Monthly Report: Surveillance Project SB4008 IFNg (TC0651 and TC0751) & Antibody (TC0077) tests for bovine tuberculosis-October 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 October 2023
Issued 10 November 2023
206

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

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

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

Num
samples
October
2023
%
Total 2023
%
Submissions
253
2347
Samples
Total (%)
18656
100.00 %
183514
100.00 %
England
13736
73.63 %
119849
65.31 %
Wales
4475
23.99 %
52610
28.67 %
Scotland
445
2.39 %
11055
6.02 %
Parallel Tests
PAR-CHR
115
0.62 %
2454
1.34 %
PAR-CUL-N
1337
7.17 %
5909
3.22 %
PAR-CUL-P
0
0.00 %
759
0.41 %
PAR-HERD-S
0
0.00 %
461
0.25 %
PAR-IR-EX
79
0.42 %
536
0.29 %
PAR-IR-SEV
400
2.14 %
2548
1.39 %
PAR-NEW-IN
5782
30.99 %
56812
30.96 %
PAR-OTHER
359
1.92 %
4795
2.61 %
PAR-PERSIS
1582
8.48 %
19632
10.70 %
PAR-POSTM
0
0.00 %
94
0.05 %
PAR-RAPID
103
0.55 %
731
0.40 %
PAR-RECUR
7741
41.49 %
78790
42.93 %
Total(% of all samples)
17498
93.79 %
173521
94.55 %
Serial/Extended Tests
SER-ANOM
0
0.00 %
17
0.01 %
SER-FLEXI
1158
6.21 %
9960
5.43 %
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)
1158
6.21 %
9993
5.45 %
Total
18656
100.00 %
183514
100.00 %
Retests
Total (% of all samples)
919
4.93 %
12603
6.87 %
England
678
3.63 %
7792
4.25 %
Wales
224
1.20 %
3891
2.12 %
Scotland
17
0.09 %
920
0.50 %
Resamples
Total (% of all samples)
740
3.97 %
10042
5.47 %
England
551
2.95 %
6306
3.44 %
Wales
174
0.93 %
2928
1.60 %
Scotland
15
0.08 %
808
0.44 %
Rejects
Total (% of all samples)
90
0.48 %
1938
1.06 %
England
56
0.30 %
1339
0.73 %
Wales
32
0.17 %
520
0.28 %
Scotland
2
0.01 %
79
0.04 %
Table 1. Monthly Totals for October 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-FLEXI
Breakdown of
Reason for
submission
PAR-CHR
115
0.6 %
PAR-CUL-N
1337
7.2 %
PAR-IR-EX
79
0.4 %
PAR-IR-SEV
400
2.1 %
PAR-NEW-IN
5782
31.0 %
PAR-OTHER
359
1.9 %
PAR-PERSIS
1582
8.5 %
PAR-RAPID
103
0.6 %
PAR-RECUR
7741
41.5 %
SER-FLEXI
1158
6.2 %
Total
18656
100.00 %
Figure 1. Number of samples submitted in each category during October 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
200
400
600
800
1000
1200
1400
1600
1800
2000
Roxburgh
Powys
Pembs
NE Wales
Monmouthshire and newport
Mid Glamorgan
Gwynedd
Gwent
Ceredigion
Carms
Wiltshire
Warks
Staffs
Somerset excl N
Shropshire
Oxon
N Yorks
Lincs
Leics & Rut
Herts
Heref
Gr Manchester
Gloucs
E Sussex
Dorset
Devon
Derbyshire
Cumbria
Corn & Scilly
Cheshire
Bucks
Berks
Avon
land
Wales
land
SER-FLEXI
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 October 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
20000
Wigtown
West lothian
Roxburgh
Renfrew
Perthshire
Kirkcudbright
Ayrshire
W Glamorgan
S Wales
Shropshire
S Glamorgan
Powys
Pembs
NW Wales
NE Wales
Monmouthshire and newport
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
land
Wales
land
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
7
517
2.77 %
19
3.68 %
486
94.00 %
16
3.09 %
12
2.32 %
0
0.00 %
Corn & Scilly
PAR-RECUR
4
269
1.44 %
12
4.46 %
249
92.57 %
12
4.46 %
8
2.97 %
0
0.00 %
Devon
PAR-CHR
1
115
0.62 %
6
5.22 %
107
93.04 %
3
2.61 %
2
1.74 %
0
0.00 %
PAR-CUL-N
1
585
3.14 %
15
2.56 %
549
93.85 %
23
3.93 %
21
3.59 %
0
0.00 %
PAR-OTHER
3
16
0.09 %
2
12.50 %
11
68.75 %
3
18.75 %
3
18.75 %
0
0.00 %
PAR-RECUR
9
560
3.00 %
39
6.96 %
503
89.82 %
20
3.57 %
15
2.68 %
3
0.54 %
Dorset
PAR-RECUR
2
406
2.18 %
41
10.10 %
344
84.73 %
13
3.20 %
10
2.46 %
11
2.71 %
Gloucs
PAR-RECUR
6
1,502
8.05 %
61
4.06 %
1374
91.48 %
74
4.93 %
66
4.39 %
1
0.07 %
Heref
PAR-RECUR
7
1,697
9.10 %
67
3.95 %
1588
93.58 %
52
3.06 %
42
2.47 %
0
0.00 %
Shropshire
PAR-OTHER
1
280
1.50 %
10
3.57 %
265
94.64 %
6
2.14 %
5
1.79 %
0
0.00 %
PAR-RECUR
1
58
0.31 %
4
6.90 %
48
82.76 %
7
12.07 %
6
10.34 %
0
0.00 %
Somerset excl N
PAR-RECUR
2
427
2.29 %
43
10.07 %
373
87.35 %
14
3.28 %
11
2.58 %
0
0.00 %
Staffs
PAR-RECUR
3
906
4.86 %
12
1.32 %
828
91.39 %
81
8.94 %
66
7.28 %
0
0.00 %
Wiltshire
PAR-RECUR
3
845
4.53 %
24
2.84 %
785
92.90 %
45
5.33 %
36
4.26 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
1
5
0.03 %
0
0.00 %
5
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Bucks
PAR-RECUR
3
356
1.91 %
16
4.49 %
311
87.36 %
23
6.46 %
17
4.78 %
12
3.37 %
Cheshire
PAR-CUL-N
3
752
4.03 %
20
2.66 %
704
93.62 %
35
4.65 %
28
3.72 %
0
0.00 %
PAR-PERSIS
6
1,057
5.67 %
22
2.08 %
999
94.51 %
41
3.88 %
28
2.65 %
8
0.76 %
PAR-RECUR
1
12
0.06 %
0
0.00 %
11
91.67 %
1
8.33 %
1
8.33 %
0
0.00 %
Derbyshire
PAR-NEW-IN
4
94
0.50 %
3
3.19 %
79
84.04 %
12
12.77 %
12
12.77 %
0
0.00 %
PAR-RECUR
2
98
0.53 %
4
4.08 %
86
87.76 %
9
9.18 %
8
8.16 %
0
0.00 %
E Sussex
PAR-NEW-IN
4
717
3.84 %
66
9.21 %
623
86.89 %
41
5.72 %
26
3.63 %
2
0.28 %
Leics & Rut
PAR-NEW-IN
5
675
3.62 %
16
2.37 %
624
92.44 %
36
5.33 %
35
5.19 %
0
0.00 %
Oxon
PAR-RECUR
1
8
0.04 %
0
0.00 %
7
87.50 %
2
25.00 %
1
12.50 %
0
0.00 %
Warks
PAR-RECUR
1
6
0.03 %
2
33.33 %
4
