Monthly report: Surveillance Project SB4008 IFNg Tests for Bovine Tuberculosis - November 2022
Source: environment.data.gov.uk (2023-01-25)

Interferon-Gamma Testing for Bovine Tuberculosis - Monthly Reports from January 2022. 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.

Cattle interferon-gamma (IFNg) tests (and test outcome) carried out between 1st Jan and 31st Dec 2009. 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. Attribution statement:

Monthly Report:
Surveillance Project
SB4008 IFNg (TC0651 and
TC0751) & Antibody
(TC0077) tests for bovine
tuberculosis
Number 195
Report Period 1st - 30th November 2022
Issued 10 December 2022

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
November
2022
%
Total 2022
%
Submissions
201
2569
Samples
Total (%)
15848
100.00 %
200426
100.00 %
England
8505
53.67 %
145549
72.62 %
Wales
6794
42.87 %
51012
25.45 %
Scotland
549
3.46 %
3865
1.93 %
Parallel Tests
PAR-CHR
241
1.52 %
2862
1.43 %
PAR-CUL-N
0
0.00 %
8108
4.05 %
PAR-CUL-P
2264
14.29 %
8743
4.36 %
PAR-HERD-S
21
0.13 %
488
0.24 %
PAR-IR-EX
39
0.25 %
375
0.19 %
PAR-IR-SEV
267
1.68 %
1995
1.00 %
PAR-NEW-IN
3990
25.18 %
42937
21.42 %
PAR-OTHER
136
0.86 %
3409
1.70 %
PAR-PERSIS
1057
6.67 %
17693
8.83 %
PAR-POSTM
28
0.18 %
404
0.20 %
PAR-RAPID
59
0.37 %
800
0.40 %
PAR-RECUR
5364
33.85 %
95294
47.55 %
Total(% of all samples)
13466
84.97 %
183108
91.36 %
Serial/Extended Tests
SER-ANOM
0
0.00 %
SER-FLEXI
2382
15.03 %
17312
8.64 %
SER-FRAUD
0
0.00 %
SER-NSR
0
0.00 %
4
0.00 %
SER-OTHER
0
0.00 %
2
0.00 %
Total(% of all samples)
2382
15.03 %
17318
8.64 %
Total
15848
100.00 %
200426
100.00 %
Retests
Total (% of all samples)
1096
6.92 %
16023
7.99 %
England
507
3.20 %
11478
5.73 %
Wales
538
3.39 %
4223
2.11 %
Scotland
51
0.32 %
322
0.16 %
Resamples
Total (% of all samples)
882
5.57 %
12809
6.39 %
England
417
2.63 %
9257
4.62 %
Wales
424
2.68 %
3292
1.64 %
Scotland
41
0.26 %
260
0.13 %
Rejects
Total (% of all samples)
85
0.54 %
1071
0.53 %
England
8
0.05 %
811
0.40 %
Wales
75
0.47 %
255
0.13 %
Scotland
2
0.01 %
5
0.00 %
Table 1. Monthly Totals for November 2022
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN
(PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new infection in cull area,
PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with
concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor, SER-FRAUD: serial potential fraud, SER-OTHER: serial
other

PAR-CHR
PAR-CUL-P
PAR-HERD-S
PAR-IR-EX
PAR IR SEV
PAR-NEW-IN
PAR-OTHER
