100.0%
2176
5.1%
37619
88.0%
3278
7.7%
2461
5.8%
469
1.1%
GB
Parallel
xx-xxxx-xxxx
94.1%
5976
4.3% 122371
88.6%
9950
7.2%
7996
5.8%
1718
1.2%
Serial/Extended
96
8727
5.9%
417
4.8%
7882
90.3%
504
5.8%
381
4.4%
47
0.5%
Total
xx-xxxx-xxxx
100.0%
6393
4.4% 130253
88.7%
10454
7.1%
8377
5.7%
1765
1.2%
661.00
#######
73.00
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is possible for the laboratory
to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative result will be reported. Therefore, the total number
of samples = the sum of positive, negative, resample and reject samples only.

Submission Reason
No
submissions Samples
Gamma Positive
Gamma Negatives
Retest
Resample
Reject
n
% of total
n
%
n
%
n
%
n
%
n
%
GB
Anomalous reaction
1
1
0.0%
0
0.0 %
0
0.0 %
1
100.0 %
1
100.0 %
0
Extended Flexible IFN-GAMMA test
7
879
4.3%
34
3.9%
777
88.4%
76
8.6 %
64
7.3 %
4
0.5 %
Parallel – chronic breakdown
1
5
0.0%
1
20.0%
4
80.0%
0
0
0
Parallel - IRs in Exit Strategy for persistent her
15
70
0.3%
15
21.4%
49
70.0%
6
8.6 %
5
7.1 %
1
1.4 %
Parallel New Infection
45
5353
25.9%
193
3.6%
4824
90.1%
392
7.3 %
321
6.0 %
15
0.3 %
Parallel - new infection cull area
3
33
0.2%
1
3.0%
25
75.8%
7
21.2 %
7
21.2 %
0
Parallel - Other
12
xx-xxxx-xxxx
8.2%
110
6.5%
1521
89.7%
78
4.6 %
64
3.8 %
0
Parallel Persistent Infection
35
5128
24.8%
158
3.1%
4731
92.3%
307
6.0 %
228
4.4 %
11
0.2 %
Parallel - Rapid Testing Two-times IRs
29
97
0.5%
20
20.6%
72
74.2%
7
7.2 %
5
5.2 %
0
Parallel - Recurrent breakdowns
57
7066
34.2%
263
3.7%
6493
91.9%
393
5.6 %
308
4.4 %
2
0.0 %
Parallel - severe IRs - in persistent herds
47
354
1.7%
72
20.3%
268
75.7%
20
5.6 %
14
4.0 %
0
Total
252
20681
100.0%
867
4.2%
18764
90.7%
1287
6.2 %
1017
4.9 %
33
0.2 %
Table 4a. Summaryof IFN Gamma results by submission reason (August 2023)
England - HRA
Parallel – chronic breakdown
1
5
0.0%
1
20.0%
4
80.0%
0
0
0
Parallel - new infection cull area
3
33
0.2%
1
3.0%
25
75.8%
7
21.2 %
7
21.2 %
0
Parallel - Other
7
1103
5.3%
77
7.0%
996
90.3%
38
3.4 %
30
2.7 %
0
Parallel Persistent Infection
10
2240
10.8%
70
3.1%
2083
93.0%
113
5.0 %
79
3.5 %
8
0.4 %
Parallel - Recurrent breakdowns
46
6468
31.3%
241
3.7%
5979
92.4%
314
4.9 %
247
3.8 %
1
0.0 %
England - HRA
67
9849
47.6%
390
4.0%
9087
92.3%
472
4.8 %
363
3.7 %
9
0.1 %
England - Edge
Parallel New Infection
13
2239
10.8%
83
3.7%
2061
92.1%
110
4.9 %
84
3.8 %
11
0.5 %
Parallel - Other
1
232
1.1%
28
12.1%
197
84.9%
9
3.9 %
7
3.0 %
0
Parallel Persistent Infection
1
336
1.6%