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
England - LRA
Cumbria
PAR-NEW-IN
7
998
5.35 %
27
2.71 %
924
92.59 %
48
4.81 %
40
4.01 %
7
0.70 %
Table 2a. Summary by County for October 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 October 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-PERSIS
1
24
0.13 %
0
0.00 %
17
70.83 %
7
29.17 %
7
29.17 %
0
0.00 %
Herts
PAR-NEW-IN
1
4
0.02 %
0
0.00 %
4
100.00 %
1
25.00 %
0
0.00 %
0
0.00 %
Lincs
PAR-NEW-IN
1
175
0.94 %
8
4.57 %
150
85.71 %
22
12.57 %
17
9.71 %
0
0.00 %
N Yorks
PAR-NEW-IN
2
572
3.07 %
10
1.75 %
522
91.26 %
31
5.42 %
28
4.90 %
12
2.10 %
England
93
13736
73.63 %
549
4.00 %
12580
91.58 %
678
4.94 %
551
4.01 %
56
0.41 %
Wales - High TB
Carms
PAR-IR-EX
2
7
0.04 %
3
42.86 %
4
57.14 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
8
72
0.39 %
19
26.39 %
51
70.83 %
2
2.78 %
2
2.78 %
0
0.00 %
PAR-PERSIS
2
35
0.19 %
0
0.00 %
35
100.00 %
1
2.86 %
0
0.00 %
0
0.00 %
PAR-RAPID
8
33
0.18 %
13
39.39 %
18
54.55 %
2
6.06 %
2
6.06 %
0
0.00 %
Ceredigion
PAR-IR-EX
1
3
0.02 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
5
56
0.30 %
21
37.50 %
35
62.50 %
1
1.79 %
0
0.00 %
0
0.00 %
PAR-PERSIS
1
243
1.30 %
4
1.65 %
231
95.06 %
8
3.29 %
8
3.29 %
0
0.00 %
PAR-RAPID
1
1
0.01 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
1
43
0.23 %
2
4.65 %
41
95.35 %
1
2.33 %
0
0.00 %
0
0.00 %
Gwent
PAR-IR-SEV
1
2
0.01 %
1
50.00 %
0
0.00 %
1
50.00 %
1
50.00 %
0
0.00 %
PAR-OTHER
3
9
0.05 %
4
44.44 %
5
55.56 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
1
11
0.06 %
1
9.09 %
9
81.82 %
1
9.09 %
1
9.09 %
0
0.00 %
PAR-RAPID
3
3
0.02 %
0
0.00 %
2
66.67 %
1
33.33 %
1
33.33 %
0
0.00 %
Monmouthshire and
newport
PAR-RAPID
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Pembs
PAR-IR-EX
5
23
0.12 %
2
8.70 %
20
86.96 %
1
4.35 %
1
4.35 %
0
0.00 %
PAR-IR-SEV
24
190
1.02 %
58
30.53 %
128
67.37 %
5
2.63 %
3
1.58 %
1
0.53 %
PAR-OTHER
1
16
0.09 %
6
37.50 %
10
62.50 %
1
6.25 %
0
0.00 %
0
0.00 %
PAR-PERSIS
6
183
0.98 %
9
4.92 %
167
91.26 %
9
4.92 %
7
3.83 %
0
0.00 %
PAR-RAPID
15
50
0.27 %
9
18.00 %
40
80.00 %
1
2.00 %
1
2.00 %
0
0.00 %
PAR-RECUR
4
27
0.14 %
1
3.70 %
23
85.19 %
4
14.81 %
3
11.11 %
0
0.00 %
SER-FLEXI
6
955
5.12 %
18
1.88 %
903
94.55 %
42
4.40 %
27
2.83 %
7
0.73 %
Powys
PAR-IR-EX
1
37
0.20 %
14
37.84 %
23
62.16 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
2
4
0.02 %
0
0.00 %
3
75.00 %
1
25.00 %
1
25.00 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N:
new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2a. Summary by County for October 2023 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-OTHER
2
38
0.20 %
3
7.89 %
30
78.95 %
6
15.79 %
5
13.16 %
0
0.00 %
PAR-RAPID
3
5
0.03 %
2
40.00 %
2
40.00 %
1
20.00 %
1
20.00 %
0
0.00 %
PAR-RECUR
1
47
0.25 %
3
6.38 %
43
91.49 %
1
2.13 %
1
2.13 %
0
0.00 %
SER-FLEXI
2
160
0.86 %
10
6.25 %
144
90.00 %
6
3.75 %
5
3.13 %
1
0.63 %
Wales - Intermediate TB
Carms
PAR-RAPID
2
2
0.01 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Mid Glamorgan
PAR-RAPID
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-IR-EX
2
8
0.04 %
4
50.00 %
4
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
12
76
0.41 %
17
22.37 %
56
73.68 %
5
6.58 %
3
3.95 %
0
0.00 %
PAR-NEW-IN
7
203
1.09 %
7
3.45 %
177
87.19 %
24
11.82 %
19
9.36 %
0
0.00 %
PAR-PERSIS
2
16
0.09 %
0
0.00 %
13
81.25 %
4
25.00 %
3
18.75 %
0
0.00 %
PAR-RAPID
3
7
0.04 %
3
42.86 %
4
57.14 %
0
0.00 %
0
0.00 %
0
0.00 %
Powys
PAR-NEW-IN
3
954
5.11 %
14
1.47 %
900
94.34 %
29
3.04 %
21
2.20 %
19
1.99 %
PAR-PERSIS
1
12
0.06 %
0
0.00 %
9
75.00 %
3
25.00 %
3
25.00 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-NEW-IN
8
405
2.17 %
5
1.23 %
387
95.56 %
15
3.70 %
11
2.72 %
2
0.49 %
PAR-PERSIS
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-IR-EX
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
2
535
2.87 %
11
2.06 %
478
89.35 %
48
8.97 %
44
8.22 %
2
0.37 %
Wales
155
4475
23.99 %
268
5.99 %
4001
89.41 %
224
5.01 %
174
3.89 %
32
0.72 %
Scotland - Scotland
Roxburgh
PAR-NEW-IN
5
445
2.39 %
8
1.80 %
420
94.38 %
17
3.82 %
15
3.37 %
2
0.45 %
Scotland
5
445
2.39 %
8
1.80 %
420
94.38 %
17
3.82 %
15
3.37 %
2
0.45 %
Grand Total
Sum:
253
18656
825
17001
919
740
90
*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
32
3,537
1.93 %
134
3.79 %
3274
92.56 %
152
4.30 %
123
3.48 %
6
0.17 %
Corn & Scilly
PAR-CUL-N
3
926
0.50 %
60
6.48 %
804
86.83 %
80
8.64 %
62
6.70 %
0
0.00 %
PAR-CUL-P
1
539
0.29 %
31
5.75 %
481
89.24 %
32
5.94 %
26
4.82 %
1
0.19 %
PAR-HERD-S
1
61
0.03 %
1
1.64 %
59
96.72 %
4
6.56 %
1
1.64 %
0
0.00 %
PAR-OTHER
4
349
0.19 %
28
8.02 %
289
82.81 %
36
10.32 %
32
9.17 %
0
0.00 %
PAR-PERSIS
6
554
0.30 %
42
7.58 %
473
85.38 %
45
8.12 %
39
7.04 %
0
0.00 %
PAR-RECUR
65
11,811
6.44 %
449
3.80 %
10587
89.64 %
920
7.79 %
772
6.54 %
3
0.03 %
Devon
PAR-CHR
3
523
0.28 %
17
3.25 %
480
91.78 %
42
8.03 %
26
4.97 %
0
0.00 %
PAR-CUL-N
18
2,859
1.56 %
117
4.09 %
2602
91.01 %
152
5.32 %
127
4.44 %
13
0.45 %
PAR-HERD-S
2
396
0.22 %
35
8.84 %
326
82.32 %