PAR-PERSIS
PAR-POSTM
PAR-RAPID
PAR-RECUR
SER-FLEXI
Breakdown of
Reason for
submission
PAR-CHR
241
1.5 %
PAR-CUL-P
2264
14.3 %
PAR-HERD-S
21
0.1 %
PAR-IR-EX
39
0.2 %
PAR-IR-SEV
267
1.7 %
PAR-NEW-IN
3990
25.2 %
PAR-OTHER
136
0.9 %
PAR-PERSIS
1057
6.7 %
PAR-POSTM
28
0.2 %
PAR-RAPID
59
0.4 %
PAR-RECUR
5364
33.8 %
SER-FLEXI
2382
15.0 %
Total
15848
100.00 %
Figure 1. Number of samples submitted in each category during November 2022
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
Ayrshire
Powys
Pembs
NE Wales
Gwynedd
Gwent
Ceredigion
Carms
Wiltshire
Warks
Surrey
Staffs
Somerset excl N
Shropshire
Oxon
Heref
Hampshire
Gloucs
Devon
Derbyshire
Cumbria
Corn & Scilly
Cheshire
Bucks
Avon
Scotland
Wales
England
SER-FLEXI
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-CHR
Breakdown of
Samples
submitted by
County
Figure 2. Number of samples submitted in each category by County during November 2022
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
Kirkcudbright
Inverness-shire
Ayrshire
Argyll & Bute
W Glamorgan
S Wales
Shropshire
S Glamorgan
Powys
Pembs
NE Wales
Mid Glamorgan
Gwynedd
Gwent
Ceredigion
Carms
W Yorks
W Sussex
Worcs
Wiltshire
Warks
Surrey
Staffs
Somerset excl N
Shropshire
Oxon
N Yorks
N Somer S Glos
Notts
Northumb
Northants
Lincs
Leics & Rut
Lancashire
Kent
I of Wight
Herts
Heref
Hampshire
Gr Manchester
Gloucs
E Sussex
Dorset
Devon
Derbyshire
Cumbria
Corn & Scilly
Cleveland
Cheshire
Cambs
Bucks
Berks
Beds
Avon
Scotland
Wales
England
SER-OTHER
SER-NSR
SER-FLEXI
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 2022
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-PERSIS
1
4
0.03 %
0
0.00 %
3
75.00 %
1
25.00 %
1
25.00 %
0
0.00 %
PAR-RECUR
12
1,324
8.35 %
83
6.27 %
1148
86.71 %
110
8.31 %
92
6.95 %
1
0.08 %
Corn & Scilly
PAR-CUL-P
4
473
2.98 %
11
2.33 %
435
91.97 %
41
8.67 %
27
5.71 %
0
0.00 %
PAR-RECUR
2
20
0.13 %
0
0.00 %
13
65.00 %
0
0.00 %
0
0.00 %
7
35.00 %
Devon
PAR-RECUR
6
692
4.37 %
28
4.05 %
639
92.34 %
27
3.90 %
25
3.61 %
0
0.00 %
Gloucs
PAR-RECUR
3
581
3.67 %
27
4.65 %
512
88.12 %
56
9.64 %
42
7.23 %
0
0.00 %
Heref
PAR-RECUR
4
72
0.45 %
7
9.72 %
51
70.83 %
18
25.00 %
14
19.44 %
0
0.00 %
Shropshire
PAR-PERSIS
1
450
2.84 %
17
3.78 %
408
90.67 %
27
6.00 %
25
5.56 %
0
0.00 %
PAR-RECUR
9
1,511
9.53 %
31
2.05 %
1426
94.37 %
59
3.90 %
54
3.57 %
0
0.00 %
Somerset excl N
PAR-CUL-P
3
1,791
11.30 %
46
2.57 %
1712
95.59 %
50
2.79 %
33
1.84 %
0
0.00 %
PAR-RECUR
3
72
0.45 %
4
5.56 %
65
90.28 %
5
6.94 %
3
4.17 %
0
0.00 %