1
0.3%
321
95.5%
17
5.1 %
14
4.2 %
0
Parallel - Recurrent breakdowns
4
91
0.4%
4
4.4%
75
82.4%
14
15.4 %
12
13.2 %
0
England - Edge
19
2898
14.0%
116
4.0%
2654
91.6%
150
5.2 %
117
4.0 %
11
0.4 %
England - LRA
Parallel New Infection
12
1753
8.5%
92
5.2%
1547
88.2%
126
7.2 %
110
6.3 %
4
0.2 %
Parallel - Other
1
207
1.0%
0
0.0 %
191
92.3%
19
9.2 %
16
7.7 %
0
Parallel Persistent Infection
2
5
0.0%
0
0.0 %
5
100.0%
0
0
0
England - LRA
15
1965
9.5%
92
4.7%
1743
88.7%
145
7.4 %
126
6.4 %
4
0.2 %
Wales - High TB
Anomalous reaction
1
1
0.0%
0
0.0 %
0
0.0 %
1
100.0 %
1
100.0 %
0
Extended Flexible IFN-GAMMA test
7
879
4.3%
34
3.9%
777
88.4%
76
8.6 %
64
7.3 %
4
0.5 %
Parallel - IRs in Exit Strategy for persistent her
7
21
0.1%
5
23.8%
15
71.4%
1
4.8 %
1
4.8 %
0
Parallel - Other
3
153
0.7%
5
3.3%
137
89.5%
12
7.8 %
11
7.2 %
0
Parallel Persistent Infection
20
2019
9.8%
82
4.1%
1835
90.9%
130
6.4 %
100
5.0 %
2
0.1 %
Parallel - Rapid Testing Two-times IRs
25
52
0.3%
8
15.4%
40
76.9%
6
11.5 %
4
7.7 %
0
Parallel - Recurrent breakdowns
5
493
2.4%
17
3.4%
429
87.0%
62
12.6 %
46
9.3 %
1
0.2 %
Parallel - severe IRs - in persistent herds
41
319
1.5%
68
21.3%
238
74.6%
17
5.3 %
13
4.1 %
0
Wales - High TB
109
3937
19.0%
219
5.6%
3471
88.2%
305
7.7 %
240
6.1 %
7
0.2 %
Wales - Intermediate TB
Parallel - IRs in Exit Strategy for persistent her
8
49
0.2%
10
20.4%
34
69.4%
5
10.2 %
4
8.2 %
1
2.0 %
Parallel New Infection
9
76
0.4%
2
2.6%
45
59.2%
31
40.8 %
29
38.2 %
0
Parallel Persistent Infection
2
528
2.6%
5
0.9%
487
92.2%
47
8.9 %
35
6.6 %
1
0.2 %
Parallel - Rapid Testing Two-times IRs
4
45
0.2%
12
26.7%
32
71.1%
1
2.2 %
1
2.2 %
0
Parallel - Recurrent breakdowns
2
14
0.1%
1
7.1%
10
71.4%
3
21.4 %
3
21.4 %
0
Parallel - severe IRs - in persistent herds
4
25
0.1%
4
16.0%
21
84.0%
2
8.0 %
0
0
Wales - Intermediate TB
29
737
3.6%
34
4.6%
629
85.3%
89
12.1 %
72
9.8 %
2
0.3 %
Wales - Low TB
Parallel New Infection
7
682
3.3%
8
1.2%
627
91.9%
59
8.7 %
47
6.9 %
0
Parallel - severe IRs - in persistent herds
2
10
0.0%
0
0.0 %
9
90.0%
1
10.0 %
1
10.0 %
0
Wales - Low TB
9
692
3.3%
8
1.2%
636
91.9%
60
8.7 %
48
6.9 %
0
Scotland - Scotland
Parallel New Infection
4
603
2.9%
8
1.3%
544
90.2%
66
10.9 %
51
8.5 %
0
Scotland - Scotland
4
603
2.9%
8
1.3%
544
90.2%
66
10.9 %
51
8.5 %
0

Submission Reason
No
submissions Samples
Gamma Positive
Gamma Negatives
Retest
Resample
Reject
n
% of total
n
%
n
%
n
%
n
%
n
%
GB
Anomalous reaction
4
17
0.0%
0
0.0 %
15
88.2%
2
11.8 %
2
11.8 %
0
Extended Flexible IFN-GAMMA test