48
12.12 %
35
8.84 %
0
0.00 %
PAR-OTHER
13
1,213
0.66 %
60
4.95 %
1103
90.93 %
75
6.18 %
49
4.04 %
1
0.08 %
PAR-PERSIS
5
1,100
0.60 %
40
3.64 %
1030
93.64 %
42
3.82 %
30
2.73 %
0
0.00 %
PAR-RECUR
90
13,607
7.41 %
666
4.89 %
11993
88.14 %
892
6.56 %
674
4.95 %
274
2.01 %
Dorset
PAR-OTHER
4
667
0.36 %
56
8.40 %
592
88.76 %
16
2.40 %
13
1.95 %
6
0.90 %
PAR-RECUR
14
2,701
1.47 %
190
7.03 %
2060
76.27 %
99
3.67 %
78
2.89 %
373
13.81 %
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
20
3,490
1.90 %
179
5.13 %
3174
90.95 %
161
4.61 %
136
3.90 %
1
0.03 %
Heref
PAR-OTHER
2
83
0.05 %
3
3.61 %
74
89.16 %
6
7.23 %
6
7.23 %
0
0.00 %
PAR-RECUR
48
7,872
4.29 %
394
5.01 %
7095
90.13 %
474
6.02 %
383
4.87 %
0
0.00 %
Shropshire
PAR-CUL-P
1
220
0.12 %
4
1.82 %
202
91.82 %
22
10.00 %
14
6.36 %
0
0.00 %
PAR-OTHER
1
280
0.15 %
10
3.57 %
265
94.64 %
6
2.14 %
5
1.79 %
0
0.00 %
PAR-PERSIS
8
841
0.46 %
45
5.35 %
758
90.13 %
46
5.47 %
38
4.52 %
0
0.00 %
PAR-RECUR
41
4,761
2.59 %
172
3.61 %
4297
90.25 %
364
7.65 %
289
6.07 %
3
0.06 %
Somerset excl N
PAR-CHR
6
369
0.20 %
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 %
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
%
PAR-PERSIS
2
296
0.16 %
47
15.88 %
226
76.35 %
25
8.45 %
23
7.77 %
0
0.00 %
PAR-RECUR
43
6,386
3.48 %
328
5.14 %
5869
91.90 %
225
3.52 %
185
2.90 %
4
0.06 %
Staffs
PAR-CHR
7
1,562
0.85 %
57
3.65 %
1370
87.71 %
149
9.54 %
134
8.58 %
1
0.06 %
PAR-OTHER
1
38
0.02 %
1
2.63 %
37
97.37 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
1
235
0.13 %
5
2.13 %
208
88.51 %
23
9.79 %
22
9.36 %
0
0.00 %
PAR-RECUR
38
8,436
4.60 %
169
2.00 %
7669
90.91 %
693
8.21 %
571
6.77 %
27
0.32 %
Wiltshire
PAR-CUL-N
3
992
0.54 %
34
3.43 %
924
93.15 %
42
4.23 %
31
3.13 %
3
0.30 %
PAR-OTHER
2
221
0.12 %
5
2.26 %
181
81.90 %
43
19.46 %
34
15.38 %
1
0.45 %
PAR-PERSIS
7
1,297
0.71 %
24
1.85 %
1210
93.29 %
77
5.94 %
50
3.86 %
13
1.00 %
PAR-RECUR
28
4,215
2.30 %
148
3.51 %
3901
92.55 %
221
5.24 %
160
3.80 %
6
0.14 %
W Midlands
PAR-RECUR
1
144
0.08 %
0
0.00 %
137
95.14 %
17
11.81 %
7
4.86 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
6
937
0.51 %
17
1.81 %
867
92.53 %
58
6.19 %
53
5.66 %
0
0.00 %
PAR-RECUR
1
132
0.07 %
2
1.52 %
118
89.39 %
13
9.85 %
11
8.33 %
1
0.76 %
Bucks
PAR-CUL-N
1
191
0.10 %
3
1.57 %
182
95.29 %
6
3.14 %
6
3.14 %
0
0.00 %
PAR-HERD-S
1
1
0.00 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
PAR-NEW-IN
23
3,343
1.82 %
109
3.26 %
3038
90.88 %
161
4.82 %
134
4.01 %
62
1.85 %
PAR-RECUR
7
420
0.23 %
18
4.29 %
370
88.10 %
26
6.19 %
20
4.76 %
12
2.86 %
Cheshire
PAR-CUL-N
5
768
0.42 %
21
2.73 %
718
93.49 %
36
4.69 %
29
3.78 %
0
0.00 %
PAR-OTHER
4
748
0.41 %
44
5.88 %
686
91.71 %
20
2.67 %
18
2.41 %
0
0.00 %
PAR-PERSIS
19
2,946
1.61 %
59
2.00 %
2709
91.96 %
202
6.86 %
170
5.77 %
8
0.27 %
PAR-RECUR
4
429
0.23 %
4
0.93 %
408
95.10 %
22
5.13 %
17
3.96 %
0
0.00 %
Derbyshire
PAR-NEW-IN
14
778
0.42 %
41
5.27 %
682
87.66 %
65
8.35 %
55
7.07 %
0
0.00 %
PAR-RECUR
10
2,136
1.16 %
60
2.81 %
1954
91.48 %
144
6.74 %
122
5.71 %
0
0.00 %
E Sussex
PAR-NEW-IN
30
2,646
1.44 %
112
4.23 %
2393
90.44 %
177
6.69 %
139
5.25 %
2
0.08 %
Hampshire
PAR-NEW-IN
9
1,275
0.69 %
50
3.92 %
1166
91.45 %
70
5.49 %
56
4.39 %
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
22
2,794
1.52 %
74
2.65 %
2599
93.02 %
141
5.05 %
121
4.33 %
0
0.00 %
PAR-RECUR
1
135
0.07 %
11
8.15 %
120
88.89 %
7
5.19 %
4
2.96 %
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
%
Northants
PAR-NEW-IN
11
1,176
0.64 %
25
2.13 %
951
80.87 %
95
8.08 %
81
6.89 %
119
10.12 %
PAR-RECUR
2
408
0.22 %
6
1.47 %
374
91.67 %
32
7.84 %
28
6.86 %
0
0.00 %
Notts
PAR-NEW-IN
9
553
0.30 %
13
2.35 %
501
90.60 %
60
10.85 %
37
6.69 %
2
0.36 %
Oxon
PAR-NEW-IN
6
429
0.23 %
8
1.86 %
398
92.77 %
28
6.53 %
23
5.36 %
0
0.00 %
PAR-PERSIS
3
976
0.53 %
39
4.00 %
895
91.70 %
57
5.84 %
42
4.30 %
0
0.00 %
PAR-RECUR
19
2,221
1.21 %
80
3.60 %
2029
91.36 %
145
6.53 %
110
4.95 %
2
0.09 %
SER-FLEXI
2
55
0.03 %
3
5.45 %
48
87.27 %
4
7.27 %
4
7.27 %
0
0.00 %
Warks
PAR-NEW-IN
7
683
0.37 %
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
13
318
0.17 %
9
2.83 %
222
69.81 %
27
8.49 %
23
7.23 %
64
20.13 %
England - LRA
Cumbria
PAR-NEW-IN
23
4,220
2.30 %
178
4.22 %
3784
89.67 %
287
6.80 %
250
5.92 %
8
0.19 %
PAR-OTHER
2
223
0.12 %
0
0.00 %
206
92.38 %
20
8.97 %
17
7.62 %
0
0.00 %
Essex
PAR-NEW-IN
6
405
0.22 %
7
1.73 %
216
53.33 %
7
1.73 %
5
1.23 %
177
43.70 %
Gr Manchester
PAR-NEW-IN
2
253
0.14 %
5
1.98 %
219
86.56 %
32
12.65 %
28
11.07 %
1
0.40 %
PAR-PERSIS
4
70
0.04 %
0
0.00 %
63
90.00 %
8
11.43 %
7
10.00 %
0
0.00 %
Herts
PAR-NEW-IN
2
153
0.08 %
0
0.00 %
149
97.39 %
7
4.58 %
4
2.61 %
0
0.00 %
PAR-RECUR
1
79
0.04 %
2
2.53 %
76
96.20 %
3
3.80 %
1
1.27 %
0
0.00 %
Humberside
PAR-NEW-IN
4
377
0.21 %
3
0.80 %
316
83.82 %
78
20.69 %
56
14.85 %
2
0.53 %
Lancashire
PAR-NEW-IN
3
409
0.22 %
4
0.98 %
374
91.44 %
32
7.82 %
31
7.58 %
0
0.00 %
Lincs
PAR-NEW-IN
11
1,284
0.70 %
27
2.10 %
1157
90.11 %
109
8.49 %
100
7.79 %
0
0.00 %