Staffs
PAR-RECUR
1
7
0.04 %
0
0.00 %
6
85.71 %
1
14.29 %
1
14.29 %
0
0.00 %
Wiltshire
PAR-RECUR
2
277
1.75 %
2
0.72 %
266
96.03 %
12
4.33 %
9
3.25 %
0
0.00 %
England - Edge
Bucks
PAR-CHR
1
241
1.52 %
5
2.07 %
223
92.53 %
15
6.22 %
13
5.39 %
0
0.00 %
PAR-NEW-IN
2
182
1.15 %
9
4.95 %
170
93.41 %
6
3.30 %
3
1.65 %
0
0.00 %
PAR-RECUR
1
20
0.13 %
0
0.00 %
11
55.00 %
9
45.00 %
9
45.00 %
0
0.00 %
Cheshire
PAR-NEW-IN
1
76
0.48 %
4
5.26 %
67
88.16 %
5
6.58 %
5
6.58 %
0
0.00 %
PAR-RECUR
1
81
0.51 %
3
3.70 %
78
96.30 %
0
0.00 %
0
0.00 %
0
0.00 %
Derbyshire
PAR-NEW-IN
1
36
0.23 %
2
5.56 %
27
75.00 %
8
22.22 %
7
19.44 %
0
0.00 %
Hampshire
PAR-NEW-IN
1
130
0.82 %
3
2.31 %
121
93.08 %
6
4.62 %
6
4.62 %
0
0.00 %
Oxon
PAR-RECUR
3
142
0.90 %
4
2.82 %
114
80.28 %
24
xx-xxxx-xxxx %
24
xx-xxxx-xxxx %
0
0.00 %
Warks
PAR-RECUR
1
22
0.14 %
3
13.64 %
17
77.27 %
3
13.64 %
2
9.09 %
0
0.00 %
England - LRA
Cumbria
PAR-NEW-IN
1
159
1.00 %
0
0.00 %
147
92.45 %
13
8.18 %
12
7.55 %
0
0.00 %
Surrey
PAR-NEW-IN
1
142
0.90 %
3
2.11 %
129
90.85 %
11
7.75 %
10
7.04 %
0
0.00 %
England
65
8505
53.67 %
292
3.43 %
7788
91.57 %
507
5.96 %
417
4.90 %
8
0.09 %
Wales - High TB
Carms
PAR-IR-EX
2
8
0.05 %
0
0.00 %
7
87.50 %
1
12.50 %
1
12.50 %
0
0.00 %
Table 2a. Summary by County for November 2022
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 November 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-IR-SEV
3
40
0.25 %
6
15.00 %
32
80.00 %
2
5.00 %
2
5.00 %
0
0.00 %
PAR-OTHER
2
134
0.85 %
16
11.94 %
106
79.10 %
10
7.46 %
9
6.72 %
3
2.24 %
PAR-PERSIS
2
234
1.48 %
3
1.28 %
198
84.62 %
18
7.69 %
13
5.56 %
20
8.55 %
PAR-RECUR
5
46
0.29 %
3
6.52 %
31
67.39 %
11
23.91 %
11
23.91 %
1
2.17 %
SER-FLEXI
7
399
2.52 %
25
6.27 %
360
90.23 %
16
4.01 %
13
3.26 %
1
0.25 %
Ceredigion
PAR-IR-SEV
2
43
0.27 %
13
30.23 %
27
62.79 %
4
9.30 %
3
6.98 %
0
0.00 %
PAR-PERSIS
1
3
0.02 %
0
0.00 %
2
66.67 %
1
33.33 %
1
33.33 %
0
0.00 %
PAR-RAPID
3
4
0.03 %
1
25.00 %
3
75.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
2
492
3.10 %
33
6.71 %
431
87.60 %
37
7.52 %
27
5.49 %
1
0.20 %
Gwent
PAR-IR-SEV
1
5
0.03 %
2
40.00 %
2
40.00 %
2
40.00 %
1
20.00 %
0
0.00 %
PAR-RAPID
2
11
0.07 %
0
0.00 %
10
90.91 %
1
9.09 %
1
9.09 %
0
0.00 %
Pembs
PAR-IR-EX
5
25
0.16 %
9
36.00 %
13
52.00 %
3
12.00 %
3
12.00 %
0
0.00 %
PAR-IR-SEV
15
146
0.92 %
48
32.88 %
92
63.01 %
7
4.79 %
6
4.11 %
0
0.00 %
PAR-OTHER
1
1
0.01 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
8
27
0.17 %
4
14.81 %
21
77.78 %
2
7.41 %
2
7.41 %