90
8694
5.9%
417
4.8%
7852
90.3%
500
5.8 %
378
4.3 %
47
0.5 %
Parallel – chronic breakdown
15
2339
1.6%
109
4.7%
2047
87.5%
222
9.5 %
182
7.8 %
1
0.0 %
Parallel - Herd or Group Slaughter
5
460
0.3%
36
7.8%
388
84.3%
53
11.5 %
36
7.8 %
0
Parallel - IRs in Exit Strategy for persistent herds
104
415
0.3%
119
28.7%
266
64.1%
32
7.7 %
28
6.7 %
2
0.5 %
Parallel New Infection
485
45807
31.2%
1385
3.0%
40598
88.6%
3691
8.1 %
2984
6.5 %
840
1.8 %
Parallel - new infection cull area
27
4373
3.0%
199
4.6%
3953
90.4%
257
5.9 %
205
4.7 %
16
0.4 %
Parallel - Other
52
3813
2.6%
244
6.4%
3335
87.5%
251
6.6 %
206
5.4 %
28
0.7 %
Parallel Persistent Infection
132
15043
10.2%
628
4.2%
13609
90.5%
954
6.3 %
739
4.9 %
67
0.4 %
Parallel - persistent infection cull area
1
539
0.4%
31
5.8%
481
89.2%
32
5.9 %
26
4.8 %
1
0.2 %
Parallel – post-mvt test coupled with IDEXX anti
27
94
0.1%
11
11.7%
80
85.1%
5
5.3 %
3
3.2 %
0
Parallel - Rapid Testing Two-times IRs
223
571
0.4%
128
22.4%
415
72.7%
35
6.1 %
25
4.4 %
3
0.5 %
Parallel - Recurrent breakdowns
454
62813
42.8%
2616
4.2%
55972
89.1%
4297
6.8 %
3477
5.5 %
748
1.2 %
Parallel - severe IRs - in persistent herds
252
1794
1.2%
470
26.2%
1227
68.4%
121
6.7 %
85
4.7 %
12
0.7 %
Serial - Anomalous Reaction
1
14
0.0%
0
0.0 %
13
92.9%
1
7.1 %
1
7.1 %
0
Serial - Other
1
2
0.0%
0
0.0 %
2
100.0%
1
50.0 %
0
0
Total
xx-xxxx-xxxx
100.0%
6393
4.4%
130253
88.7%
10454
7.1 %
8377
5.7 %
1765
1.2 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2023)
England - HRA
Parallel – chronic breakdown
15
2339
1.6%
109
4.7%
2047
87.5%
222
9.5 %
182
7.8 %
1
0.0 %
Parallel - Herd or Group Slaughter
3
457
0.3%
36
7.9%
385
84.2%
52
11.4 %
36
7.9 %
0
Parallel - new infection cull area
24
4169
2.8%
196
4.7%
3759
90.2%
250
6.0 %
198
4.7 %
16
0.4 %
Parallel - Other
19
2043
1.4%
134
6.6%
1798
88.0%
129
6.3 %
104
5.1 %
7
0.3 %
Parallel Persistent Infection
22
4027
2.7%
197
4.9%
3655
90.8%
219
5.4 %
167
4.1 %
8
0.2 %
Parallel - persistent infection cull area
1
539
0.4%
31
5.8%
481
89.2%
32
5.9 %
26
4.8 %
1
0.2 %
Parallel - Recurrent breakdowns
334
53047
36.1%
2250
4.2%
47250
89.1%
3535
6.7 %
2868
5.4 %
679
1.3 %
England - Edge
Extended Flexible IFN-GAMMA test
2
55
0.0%
3
5.5%
48
87.3%
4
7.3 %
4
7.3 %
0
Parallel New Infection
114
12615
8.6%
371
2.9%
11440
90.7%
765
6.1 %
618
4.9 %
186
1.5 %
Parallel - new infection cull area
2
195
0.1%
3
1.5%
186
95.4%
6
3.1 %
6
3.1 %
0

Table 4b. Summary of IFN Gamma results by submission reason (Total 2023) Cont.