Northumb
PAR-NEW-IN
2
42
0.02 %
1
2.38 %
33
78.57 %
7
16.67 %
6
14.29 %
2
4.76 %
N Yorks
PAR-NEW-IN
12
1,518
0.83 %
18
1.19 %
1417
93.35 %
77
5.07 %
64
4.22 %
19
1.25 %
Surrey
PAR-NEW-IN
7
869
0.47 %
24
2.76 %
694
79.86 %
58
6.67 %
53
6.10 %
98
11.28 %
W Sussex
PAR-NEW-IN
3
618
0.34 %
9
1.46 %
470
76.05 %
148
23.95 %
139
22.49 %
0
0.00 %
W Yorks
PAR-NEW-IN
3
117
0.06 %
0
0.00 %
106
90.60 %
12
10.26 %
9
7.69 %
2
1.71 %
England
842
119849
65.31 %
4708
3.93 %
107496
89.69 %
7792
6.50 %
6306
5.26 %
1339
1.12 %
Wales - High TB
Carms
PAR-IR-EX
12
52
0.03 %
13
25.00 %
37
71.15 %
2
3.85 %
2
3.85 %
0
0.00 %
PAR-IR-SEV
48
349
0.19 %
109
31.23 %
223
63.90 %
20
5.73 %
17
4.87 %
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-OTHER
6
302
0.16 %
6
1.99 %
268
88.74 %
33
10.93 %
28
9.27 %
0
0.00 %
PAR-PERSIS
24
1,723
0.94 %
66
3.83 %
1566
90.89 %
107
6.21 %
81
4.70 %
10
0.58 %
PAR-RAPID
60
171
0.09 %
52
30.41 %
112
65.50 %
8
4.68 %
6
3.51 %
1
0.58 %
PAR-RECUR
12
663
0.36 %
40
6.03 %
592
89.29 %
35
5.28 %
28
4.22 %
3
0.45 %
SER-ANOM
4
17
0.01 %
0
0.00 %
15
88.24 %
2
11.76 %
2
11.76 %
0
0.00 %
SER-FLEXI
15
1,170
0.64 %
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
13
51
0.03 %
10
19.61 %
36
70.59 %
5
9.80 %
5
9.80 %
0
0.00 %
PAR-IR-SEV
27
199
0.11 %
43
21.61 %
149
74.87 %
11
5.53 %
7
3.52 %
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
6
873
0.48 %
33
3.78 %
816
93.47 %
28
3.21 %
22
2.52 %
2
0.23 %
PAR-RAPID
20
41
0.02 %
10
24.39 %
28
68.29 %
2
4.88 %
2
4.88 %
1
2.44 %
PAR-RECUR
3
147
0.08 %
6
4.08 %
137
93.20 %
3
2.04 %
3
2.04 %
1
0.68 %
SER-FLEXI
10
533
0.29 %
88
16.51 %
421
78.99 %
38
7.13 %
24
4.50 %
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
10
50
0.03 %
15
30.00 %
32
64.00 %
3
6.00 %
3
6.00 %
0
0.00 %
PAR-OTHER
4
15
0.01 %
4
26.67 %
11
73.33 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
2
196
0.11 %
8
4.08 %
176
89.80 %
19
9.69 %
12
6.12 %
0
0.00 %
PAR-RAPID
26
57
0.03 %
8
14.04 %
44
77.19 %
7
12.28 %
5
8.77 %
0
0.00 %
PAR-RECUR
9
784
0.43 %
34
4.34 %
703
89.67 %
75
9.57 %
46
5.87 %
1
0.13 %
SER-FLEXI
15
1,504
0.82 %
64
4.26 %
1375
91.42 %
77
5.12 %
56
3.72 %
9
0.60 %
Monmouthshire and
newport
PAR-RAPID
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
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
49
219
0.12 %
69
31.51 %
139
63.47 %
12
5.48 %
10
4.57 %
1
0.46 %
PAR-IR-SEV
177
1,406
0.77 %
374
26.60 %
955
67.92 %
93
6.61 %
64
4.55 %
13
0.92 %
PAR-OTHER
8
188
0.10 %
13
6.91 %
155
82.45 %
29
15.43 %
20
10.64 %
0
0.00 %
PAR-PERSIS
58
5,243
2.86 %
264
5.04 %
4681
89.28 %
383
7.30 %
282
5.38 %
16
0.31 %
PAR-RAPID
94
274
0.15 %
52
18.98 %
209
76.28 %
17
6.20 %
12
4.38 %
1
0.36 %
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-RECUR
28
2,247
1.22 %
88
3.92 %
1996
88.83 %
154
6.85 %
123
5.47 %
40
1.78 %
SER-FLEXI
46
3,818
2.08 %
140
3.67 %
3480
91.15 %
254
6.65 %
181
4.74 %
17
0.45 %
Powys
PAR-IR-EX
9
55
0.03 %
16
29.09 %
37
67.27 %
2
3.64 %
2
3.64 %
0
0.00 %
PAR-IR-SEV
24
166
0.09 %
30
18.07 %
123
74.10 %
18
10.84 %
12
7.23 %
1
0.60 %
PAR-NEW-IN
2
152
0.08 %
13
8.55 %
131
86.18 %
10
6.58 %
8
5.26 %
0
0.00 %
PAR-OTHER
3
39
0.02 %
3
7.69 %
31
79.49 %
6
15.38 %
5
12.82 %
0
0.00 %
PAR-PERSIS
9
1,379
0.75 %
31
2.25 %
1284
93.11 %
36
2.61 %
28
2.03 %
36
2.61 %
PAR-POSTM
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
33
55
0.03 %
7
12.73 %
45
81.82 %
4
7.27 %
3
5.45 %
0
0.00 %
PAR-RECUR
14
540
0.29 %
24
4.44 %
441
81.67 %
82
15.19 %
72
13.33 %
3
0.56 %
SER-FLEXI
10
2,629
1.43 %
65
2.47 %
2437
92.70 %
114
4.34 %
98
3.73 %
29
1.10 %
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
0.11 %
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
2
63
0.03 %
4
6.35 %
44
69.84 %
16
25.40 %
15
23.81 %
0
0.00 %
W Glamorgan
PAR-OTHER
4
121
0.07 %
6
4.96 %
99
81.82 %
19
15.70 %
15
12.40 %
1
0.83 %
Wales - Intermediate TB
Carms
PAR-IR-SEV
2
14
0.01 %
9
64.29 %
5
35.71 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
3
253
0.14 %
43
17.00 %
195
77.08 %
15
5.93 %
14
5.53 %
1
0.40 %
PAR-RAPID
10
15
0.01 %
6
40.00 %
8
53.33 %
1
6.67 %
1
6.67 %
0
0.00 %
PAR-RECUR
7
493
0.27 %
23
4.67 %
442
89.66 %
27
5.48 %
23
4.67 %
5
1.01 %
Ceredigion
PAR-IR-EX
4
32
0.02 %
7
21.88 %
21
65.63 %
3
9.38 %
3
9.38 %
1
3.13 %
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
0.19 %
45
13.20 %
271
79.47 %
29
8.50 %
25
7.33 %
0
0.00 %
PAR-RAPID
3
18
0.01 %
9
50.00 %
9
50.00 %
1
5.56 %
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
4
6
0.00 %
2
33.33 %
3
50.00 %
1
16.67 %
1
16.67 %
0
0.00 %
NE Wales
PAR-IR-EX
30
88
0.05 %
18
20.45 %
62
70.45 %
10
11.36 %
8
9.09 %
0
0.00 %
PAR-IR-SEV
39
314
0.17 %
55
17.52 %
249
79.30 %
14
4.46 %
10
3.18 %
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-NEW-IN
76
6,143
3.35 %
129
2.10 %
5594
91.06 %
462
7.52 %
387
6.30 %
33
0.54 %
PAR-OTHER
1
9
0.00 %
2
22.22 %
7
77.78 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
13
1,011
0.55 %
13
1.29 %
923
91.30 %
100
9.89 %
74
7.32 %
1
0.10 %
PAR-POSTM
12
65
0.04 %
6