0
0.00 %
SER-FLEXI
6
573
3.62 %
25
4.36 %
523
91.27 %
33
5.76 %
22
3.84 %
3
0.52 %
Powys
PAR-IR-EX
3
3
0.02 %
1
33.33 %
1
33.33 %
1
33.33 %
1
33.33 %
0
0.00 %
PAR-IR-SEV
1
3
0.02 %
2
66.67 %
1
33.33 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
2
186
1.17 %
8
4.30 %
164
88.17 %
15
8.06 %
10
5.38 %
4
2.15 %
PAR-RAPID
2
3
0.02 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
3
244
1.54 %
22
9.02 %
170
69.67 %
59
24.18 %
52
21.31 %
0
0.00 %
Wales - Intermediate TB
Carms
PAR-HERD-S
1
21
0.13 %
3
14.29 %
16
76.19 %
3
14.29 %
2
9.52 %
0
0.00 %
PAR-RECUR
2
22
0.14 %
0
0.00 %
17
77.27 %
1
4.55 %
1
4.55 %
4
18.18 %
Ceredigion
PAR-RAPID
1
12
0.08 %
2
16.67 %
10
83.33 %
5
41.67 %
0
0.00 %
0
0.00 %
SER-FLEXI
2
11
0.07 %
1
9.09 %
4
36.36 %
6
54.55 %
6
54.55 %
0
0.00 %
NE Wales
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
4
15
0.09 %
1
6.67 %
13
86.67 %
1
6.67 %
1
6.67 %
0
0.00 %
PAR-NEW-IN
11
399
2.52 %
8
2.01 %
361
90.48 %
34
8.52 %
29
7.27 %
1
0.25 %
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 November 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-POSTM
3
19
0.12 %
3
15.79 %
16
84.21 %
1
5.26 %
0
0.00 %
0
0.00 %
PAR-RAPID
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
2
475
3.00 %
6
1.26 %
413
86.95 %
58
12.21 %
54
11.37 %
2
0.42 %
SER-FLEXI
3
548
3.46 %
36
6.57 %
474
86.50 %
50
9.12 %
32
5.84 %
6
1.09 %
Powys
PAR-NEW-IN
5
1,513
9.55 %
29
1.92 %
1405
92.86 %
82
5.42 %
62
4.10 %
17
1.12 %
Wales - Low TB
Gwynedd
PAR-NEW-IN
4
571
3.60 %
12
2.10 %
532
93.17 %
30
5.25 %
26
4.55 %
1
0.18 %
PAR-OTHER
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
1
148
0.93 %
5
3.38 %
129
87.16 %
21
14.19 %
14
9.46 %
0
0.00 %
PAR-POSTM
2
4
0.03 %
1
25.00 %
3
75.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-IR-SEV
2
15
0.09 %
1
6.67 %
12
80.00 %
2
13.33 %
2
13.33 %
0
0.00 %
PAR-NEW-IN
2
233
1.47 %
5
2.15 %
208
89.27 %
11
4.72 %
9
3.86 %
11
4.72 %
PAR-PERSIS
2
32
0.20 %
7
21.88 %
22
68.75 %
5
15.63 %
3
9.38 %
0
0.00 %
PAR-POSTM
1
5
0.03 %
1
20.00 %
3
60.00 %
1
20.00 %
1
20.00 %
0
0.00 %
SER-FLEXI
1
115
0.73 %
5
4.35 %
106
92.17 %
4
3.48 %
4
3.48 %
0
0.00 %
Wales
130
6794
42.87 %
350
5.15 %
5945
87.50 %
538
7.92 %
424
6.24 %
75
1.10 %
Scotland - Scotland
Ayrshire
PAR-NEW-IN
6
549
3.46 %
31
5.65 %
475
86.52 %
51
9.29 %
41
7.47 %
2
0.36 %
Scotland
6
549
3.46 %
31
5.65 %
475
86.52 %
51
9.29 %
41
7.47 %
2
0.36 %
Grand Total
Sum:
201
15848
673
14208
1096
882
85
*For test criteria please refer to Operational notes.