Parallel - Other
5
767
0.5%
44
5.7%
686
89.4%
20
2.6 %
18
2.3 %
19
2.5 %
Parallel Persistent Infection
12
2499
1.7%
72
2.9%
2256
90.3%
201
8.0 %
171
6.8 %
0
Parallel - Recurrent breakdowns
45
5276
3.6%
153
2.9%
4813
91.2%
364
6.9 %
295
5.6 %
15
0.3 %
England - LRA
Parallel New Infection
58
7638
5.2%
221
2.9%
6564
85.9%
627
8.2 %
565
7.4 %
288
3.8 %
Parallel - Other
1
207
0.1%
0
0.0 %
191
92.3%
19
9.2 %
16
7.7 %
0
Parallel Persistent Infection
3
46
0.0%
0
0.0 %
46
100.0%
1
2.2 %
0
0
Parallel - Recurrent breakdowns
1
79
0.1%
2
2.5%
76
96.2%
3
3.8 %
1
1.3 %
0
England
661
95998
65.4%
3822
4.0%
85681
89.3%
6449
6.7 %
5275
5.5 %
1220
1.3 %
Wales - High TB
Anomalous reaction
4
17
0.0%
0
0.0 %
15
88.2%
2
11.8 %
2
11.8 %
0
Extended Flexible IFN-GAMMA test
80
8388
5.7%
396
4.7%
7591
90.5%
474
5.7 %
354
4.2 %
47
0.6 %
Parallel - Herd or Group Slaughter
1
2
0.0%
0
0.0 %
2
100.0%
1
50.0 %
0
0
Parallel - IRs in Exit Strategy for persistent herd
70
296
0.2%
95
32.1%
182
61.5%
19
6.4 %
18
6.1 %
1
0.3 %
Parallel New Infection
2
152
0.1%
13
8.6%
131
86.2%
10
6.6 %
8
5.3 %
0
Parallel - Other
19
520
0.4%
20
3.8%
448
86.2%
65
12.5 %
51
9.8 %
1
0.2 %
Parallel Persistent Infection
80
7434
5.1%
302
4.1%
6749
90.8%
437
5.9 %
325
4.4 %
58
0.8 %
Parallel – post-mvt test coupled with IDEXX ant
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Parallel - Rapid Testing Two-times IRs
184
458
0.3%
102
22.3%
332
72.5%
31
6.8 %
21
4.6 %
3
0.7 %
Parallel - Recurrent breakdowns
55
3382
2.3%
175
5.2%
2912
86.1%
309
9.1 %
247
7.3 %
48
1.4 %
Parallel - severe IRs - in persistent herds
218
1569
1.1%
427
27.2%
1050
66.9%
114
7.3 %
80
5.1 %
12
0.8 %
Serial - Anomalous Reaction
1
14
0.0%
0
0.0 %
13
92.9%
1
7.1 %
1
7.1 %
0
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
4
86
0.1%
6
7.0%
75
87.2%
5
5.8 %
5
5.8 %
0
Parallel - IRs in Exit Strategy for persistent herd
31
111
0.1%
22
19.8%
78
70.3%
12
10.8 %
10
9.0 %
1
0.9 %
Parallel New Infection
78
5711
3.9%
132
2.3%
5149
90.2%
475
8.3 %
403
7.1 %
27
0.5 %
Parallel - Other
5
263
0.2%
45
17.1%
203
77.2%
15
5.7 %
14
5.3 %
1
0.4 %
Parallel Persistent Infection
14
1030
0.7%
57
5.5%
897
87.1%
95
9.2 %
75
7.3 %
1
0.1 %
Parallel – post-mvt test coupled with IDEXX ant
12
65
0.0%
6
9.2%
56
86.2%
4
6.2 %
3
4.6 %
0
Parallel - Rapid Testing Two-times IRs
33
101
0.1%
25
24.8%
73
72.3%
3
3.0 %
3
3.0 %
0
Parallel - Recurrent breakdowns
14
738
0.5%
26
3.5%