9.23 %
56
86.15 %
4
6.15 %
3
4.62 %
0
0.00 %
PAR-RAPID
22
42
0.02 %
9
21.43 %
32
76.19 %
1
2.38 %
1
2.38 %
0
0.00 %
PAR-RECUR
5
129
0.07 %
3
2.33 %
106
82.17 %
29
22.48 %
20
15.50 %
0
0.00 %
SER-FLEXI
4
86
0.05 %
6
6.98 %
75
87.21 %
5
5.81 %
5
5.81 %
0
0.00 %
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
0.00 %
2
22.22 %
6
66.67 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-NEW-IN
14
1,817
0.99 %
35
1.93 %
1653
90.97 %
129
7.10 %
107
5.89 %
22
1.21 %
PAR-OTHER
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
2
299
0.16 %
13
4.35 %
270
90.30 %
19
6.35 %
16
5.35 %
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
0.07 %
0
0.00 %
118
92.19 %
13
10.16 %
10
7.81 %
0
0.00 %
S Glamorgan
PAR-RAPID
4
8
0.00 %
1
12.50 %
7
87.50 %
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
0.12 %
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
107
7,256
3.95 %
182
2.51 %
6584
90.74 %
595
8.20 %
464
6.39 %
26
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
3
40
0.02 %
0
0.00 %
38
95.00 %
4
10.00 %
2
5.00 %
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
0.16 %
10
3.44 %
267
91.75 %
18
6.19 %
13
4.47 %
1
0.34 %
NE Wales
PAR-IR-EX
4
9
0.00 %
2
22.22 %
7
77.78 %
1
11.11 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
4
13
0.01 %
4
30.77 %
9
69.23 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
66
5,399
2.94 %
109
2.02 %
4689
86.85 %
577
10.69 %
361
6.69 %
240
4.45 %
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
9
23
0.01 %
3
13.04 %
20
86.96 %
1
4.35 %
0
0.00 %
0
0.00 %
PAR-RAPID
4
9
0.00 %
0
0.00 %
8
88.89 %
1
11.11 %
1
11.11 %
0
0.00 %
SER-FLEXI
4
165
0.09 %
12
7.27 %
138
83.64 %
17
10.30 %
15
9.09 %
0
0.00 %
NW Wales
PAR-NEW-IN
2
24
0.01 %
0
0.00 %
23
95.83 %
1
4.17 %
1
4.17 %
0
0.00 %
Wales
1409
52610
28.67 %
2686
5.11 %
46476
88.34 %
3891
7.40 %
2928
5.57 %
520
0.99 %
Scotland - Scotland
Ayrshire
PAR-NEW-IN
22
2,289
1.25 %
96
4.19 %
1957
85.50 %
271
11.84 %
231
10.09 %
5
0.22 %
Kirkcudbright
PAR-CUL-N
1
9
0.00 %
0
0.00 %
8
88.89 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-NEW-IN
26
4,826
2.63 %
196
4.06 %
4342
89.97 %
330
6.84 %
288
5.97 %
0
0.00 %
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 %
Roxburgh
PAR-CUL-N
1
129
0.07 %
6
4.65 %
119
92.25 %
5
3.88 %
4
3.10 %
0
0.00 %
PAR-NEW-IN
6
662
0.36 %
9
1.36 %
633
95.62 %
19
2.87 %
17
2.57 %
3
0.45 %
West lothian
PAR-NEW-IN
9
797
0.43 %
31
3.89 %
640
80.30 %
61
7.65 %
58
7.28 %
68
8.53 %
Wigtown
PAR-NEW-IN
29
2,339
1.27 %
124
5.30 %
2003
85.63 %
232
9.92 %
209
8.94 %
3
0.13 %
Scotland
96
11055
6.02 %
462
4.18 %
9706
87.80 %
920
8.32 %
808
7.31 %
79
0.71 %
Grand Total
Sum:
xx-xxxx-xxxx
7856
163678
12603
10042
1938
*For test criteria please refer to Operational notes.
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 3a. Summary of IFN Gamma results by country and protocol October 2023
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
93
13736
100.0%
549
4.0%
12580
91.6%
678
4.9%
551
4.0%
56
0.4%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
93
13736
100.0%
549
4.0%
12580
91.6%
678
4.9%
551
4.0%
56
0.4%
Scotland
Parallel
5
445
100.0%
8
1.8%
420
94.4%
17
3.8%
15
3.4%
2
0.4%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
5
445
100.0%
8
1.8%
420
94.4%
17
3.8%
15
3.4%
2
0.4%
Wales
Parallel
146
3317
74.1%
238
7.2%
2913
87.8%
175
5.3%
142
4.3%
24
0.7%
Serial/Extended
9
1158
25.9%
30
2.6%
1088
94.0%
49
4.2%
32
2.8%
8
0.7%
Total
155
4475
100.0%
268
6.0%
4001
89.4%
224
5.0%
174
3.9%
32
0.7%
GB
Parallel
244
17498
93.8%
795
4.5%
15913
90.9%
870
5.0%
708
4.0%
82
0.5%
Serial/Extended
9
1158
6.2%
30
2.6%
1088
94.0%
49
4.2%
32
2.8%
8
0.7%
Total
253
18656
100.0%
825
4.4%
17001
91.1%
919
4.9%
740
4.0%
90
0.5%
93.00
155.00
5.00
* 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
840 119794
100.0%
4705
3.9% 107448
89.7%
7788
6.5%
6302
5.3%
1339
1.1%
Serial/Extended
2
55
0.0%
3
5.5%
48
87.3%
4
7.3%
4
7.3%
0
0.0 %
Total
842 119849
100.0%
4708
3.9% 107496
89.7%
7792
6.5%
6306
5.3%
1339
1.1%
Scotland
Parallel
95
11053
100.0%
462
4.2%
9704
87.8%
919
8.3%
808
7.3%
79
0.7%
Serial/Extended
1
2
0.0%
0
0.0 %
2 100.0%
1
50.0%
0
0.0 %
0
0.0 %
Total
96
11055
100.0%
462
4.2%
9706
87.8%
920
8.3%
808
7.3%
79
0.7%
Wales
Parallel
1300
42674
81.1%
2240
5.2%
37465
87.8%
3330
7.8%
2507
5.9%
462
1.1%
Serial/Extended
109
9936
18.9%
446
4.5%
9011
90.7%
561
5.6%
421
4.2%
58
0.6%
Total
1409
52610
100.0%
2686
5.1%
46476
88.3%
3891
7.4%
2928
5.6%
520
1.0%
GB
Parallel
xx-xxxx-xxxx
94.6%
7407
4.3% 154617
89.1%
12037
6.9%
9617
5.5%
1880
1.1%
Serial/Extended
112
9993
5.4%
449
4.5%
9061
90.7%
566
5.7%
425
4.3%
58
0.6%
Total
xx-xxxx-xxxx
100.0%
7856
4.3% 163678
89.2%
12603
6.9%
10042
5.5%
1938
1.1%
842.00
#######
96.00
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is possible for the laboratory
to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative result will be reported. Therefore, the total number
of samples = the sum of positive, negative, resample and reject samples only.