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N:
new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
England - HRA
Avon
PAR-CHR
4
257
0.13 %
22
8.56 %
212
82.49 %
27
10.51 %
23
8.95 %
0
0.00 %
PAR-CUL-N
3
527
0.26 %
26
4.93 %
485
92.03 %
16
3.04 %
15
2.85 %
1
0.19 %
PAR-CUL-P
2
222
0.11 %
20
9.01 %
173
77.93 %
37
16.67 %
29
13.06 %
0
0.00 %
PAR-NEW-IN
1
77
0.04 %
2
2.60 %
64
83.12 %
16
20.78 %
11
14.29 %
0
0.00 %
PAR-OTHER
2
54
0.03 %
11
20.37 %
35
64.81 %
9
16.67 %
8
14.81 %
0
0.00 %
PAR-PERSIS
3
347
0.17 %
20
5.76 %
304
87.61 %
27
7.78 %
23
6.63 %
0
0.00 %
PAR-RECUR
41
5,765
2.88 %
405
7.03 %
5050
87.60 %
391
6.78 %
300
5.20 %
10
0.17 %
Corn & Scilly
PAR-CHR
2
197
0.10 %
9
4.57 %
166
84.26 %
22
11.17 %
22
11.17 %
0
0.00 %
PAR-CUL-N
7
595
0.30 %
54
9.08 %
520
87.39 %
32
5.38 %
21
3.53 %
0
0.00 %
PAR-CUL-P
11
2,062
1.03 %
60
2.91 %
1864
90.40 %
176
8.54 %
135
6.55 %
3
0.15 %
PAR-OTHER
1
102
0.05 %
1
0.98 %
98
96.08 %
4
3.92 %
3
2.94 %
0
0.00 %
PAR-PERSIS
10
1,862
0.93 %
73
3.92 %
1656
88.94 %
160
8.59 %
133
7.14 %
0
0.00 %
PAR-RECUR
83
12,065
6.02 %
479
3.97 %
10595
87.82 %
1171
9.71 %
978
8.11 %
13
0.11 %
Devon
PAR-CHR
6
496
0.25 %
6
1.21 %
446
89.92 %
51
10.28 %
44
8.87 %
0
0.00 %
PAR-CUL-N
20
1,897
0.95 %
116
6.11 %
1600
84.34 %
198
10.44 %
174
9.17 %
7
0.37 %
PAR-CUL-P
7
1,197
0.60 %
47
3.93 %
1051
87.80 %
114
9.52 %
94
7.85 %
5
0.42 %
PAR-HERD-S
2
288
0.14 %
50
17.36 %
225
78.13 %
27
9.38 %
13
4.51 %
0
0.00 %
PAR-OTHER
1
9
0.00 %
1
11.11 %
7
77.78 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-PERSIS
13
2,145
1.07 %
87
4.06 %
1909
89.00 %
179
8.34 %
146
6.81 %
3
0.14 %
PAR-RECUR
91
12,279
6.13 %
561
4.57 %
10801
87.96 %
1105
9.00 %
901
7.34 %
16
0.13 %
SER-FLEXI
2
145
0.07 %
4
2.76 %
128
88.28 %
11
7.59 %
9
6.21 %
4
2.76 %
Dorset
PAR-CUL-N
5
1,423
0.71 %
58
4.08 %
1279
89.88 %
100
7.03 %
83
5.83 %
3
0.21 %
PAR-OTHER
4
71
0.04 %
1
1.41 %
68
95.77 %
2
2.82 %
2
2.82 %
0
0.00 %
PAR-RECUR
13
1,718
0.86 %
73
4.25 %
1524
88.71 %
147
8.56 %
121
7.04 %
0
0.00 %
SER-FLEXI
2
43
0.02 %
7
16.28 %
34
79.07 %
2
4.65 %
2
4.65 %
0
0.00 %
Gloucs
PAR-CUL-N
7
320
0.16 %
23
7.19 %
247
77.19 %
51
15.94 %
47
14.69 %
3
0.94 %
Table 2b. Summary by County for 2022
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 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-CUL-P
1
195
0.10 %
7
3.59 %
170
87.18 %
17
8.72 %
17
8.72 %
1
0.51 %
PAR-OTHER
2
64
0.03 %
2