654
88.6%
68
9.2 %
53
7.2 %
5
0.7 %
Parallel - severe IRs - in persistent herds
28
208
0.1%
39
18.8%
165
79.3%
6
2.9 %
4
1.9 %
0
Wales - Low TB
Extended Flexible IFN-GAMMA test
4
165
0.1%
12
7.3%
138
83.6%
17
10.3 %
15
9.1 %
0
Parallel - Herd or Group Slaughter
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Parallel - IRs in Exit Strategy for persistent herd
3
8
0.0%
2
25.0%
6
75.0%
1
12.5 %
0
0
Parallel New Infection
163
11639
7.9%
253
2.2%
10373
89.1%
1089
9.4 %
750
6.4 %
263
2.3 %

Table 4b. Summary of IFN Gamma results by submission reason (Total 2023) Cont.
Parallel - Other
2
11
0.0%
1
9.1%
7
63.6%
3
27.3 %
3
27.3 %
0
Parallel Persistent Infection
1
7
0.0%
0
0.0 %
6
85.7%
1
14.3 %
1
14.3 %
0
Parallel – post-mvt test coupled with IDEXX ant
14
28
0.0%
5
17.9%
23
82.1%
1
3.6 %
0
0
Parallel - Rapid Testing Two-times IRs
6
12
0.0%
1
8.3%
10
83.3%
1
8.3 %
1
8.3 %
0
Parallel - Recurrent breakdowns
5
291
0.2%
10
3.4%
267
91.8%
18
6.2 %
13
4.5 %
1
0.3 %
Parallel - severe IRs - in persistent herds
6
17
0.0%
4
23.5%
12
70.6%
1
5.9 %
1
5.9 %
0
Wales
1139
42725
29.1%
2176
5.1%
37619
88.0%
3278
7.7 %
2461
5.8 %
469
1.1 %
Scotland - Scotland
Parallel New Infection
70
8052
5.5%
395
4.9%
6941
86.2%
725
9.0 %
640
7.9 %
76
0.9 %
Parallel - new infection cull area
1
9
0.0%
0
0.0 %
8
88.9%
1
11.1 %
1
11.1 %
0
Parallel - Other
1
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Serial - Other
1
2
0.0%
0
0.0 %
2
100.0%
1
50.0 %
0
0
Scotland
73
8065
5.5%
395
4.9%
6953
86.2%
727
9.0 %
641
7.9 %
76
0.9 %

Year
Month
Herds
sampled
Samples
tested
Herds
with
positives
IFNg+
samples
Wrong
Eartags
No PM
No
Cult
No PM
Cult
Pend
No PM
Cult
Neg
No PM
Cult
Mb
No
PM
Cult
Other
VL No
Cult
VL
Cult
Neg
VL
Cult
Pend
VL
Cult
Mb
VL
Cult
Other
NVL
No
Cult
NVL
Cult
Pend
NVL
Cult
Neg
NVL
Cult
Mb
NVL
Cult
Other
2022 September
205
xx-xxxx-xxxx
107
672
13
0
0
0
0
100
0
1
7
0
520
0
31
0
0
October
180
xx-xxxx-xxxx
100
620
12
0
0
0
0
66
0
0
21
0
495
0
26
0
0
November
201
15848
120
673
16
0
0
0
0
60
1
1
13
0
504
1
77
0
0
December
200
13735
109
545
36
0
0
0
0
26
1
0
10
0
431
0
41
0
0
2023 January
281
23696
176
1138
10
0
0
0
0
83
3
0
18
0
922
1
100
1
0
February
265
17538
147
1036
6
0
0
0
0
69
1
4
31
0
837
0
88
0
0
March
266
19894
159
867
9
0
0
0
0
76
0
0
11
0
703
1
67
0
0
April
203
16194
118
782
1
10
0
0
0
0
53
6
0
11
0
634
0
58
1
4
May
208
13834
112
582
9
0
0
0
0
44
0
0
1
3
488
0
37
0
0
June
189