Submission Reason
No
submissions Samples
Gamma Positive
Gamma Negatives
Retest
Resample
Reject
n
% of total
n
%
n
%
n
%
n
%
n
%
GB
Extended Flexible IFN-GAMMA test
9
1158
6.2%
30
2.6%
1088
94.0%
49
4.2 %
32
2.8 %
8
0.7 %
Parallel – chronic breakdown
1
115
0.6%
6
5.2%
107
93.0%
3
2.6 %
2
1.7 %
0
Parallel - IRs in Exit Strategy for persistent her
12
79
0.4%
24
30.4%
54
68.4%
1
1.3 %
1
1.3 %
0
Parallel New Infection
50
5782
31.0%
175
3.0%
5293
91.5%
324
5.6 %
268
4.6 %
46
0.8 %
Parallel - new infection cull area
4
1337
7.2%
35
2.6%
1253
93.7%
58
4.3 %
49
3.7 %
0
Parallel - Other
10
359
1.9%
25
7.0%
321
89.4%
16
4.5 %
13
3.6 %
0
Parallel Persistent Infection
21
1582
8.5%
36
2.3%
1481
93.6%
74
4.7 %
57
3.6 %
8
0.5 %
Parallel - Rapid Testing Two-times IRs
37
103
0.6%
30
29.1%
68
66.0%
5
4.9 %
5
4.9 %
0
Parallel - Recurrent breakdowns
57
7741
41.5%
348
4.5%
7063
91.2%
374
4.8 %
303
3.9 %
27
0.3 %
Parallel - severe IRs - in persistent herds
52
400
2.1%
116
29.0%
273
68.3%
15
3.8 %
10
2.5 %
1
0.3 %
Total
253
18656
100.0%
825
4.4%
17001
91.1%
919
4.9 %
740
4.0 %
90
0.5 %
Table 4a. Summaryof IFN Gamma results by submission reason (October 2023)
England - HRA
Parallel – chronic breakdown
1
115
0.6%
6
5.2%
107
93.0%
3
2.6 %
2
1.7 %
0
Parallel - new infection cull area
1
585
3.1%
15
2.6%
549
93.8%
23
3.9 %
21
3.6 %
0
Parallel - Other
4
296
1.6%
12
4.1%
276
93.2%
9
3.0 %
8
2.7 %
0
Parallel - Recurrent breakdowns
44
7187
38.5%
322
4.5%
6578
91.5%
334
4.6 %
272
3.8 %
15
0.2 %
England - HRA
50
8183
43.9%
355
4.3%
7510
91.8%
369
4.5 %
303
3.7 %
15
0.2 %
England - Edge
Parallel New Infection
14
1491
8.0%
85
5.7%
1331
89.3%
89
6.0 %
73
4.9 %
2
0.1 %
Parallel - new infection cull area
3
752
4.0%
20
2.7%
704
93.6%
35
4.7 %
28
3.7 %
0
Parallel Persistent Infection
6
1057
5.7%
22
2.1%
999
94.5%
41
3.9 %
28
2.6 %
8
0.8 %
Parallel - Recurrent breakdowns
8
480
2.6%
22
4.6%
419
87.3%
35
7.3 %
27
5.6 %
12
2.5 %
England - Edge
31
3780
20.3%
149
3.9%
3453
91.3%
200
5.3 %
156
4.1 %
22
0.6 %
England - LRA
Parallel New Infection
11
1749
9.4%
45
2.6%
1600
91.5%
102
5.8 %
85
4.9 %
19
1.1 %
Parallel Persistent Infection
1
24
0.1%
0
0.0 %
17
70.8%
7
29.2 %
7
29.2 %
0
England - LRA
12
1773
9.5%
45
2.5%
1617
91.2%
109
6.1 %
92
5.2 %
19
1.1 %
Wales - High TB
Extended Flexible IFN-GAMMA test
9
1158
6.2%
30
2.6%
1088
94.0%
49
4.2 %
32
2.8 %
8
0.7 %
Parallel - IRs in Exit Strategy for persistent her
9
70
0.4%
20
28.6%
49
70.0%
1
1.4 %
1
1.4 %
0
Parallel - Other
6
63
0.3%
13
20.6%
45
71.4%
7
11.1 %
5
7.9 %
0
Parallel Persistent Infection
10
472
2.5%
14
3.0%
442
93.6%
19
4.0 %
16
3.4 %
0
Parallel - Rapid Testing Two-times IRs
31
93
0.5%
25
26.9%
63
67.7%
5
5.4 %
5
5.4 %
0
Parallel - Recurrent breakdowns
5
74
0.4%
4
5.4%
66
89.2%
5
6.8 %
4
5.4 %
0
Parallel - severe IRs - in persistent herds
40
324
1.7%
99
30.6%
217
67.0%
10
3.1 %
7
2.2 %
1
0.3 %
Wales - High TB
110
2254
12.1%
205
9.1%
1970
87.4%
96
4.3 %
70
3.1 %
9
0.4 %
Wales - Intermediate TB
Parallel - IRs in Exit Strategy for persistent her
2
8
0.0%
4
50.0%
4
50.0%
0
0
0
Parallel New Infection
10
1157
6.2%
21
1.8%
1077
93.1%
53
4.6 %
40
3.5 %
19
1.6 %
Parallel Persistent Infection
3
28
0.2%
0
0.0 %
22
78.6%
7
25.0 %
6
21.4 %
0
Parallel - Rapid Testing Two-times IRs
6
10
0.1%
5
50.0%
5
50.0%
0
0
0
Parallel - severe IRs - in persistent herds
12
76
0.4%
17
22.4%
56
73.7%
5
6.6 %
3
3.9 %
0
Wales - Intermediate TB
33
1279
6.9%
47
3.7%
1164
91.0%
65
5.1 %
49
3.8 %
19
1.5 %
Wales - Low TB
Parallel - IRs in Exit Strategy for persistent her
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Parallel New Infection
10
940
5.0%
16
1.7%
865
92.0%
63
6.7 %
55
5.9 %
4
0.4 %
Parallel Persistent Infection
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Wales - Low TB
12
942
5.0%
16
1.7%
867
92.0%
63
6.7 %
55
5.8 %
4
0.4 %
Scotland - Scotland
Parallel New Infection
5
445
2.4%
8
1.8%
420
94.4%
17
3.8 %
15
3.4 %
2
0.4 %
Scotland - Scotland
5
445
2.4%
8
1.8%
420
94.4%
17
3.8 %
15
3.4 %
2
0.4 %

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
106
9960
5.4%
449
4.5%
9031
90.7%
562
5.6 %
422
4.2 %
58
0.6 %
Parallel – chronic breakdown
16
2454
1.3%
115
4.7%
2154
87.8%
225
9.2 %
184
7.5 %
1
0.0 %
Parallel - Herd or Group Slaughter
6
461
0.3%
36
7.8%
388
84.2%
54
11.7 %
37
8.0 %
0
Parallel - IRs in Exit Strategy for persistent herds
126
536
0.3%
154
28.7%
350
65.3%
35
6.5 %
30
5.6 %
2
0.4 %
Parallel New Infection
579
56812
31.0%
1671
2.9%
50634
89.1%
4448
7.8 %
3609
6.4 %
898
1.6 %
Parallel - new infection cull area
34
5909
3.2%
246
4.2%
5387
91.2%
322
5.4 %
260
4.4 %
16
0.3 %
Parallel - Other
70
4795
2.6%
288
6.0%
4218
88.0%
329
6.9 %
260
5.4 %
29
0.6 %
Parallel Persistent Infection
179
19632
10.7%
782
4.0%
17793
90.6%
1261
6.4 %
971
4.9 %
86
0.4 %
Parallel - persistent infection cull area
2
759
0.4%
35
4.6%
683
90.0%
54
7.1 %
40
5.3 %
1
0.1 %
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
287
731
0.4%
161
22.0%
535
73.2%
43
5.9 %
32
4.4 %
3
0.4 %
Parallel - Recurrent breakdowns
568
78790
42.9%
3254
4.1%
70630
89.6%
5100
6.5 %
4076
5.2 %
830