3.13 %
56
87.50 %
7
10.94 %
6
9.38 %
0
0.00 %
PAR-RECUR
39
5,640
2.81 %
220
3.90 %
5062
89.75 %
439
7.78 %
353
6.26 %
5
0.09 %
Heref
PAR-CUL-P
2
625
0.31 %
32
5.12 %
570
91.20 %
35
5.60 %
23
3.68 %
0
0.00 %
PAR-HERD-S
2
69
0.03 %
13
18.84 %
48
69.57 %
13
18.84 %
8
11.59 %
0
0.00 %
PAR-OTHER
6
545
0.27 %
32
5.87 %
488
89.54 %
42
7.71 %
25
4.59 %
0
0.00 %
PAR-PERSIS
9
1,132
0.56 %
61
5.39 %
975
86.13 %
104
9.19 %
93
8.22 %
3
0.27 %
PAR-RECUR
65
7,805
3.89 %
274
3.51 %
6953
89.08 %
587
7.52 %
447
5.73 %
131
1.68 %
N Somer S Glos
PAR-RECUR
2
61
0.03 %
2
3.28 %
54
88.52 %
11
18.03 %
5
8.20 %
0
0.00 %
Shropshire
PAR-CHR
6
1,235
0.62 %
45
3.64 %
1125
91.09 %
81
6.56 %
65
5.26 %
0
0.00 %
PAR-NEW-IN
2
293
0.15 %
22
7.51 %
252
86.01 %
27
9.22 %
19
6.48 %
0
0.00 %
PAR-OTHER
3
246
0.12 %
4
1.63 %
221
89.84 %
22
8.94 %
21
8.54 %
0
0.00 %
PAR-PERSIS
18
3,714
1.85 %
143
3.85 %
3348
90.15 %
285
7.67 %
222
5.98 %
1
0.03 %
PAR-RECUR
82
13,644
6.81 %
283
2.07 %
12655
92.75 %
859
6.30 %
700
5.13 %
6
0.04 %
Somerset excl N
PAR-CUL-N
2
529
0.26 %
12
2.27 %
492
93.01 %
29
5.48 %
25
4.73 %
0
0.00 %
PAR-CUL-P
3
1,791
0.89 %
46
2.57 %
1712
95.59 %
50
2.79 %
33
1.84 %
0
0.00 %
PAR-OTHER
3
87
0.04 %
15
17.24 %
65
74.71 %
8
9.20 %
7
8.05 %
0
0.00 %
PAR-PERSIS
5
472
0.24 %
18
3.81 %
427
90.47 %
33
6.99 %
27
5.72 %
0
0.00 %
PAR-RECUR
60
8,667
4.32 %
345
3.98 %
7894
91.08 %
507
5.85 %
382
4.41 %
46
0.53 %
SER-FLEXI
4
64
0.03 %
9
14.06 %
49
76.56 %
7
10.94 %
6
9.38 %
0
0.00 %
Staffs
PAR-CHR
2
436
0.22 %
4
0.92 %
419
96.10 %
19
4.36 %
13
2.98 %
0
0.00 %
PAR-CUL-N
2
263
0.13 %
6
2.28 %
214
81.37 %
43
16.35 %
43
16.35 %
0
0.00 %
PAR-CUL-P
2
426
0.21 %
11
2.58 %
402
94.37 %
17
3.99 %
13
3.05 %
0
0.00 %
PAR-OTHER
5
426
0.21 %
13
3.05 %
396
92.96 %
17
3.99 %
16
3.76 %
1
0.23 %
PAR-PERSIS
5
794
0.40 %
13
1.64 %
482
60.71 %
80
10.08 %
78
9.82 %
221
27.83 %
PAR-RECUR
47
9,961
4.97 %
288
2.89 %
9012
90.47 %
716
7.19 %
583
5.85 %
78
0.78 %
Wiltshire
PAR-CUL-N
4
312
0.16 %
20
6.41 %
267
85.58 %
27
8.65 %
25
8.01 %
0
0.00 %
PAR-CUL-P
4
727
0.36 %
53
7.29 %
609
83.77 %
54
7.43 %
50
6.88 %
15
2.06 %
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 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-NEW-IN
1
19
0.01 %
1
5.26 %
13
68.42 %
5
26.32 %
5
26.32 %
0
0.00 %
PAR-OTHER
4
178
0.09 %
22
12.36 %
137
76.97 %
24
13.48 %
19
10.67 %
0
0.00 %
PAR-PERSIS
2
70
0.03 %
7
10.00 %
46
65.71 %
20
28.57 %
17
24.29 %