xx-xxxx-xxxx
94
524
2
0
0
0
0
33
0
1
9
1
447
4
24
0
3
July
209
18470
108
597
18
0
0
0
0
80
0
14
0
0
435
47
0
0
0
August
252
20681
140
867
75
306
0
0
0
0
52
0
14
0
0
303
26
0
0
0
Totals (last
12 months)
2659
209211
1490
8903
76
447
0
0
0
0
742
12
35
132
4
6719
80
549
2
7
Table 5a. Summary of PM and culture results for IFNg positive animals.
Please note: “Wrong Eartags” – this column represents those samples in the laboratory information management system (LIMS) for which there is not a matching ear tag in the Cattle TB
Data dataset (SAM) at the time of monthly report trawling. Most resolve in subsequent monthly reports as the field data is added to SAM.

Country
Herds
sampled
Samples
tested
Herds
with
positives
IFNg+
samples
No PM
No
Cult
No PM
Cult
Pend
No PM
Cult
Neg
No PM
Cult
Mb
No
PM
Cult
Other
VL No
Cult
VL
Cult
Neg
VL
Cult
Pend
VL
Cult
Mb
VL
Cult
Other
NVL
No
Cult
NVL
Cult
Pend
NVL
Cult
Neg
NVL
Cult
Mb
NVL
Cult
Other
England
929
135628
641
5188
318
0
0
0
0
593
3
26
30
2
4085
13
19
0
0
Scotland
95
11222
61
496
3
0
0
0
0
123
1
1
31
0
301
2
24
0
0
Wales
1635
62361
788
3219
126
0
0
0
0
26
8
8
71
2
2333
65
506
2
7
Totals
2659
209211
1490
8903
447
0
0
0
0
742
12
35
132
4
6719
80
549
2
7
Table 5b. Summary of culture results for IFNg positive animals (Samples received in last 12 months)

Figure 4a. Number of herds sampled for IFNg and numbers of herds with any
positive IFNg results.
142
233
117
235
163
256
156
211
143
214
147
208
134
164
145
167
144
130
136
140
134
195
100
138
133
129
97
132
103
165
90
130
111
158
99
114
139
109
130
144
98
107
80
100
81
120
91
109
105
176
118
147
107
159
85
118
96
112
95
94
101
108
112
140
0
50
100
150
200
250
300
350
400
450
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
2021
2022
2023
IFNg Positive herds
IFNg Negative herds
25840
1653
26496
1637
33735
1867
26079
1571
25277
1561
26185
1314
23382
1077
16764
912
14734
889
18674
814
24089
1349
12181
759
17250
852
xx-xxxx-xxxx
966
21357
1108
14149
687
22824
918
17067
590
14705
485
18751
758
15643
672
15663
620
15019
673
12991
545
21877
1138
16071
1036
18641
867
15246
782
13167
582
15789
524
17758
597
19562
867
0
5000
10000
15000
20000
25000
30000
35000
40000
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
2021
2022
2023
IFNg positive animals
IFNg non positive animals*
Figure 4b. Number of animals sampled for IFNg and numbers of animals with
positive IFNg results.