1.1 %
Parallel - severe IRs - in persistent herds
341
2548
1.4%
654
25.7%
1765
69.3%
161
6.3 %
115
4.5 %
14
0.5 %
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%
7856
4.3%
163678
89.2%
12603
6.9 %
10042
5.5 %
1938
1.1 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2023)
England - HRA
Parallel – chronic breakdown
16
2454
1.3%
115
4.7%
2154
87.8%
225
9.2 %
184
7.5 %
1
0.0 %
Parallel - Herd or Group Slaughter
3
457
0.2%
36
7.9%
385
84.2%
52
11.4 %
36
7.9 %
0
Parallel - new infection cull area
26
4812
2.6%
216
4.5%
4360
90.6%
274
5.7 %
220
4.6 %
16
0.3 %
Parallel - Other
29
2863
1.6%
165
5.8%
2550
89.1%
184
6.4 %
140
4.9 %
8
0.3 %
Parallel Persistent Infection
29
4323
2.4%
203
4.7%
3905
90.3%
258
6.0 %
202
4.7 %
13
0.3 %
Parallel - persistent infection cull area
2
759
0.4%
35
4.6%
683
90.0%
54
7.1 %
40
5.3 %
1
0.1 %
Parallel - Recurrent breakdowns
421
67011
36.5%
2830
4.2%
60105
89.7%
4220
6.3 %
3379
5.0 %
697
1.0 %
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 - Herd or Group Slaughter
1
1
0.0%
0
0.0 %
0
0.0 %
1
100.0 %
1
100.0 %
0
Parallel New Infection
137
14614
8.0%
471
3.2%
13233
90.6%
889
6.1 %
722
4.9 %
188
1.3 %

Table 4b. Summary of IFN Gamma results by submission reason (Total 2023) Cont.
Parallel - new infection cull area
6
959
0.5%
24
2.5%
900
93.8%
42
4.4 %
35
3.6 %
0
Parallel - Other
5
767
0.4%
44
5.7%
686
89.4%
20
2.6 %
18
2.3 %
19
2.5 %
Parallel Persistent Infection
22
3922
2.1%
98
2.5%
3604
91.9%
259
6.6 %
212
5.4 %
8
0.2 %
Parallel - Recurrent breakdowns
58
6215
3.4%
190
3.1%
5603
90.2%
425
6.8 %
343
5.5 %
79
1.3 %
England - LRA
Parallel New Infection
78
10265
5.6%
276
2.7%
8935
87.0%
854
8.3 %
745
7.3 %
309
3.0 %
Parallel - Other
2
223
0.1%
0
0.0 %
206
92.4%
20
9.0 %
17
7.6 %
0
Parallel Persistent Infection
4
70
0.0%
0
0.0 %
63
90.0%
8
11.4 %
7
10.0 %
0
Parallel - Recurrent breakdowns
1
79
0.0%
2
2.5%
76
96.2%
3
3.8 %
1
1.3 %
0
England
842 119849
65.3%
4708
3.9%
107496
89.7%
7792
6.5 %
6306
5.3 %
1339
1.1 %
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
96
9654
5.3%
428
4.4%
8770
90.8%
536
5.6 %
398
4.1 %
58
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
87
405
0.2%
125
30.9%
260
64.2%
21
5.2 %
19
4.7 %
1
0.2 %
Parallel New Infection
2
152
0.1%
13
8.6%
131
86.2%
10
6.6 %
8
5.3 %
0
Parallel - Other
26
666
0.4%
33
5.0%
564
84.7%
87
13.1 %
68
10.2 %
1
0.2 %
Parallel Persistent Infection
102
9621
5.2%
410
4.3%
8714
90.6%
583
6.1 %
433
4.5 %
64
0.7 %
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
236
601
0.3%
130
21.6%
440
73.2%
38
6.3 %
28
4.7 %
3
0.5 %
Parallel - Recurrent breakdowns
68
4444
2.4%
196
4.4%
3913
88.1%
365
8.2 %
287
6.5 %
48
1.1 %
Parallel - severe IRs - in persistent herds
288
2191
1.2%
583
26.6%
1491
68.1%
145
6.6 %
103
4.7 %
14
0.6 %
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
0.0%
6
7.0%
75
87.2%
5
5.8 %
5
5.8 %
0
Parallel - IRs in Exit Strategy for persistent herd
35
122
0.1%
27
22.1%
83
68.0%
13
10.7 %
11
9.0 %
1
0.8 %
Parallel New Infection
92
7972
4.3%
164
2.1%
7256
91.0%
596
7.5 %
497
6.2 %
55
0.7 %
Parallel - Other
5
263
0.1%
45
17.1%
203
77.2%
15
5.7 %
14
5.3 %
1
0.4 %
Parallel Persistent Infection
19
1656
0.9%
71
4.3%
1469
88.7%
149
9.0 %
115
6.9 %
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
45
118
0.1%
30
25.4%
85
72.0%
4
3.4 %
3
2.5 %
0
Parallel - Recurrent breakdowns
15
750
0.4%
26
3.5%
666
88.8%
69
9.2 %
53
7.1 %
5
0.7 %
Parallel - severe IRs - in persistent herds
46
338
0.2%
67
19.8%
260
76.9%
15
4.4 %
11
3.3 %
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
4
9
0.0%
2
22.2%
7
77.8%
1
11.1 %
0
0

Table 4b. Summary of IFN Gamma results by submission reason (Total 2023) Cont.
Parallel New Infection
178
12896
7.0%
291
2.3%
11504
89.2%
1186
9.2 %
834
6.5 %
267
2.1 %
Parallel - Other
2
11
0.0%
1
9.1%
7
63.6%
3
27.3 %
3
27.3 %
0
Parallel Persistent Infection
3
40
0.0%
0
0.0 %
38
95.0%
4
10.0 %
2
5.0 %
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
7
19
0.0%
4
21.1%
14
73.7%
1
5.3 %
1
5.3 %
0
Wales
1409
52610
28.7%
2686
5.1%
46476
88.3%
3891
7.4 %
2928
5.6 %
520
1.0 %
Scotland - Scotland
Parallel New Infection
92
10913
5.9%
456
4.2%
9575
87.7%
913
8.4 %
803
7.4 %
79
0.7 %
Parallel - new infection cull area
2
138
0.1%
6
4.3%
127
92.0%
6
4.3 %
5
3.6 %
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
96
11055
6.0%
462
4.2%
9706
87.8%
920
8.3 %
808
7.3 %
79
0.7 %

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 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
17
0
922
1
100
2
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
4
0
0
0
0
44
2
0
2
0
493
0
37
0
0
June
189
xx-xxxx-xxxx
94
524
2
0
0
0
0
33
2
0
9
0
447
0
31
0
0
July
209
18470
108
597
15
0
0
0
0
80
0
0
10
4
437
0
47
1
0
August
252
20681
140
867
7
0
0
0
0
95
0
2
19
4
675
29
34
0
2
September
221
18070
112
638
59
0
0
0
0
52
0
14
0
0
460
51
0
0
0
October
253
18656
139
825
170
294
0
0
0
0
0
0
2
0
0
100
0
0
0
0
Totals (last
12 months)
2748
213097
1534
9074
171
468
0
0
0
0
671
16
23
133
8
6643
83
580
4
6
Table 5a. Summary of PM and culture results for IFNg positive animals.