*Includes all animals with IFNg test negative, resample and reject outcomes

0
1
2
3
4
5
6
7
8
9
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
September
October
November
December
January
February
March
April
May
June
July
August
2021
2022
2023
%Rejected
%Resampled
% NEG Fail
% POS Fail
% of total
submitted
Figure 5. Rates of resamples including the fail rates broken down for positive
(POS) and negative (NEG) controls.

0
20
40
60
80
100
120
W Yorks
W Sussex
Wiltshire
S Wales
Surrey
Staffs
Somerset excl N
Shropshire
Powys
Pembs
Oxon
Northumb
NE Wales
Lancashire
Heref
Hampshire
Gwynedd
Gwent
Gr Manchester
E Sussex
Dorset
Devon
Cumbria
Corn & Scilly
Cheshire
Ceredigion
Carms
Bucks
Ayrshire
Avon
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during August 2023 (% submission per
County)
County
%Resampled %Retested
Avon
12.40 %
13.18 %
Ayrshire
8.46 %
10.95 %
Bucks
4.17 %
5.44 %
Carms
6.21 %
7.33 %
Ceredigion
5.88 %
7.35 %
Cheshire
3.70 %
4.58 %
Corn & Scilly
6.63 %
8.67 %
Cumbria
3.25 %
4.19 %
Devon
3.94 %
5.23 %
Dorset
2.78 %
3.24 %
E Sussex
2.95 %
4.13 %
Gr Manchester
10.53 %
10.53 %
Gwent
7.30 %
12.38 %
Gwynedd
31.25 %
31.25 %
Hampshire
50.00 %
56.25 %
Heref
1.49 %
1.74 %
Lancashire
8.98 %
8.98 %
NE Wales
6.75 %
9.01 %
Northumb
14.29 %
14.29 %
Oxon
3.11 %
3.56 %
Pembs
5.61 %
7.05 %
Powys
25.49 %
26.47 %
Shropshire
4.40 %
5.34 %
Somerset excl
2.07 %
2.41 %
Staffs
3.84 %
4.55 %
Surrey
6.14 %
7.31 %
S Wales
7.69 %
8.46 %
Wiltshire
2.93 %
4.51 %
W Sussex
13.28 %
15.23 %
W Yorks
16.67 %
33.33 %

Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
14598
598
4.1%
14712
598
4.1%
Wales
5249
261
5.0%
5366
261
4.9%
Scotland
582
8
1.4%
603
8
1.3%
GB
20429
867
4.2%
20681
867
4.2%
Table 6a (i): Number of animals and submissions tested in August 2023
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
90815
3821
4.2%
95998
3822
4.0%
Wales
40079
2176
5.4%
42725
2176
5.1%
Scotland
4981
395
7.9%
8065
395
4.9%
GB
135857
6392
4.7%
146788
6393
4.4%
Table 6b (i): Number of animals and submissions tested in 2023 Up to end of August
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
13069
442
3.4%
13206
442
3.3%
Wales
6205
313
5.0%
6305
313
5.0%
Scotland
235
3
1.3%
247
3
1.2%
GB
19509
758
3.9%
19758
758
3.8%
Table 6a (ii): Number of animals and submissions tested in August 2022
Table 6b (ii): Number of animals and submissions tested in 2022 Up to end of August
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
107054
4184
3.9%
114256
4184
3.7%
Wales
34141
2155
6.3%
36210
2155
6.0%
Scotland
1199
25
2.1%
1272
25
2.0%
GB
142392
6364
4.5%
151738
6364
4.2%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Gloucestershire
PRV-SP
1
2
0
0
Warwickshire
PRV-SE
1
7
0
0
Total
2
9
0
*SER-IOM: Serial High Specificity test – Isle of Man; PRV-SE: Private High Sensitivity test - England;
PRV-SP: Private High Specificity test – England
Table 7a Number of private samples August 2023
Table 7b Number of private samples 2023
* Test type
Num
Submissions
Num
Samples
Num
Positives
Private
% Positive
Cornwall and Isles of Scilly
PRV-SP
4
27
0
0
Cumbria
PRV-SE
1
3
3
100.00 %
Devon
PRV-SE
5
102
10
9.80 %
PRV-SP
1
2
0
0
Gloucestershire
PRV-SE
1
51
2
3.92 %
PRV-SP
1
2
0
0
Herefordshire
PRV-SP
1
1
0
0
Kent
PRV-SP
2
13
0
0
Northamptonshire
PRV-SE
1
6
3
50.00 %
Oxfordshire
PRV-SP
2
2
0
0
Shropshire
PRV-SP
2
2
0
0
Somerset excl North
PRV-SE
1
1
0
0
PRV-SP
1
1
0
0
Warwickshire
PRV-SE
1
7
0
0
West Sussex
PRV-SE
4
553
24
4.34 %
PRV-SP
1
5
0
0
Total
29
778
42
5.40 %

Country
County
Test Reason
Num
Submissions
Num Samples
Tested
Num Positive
Samples
% Positive
Wales
Carmarthenshire
BOV-IR-C
2
14
2
14.3%
BOV-OTHER
2
130
4
3.1%
BOV-P
1
41
6
14.6%
Ceredigion
BOV-IR-C
2
20
5
25.0%
BOV-IR-EX
2
31
3
9.7%
North East Wales
BOV-IR-C
2
12
1
8.3%
Pembrokeshire
BOV-IR-C
14
165
28
17.0%
BOV-IR-EX
1
13
3
23.1%
BOV-OTHER
5
896
36
4.0%
BOV-P
1
13
2
15.4%
South Wales
BOV-IR-C
1
4
2
50.0%
Wales
33
1,339
92
6.9%
All GB
33
1,339
92
6.9 %
Table 8a Number of Cattle Antibody Tests August 2023
Table 8b Number of Cattle Antibody Tests 2023
Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
England
Cornwall and Isles of
Scilly
BOV-P
2
569
38
6.7%
Northern Somerset &
South
Gloucestershire
BOV-P
1
5
0
0
Somerset excl North
BOV-P
1
145
6
4.1%
England
4
719
44
6.1%
Scotland
Ayrshire
BOV-OTHER
1
2
1
50.0%
Scotland
1
2
1
50.0%
Wales
Carmarthenshire
BOV-IR-C
26
206
56
27.2%
BOV-IR-EX
6
36
5
13.9%
BOV-OTHER
3
164
13
7.9%
BOV-P
2
90
7
7.8%
Ceredigion
BOV-IR-C
21
203
33
16.3%
BOV-IR-EX
5
56
11
19.6%
BOV-OTHER
2
113
3
2.7%
North East Wales
BOV-IR-C
18
149
28
18.8%
BOV-IR-EX
5
26
0
0
BOV-OTHER
1
54
0
0
BOV-P
2
67
2
3.0%
BOV-POSTM
8
21
5
23.8%
Pembrokeshire
BOV-IR-C
103
961
171
17.8%
BOV-IR-EX
20
144
25
17.4%
BOV-OTHER
14
1,434
60
4.2%
BOV-P
5
143
12
8.4%
Powys
1
8
1
12.5%
BOV-IR-C
25
140
20
14.3%
BOV-IR-EX
1
8
0
0
BOV-OTHER
1
113
5
4.4%
South Wales
BOV-IR-C
7
48
13
27.1%

Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
BOV-IR-EX
4
28
12
42.9%
BOV-OTHER
1
30
1
3.3%
BOV-P
5
255
16
6.3%
Wales
286
4,497
499
11.1%
All GB
291
5,218
544
10.4 %