Please note: “Wrong Eartags” – this column represents those samples in the laboratory information management system (LIMS) for which there is not a matching ear tag in the Cattle TB
Data dataset (SAM) at the time of monthly report trawling. Most resolve in subsequent monthly reports as the field data is added to SAM.

Country
Herds
sampled
Samples
tested
Herds
with
positives
IFNg+
samples
No PM
No
Cult
No PM
Cult
Pend
No PM
Cult
Neg
No PM
Cult
Mb
No
PM
Cult
Other
VL No
Cult
VL
Cult
Neg
VL
Cult
Pend
VL
Cult
Mb
VL
Cult
Other
NVL
No
Cult
NVL
Cult
Pend
NVL
Cult
Neg
NVL
Cult
Mb
NVL
Cult
Other
England
964
136691
648
5236
314
0
0
0
0
519
5
9
46
6
4029
10
28
2
2
Scotland
108
12168
63
498
51
0
0
0
0
122
1
2
30
0
240
24
24
0
0
Wales
1676
64238
823
3340
103
0
0
0
0
30
10
12
57
2
2374
49
528
2
4
Totals
2748
213097
1534
9074
468
0
0
0
0
671
16
23
133
8
6643
83
580
4
6
Table 5b. Summary of culture results for IFNg positive animals (Samples received in last 12 months)

Figure 4a. Number of herds sampled for IFNg and numbers of herds with any
positive IFNg results.
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
109
112
114
139
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
September
October
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
19561
867
17206
638
17659
825
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
September
October
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
September
October
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
10
20
30
40
50
60
Wiltshire
Staffs
Shropshire
Powys
Oxon
NE Wales
Mid Glamorgan
Leics & Rut
Heref
Gwent
Gloucs
Dorset
Derbyshire
Corn & Scilly
Ceredigion
Bucks
Avon
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during October 2023 (% submission per
County)
County
%Resampled %Retested
Avon
2.32 %
3.09 %
Berks
Bucks
4.78 %
6.46 %
Carms
2.68 %
3.36 %
Ceredigion
2.31 %
2.89 %
Cheshire
3.13 %
4.23 %
Corn & Scilly
2.97 %
4.46 %
Cumbria
4.01 %
4.81 %
Derbyshire
10.42 %
10.94 %
Devon
3.21 %
3.84 %
Dorset
2.46 %
3.20 %
E Sussex
3.63 %
5.72 %
Gloucs
4.39 %
4.93 %
Gr Manchester
29.17 %
29.17 %
Gwent
12.00 %
12.00 %
Gwynedd
2.71 %
3.69 %
Heref
2.47 %
3.06 %
Herts
25.00 %
Leics & Rut
5.19 %
5.33 %
Lincs
9.71 %
12.57 %
Mid Glamorgan
Monmouthshire
NE Wales
8.16 %
9.57 %
N Yorks
4.90 %
5.42 %
Oxon
12.50 %
25.00 %
Pembs
2.91 %
4.36 %
Powys
2.94 %
3.74 %
Roxburgh
3.37 %
3.82 %
Shropshire
3.25 %
3.85 %
Somerset excl
2.58 %
3.28 %
Staffs
7.28 %
8.94 %
Warks
Wiltshire
4.26 %
5.33 %

Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
13599
549
4.0%
13736
549
4.0%
Wales
4449
268
6.0%
4475
268
6.0%
Scotland
436
8
1.8%
445
8
1.8%
GB
18484
825
4.5%
18656
825
4.4%
Table 6a (i): Number of animals and submissions tested in October 2023
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
112659
4707
4.2%
119849
4708
3.9%
Wales
49148
2686
5.5%
52610
2686
5.1%
Scotland
7006
462
6.6%
11055
462
4.2%
GB
xx-xxxx-xxxx
7855
4.7%
183514
7856
4.3%
Table 6b (i): Number of animals and submissions tested in 2023 Up to end of October
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
11845
402
3.4%
11946
402
3.4%
Wales
4352
213
4.9%
4374
213
4.9%
Scotland
86
5
5.8%
86
5
5.8%
GB
16283
620
3.8%
xx-xxxx-xxxx
620
3.8%
Table 6a (ii): Number of animals and submissions tested in October 2022
Table 6b (ii): Number of animals and submissions tested in 2022 Up to end of October
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
128217
5022
3.9%
137044
5022
3.7%
Wales
41390
2544
6.1%
44218
2544
5.8%
Scotland
3153
90
2.9%
3316
90
2.7%
GB
172758
7656
4.4%
184578
7656
4.1%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Total
0
0
0
*SER-IOM: Serial High Specificity test – Isle of Man; PRV-SE: Private High Sensitivity test - England;
PRV-SP: Private High Specificity test – England
Table 7a Number of private samples October 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
7
214
14
6.54 %
PRV-SP
2
3
0
0
Essex
PRV-SP
1
5
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
33
896
46
5.13 %

Country
County
Test Reason
Num
Submissions
Num Samples
Tested
Num Positive
Samples
% Positive
Wales
Carmarthenshire
BOV-IR-C
5
47
7
14.9%
Ceredigion
BOV-IR-C
4
56
5
8.9%
BOV-IR-EX
1
3
2
66.7%
BOV-OTHER
1
43
1
2.3%
North East Wales
BOV-IR-C
8
71
11
15.5%
BOV-IR-EX
1
7
4
57.1%
Pembrokeshire
BOV-IR-C
13
157
31
19.7%
BOV-IR-EX
2
18
5
27.8%
BOV-OTHER
2
45
0
0
Powys
BOV-IR-C
1
2
0
0
BOV-IR-EX
1
37
2
5.4%
BOV-OTHER
1
21
0
0
South Wales
BOV-IR-C
1
4
0
0
Wales
41
511
68
13.3%
All GB
41
511
68
13.3 %
Table 8a Number of Cattle Antibody Tests October 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-OTHER
1
27
2
7.4%
BOV-P
2
569
38
6.7%
Herefordshire
BOV-P
1
316
8
2.5%
Northern Somerset &
South
Gloucestershire
BOV-P
1
5
0
0
Somerset excl North
BOV-P
1
145
6
4.1%
England
6
1,062
54
5.1%
Scotland
Ayrshire
BOV-OTHER
1
2
1
50.0%
Scotland
1
2
1
50.0%
Wales
Carmarthenshire
BOV-IR-C
37
299
66
22.1%
BOV-IR-EX
6
36
5
13.9%
BOV-OTHER
4
196
13
6.6%
BOV-P
2
90
7
7.8%
Ceredigion
BOV-IR-C
27
270
38
14.1%
BOV-IR-EX
6
59
13
22.0%
BOV-OTHER
3
156
4
2.6%
North East Wales
BOV-IR-C
33
269
43
16.0%
BOV-IR-EX
6
33
4
12.1%
BOV-OTHER
1
54
0
0
BOV-P
2
67
2
3.0%
BOV-POSTM
8
21
5
23.8%
Pembrokeshire
BOV-IR-C
139
1,428
227
15.9%
BOV-IR-EX
28
197
31
15.7%
BOV-OTHER
16
1,479
60
4.1%
BOV-P
5
143
12
8.4%
Powys
1
8
1
12.5%

Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
BOV-IR-C
29
176
22
12.5%
BOV-IR-EX
3
46
3
6.5%
BOV-OTHER
2
134
5
3.7%
South Wales
BOV-IR-C
12
82
14
17.1%
BOV-IR-EX
4
28
12
42.9%
BOV-OTHER
1
30
1
3.3%
BOV-P
5
255
16
6.3%
Wales
380
5,556
604
10.9%
All GB
387
6,620
659
10.0 %