0
0.00 %
PAR-RECUR
27
3,703
1.85 %
140
3.78 %
3262
88.09 %
418
11.29 %
299
8.07 %
2
0.05 %
Worcs
PAR-RECUR
8
392
0.20 %
28
7.14 %
324
82.65 %
49
12.50 %
40
10.20 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
2
148
0.07 %
0
0.00 %
95
64.19 %
14
9.46 %
9
6.08 %
44
29.73 %
PAR-RECUR
2
201
0.10 %
3
1.49 %
187
93.03 %
13
6.47 %
11
5.47 %
0
0.00 %
Bucks
PAR-CHR
1
241
0.12 %
5
2.07 %
223
92.53 %
15
6.22 %
13
5.39 %
0
0.00 %
PAR-CUL-N
1
224
0.11 %
10
4.46 %
204
91.07 %
11
4.91 %
10
4.46 %
0
0.00 %
PAR-NEW-IN
14
1,786
0.89 %
39
2.18 %
1656
92.72 %
122
6.83 %
91
5.10 %
0
0.00 %
PAR-RECUR
1
20
0.01 %
0
0.00 %
11
55.00 %
9
45.00 %
9
45.00 %
0
0.00 %
Cheshire
PAR-CUL-N
5
1,323
0.66 %
34
2.57 %
1224
92.52 %
79
5.97 %
65
4.91 %
0
0.00 %
PAR-CUL-P
7
1,426
0.71 %
12
0.84 %
1337
93.76 %
102
7.15 %
77
5.40 %
0
0.00 %
PAR-NEW-IN
5
631
0.31 %
22
3.49 %
566
89.70 %
47
7.45 %
43
6.81 %
0
0.00 %
PAR-OTHER
4
265
0.13 %
26
9.81 %
220
83.02 %
22
8.30 %
18
6.79 %
1
0.38 %
PAR-PERSIS
8
2,341
1.17 %
57
2.43 %
2166
92.52 %
168
7.18 %
115
4.91 %
3
0.13 %
PAR-RECUR
15
4,643
2.32 %
92
1.98 %
4334
93.34 %
261
5.62 %
216
4.65 %
1
0.02 %
Derbyshire
PAR-NEW-IN
8
1,207
0.60 %
23
1.91 %
1088
90.14 %
117
9.69 %
94
7.79 %
2
0.17 %
PAR-RECUR
10
1,832
0.91 %
31
1.69 %
1716
93.67 %
105
5.73 %
79
4.31 %
6
0.33 %
E Sussex
PAR-NEW-IN
7
459
0.23 %
10
2.18 %
394
85.84 %
61
13.29 %
45
9.80 %
10
2.18 %
Hampshire
PAR-CUL-N
2
60
0.03 %
2
3.33 %
46
76.67 %
12
20.00 %
12
20.00 %
0
0.00 %
PAR-NEW-IN
8
800
0.40 %
24
3.00 %
722
90.25 %
58
7.25 %
51
6.38 %
3
0.38 %
Leics & Rut
PAR-CUL-N
2
31
0.02 %
3
9.68 %
27
87.10 %
2
6.45 %
1
3.23 %
0
0.00 %
PAR-CUL-P
1
72
0.04 %
1
1.39 %
59
81.94 %
15
20.83 %
11
15.28 %
1
1.39 %
PAR-NEW-IN
22
2,677
1.34 %
124
4.63 %
2352
87.86 %
229
8.55 %
196
7.32 %
5
0.19 %
Northants
PAR-NEW-IN
17
1,466
0.73 %
28
1.91 %
1268
86.49 %
182
12.41 %
168
11.46 %
2
0.14 %
PAR-RECUR
1
114
0.06 %
1
0.88 %
93
81.58 %
11
9.65 %
20
17.54 %
0
0.00 %
Notts
PAR-CUL-N
2
451
0.23 %
9
2.00 %
422
93.57 %
31
6.87 %
19
4.21 %
1
0.22 %
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 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-NEW-IN
8
780
0.39 %
24
3.08 %
706
90.51 %
63
8.08 %
50
6.41 %
0
0.00 %
Oxon
PAR-NEW-IN
23
3,246
1.62 %
141
4.34 %
2924
90.08 %
223
6.87 %
180
5.55 %
1
0.03 %
PAR-PERSIS
2
160
0.08 %
15
9.38 %
136
85.00 %
9
5.63 %
9
5.63 %
0
0.00 %
PAR-RECUR
9
598
0.30 %
12
2.01 %
512
85.62 %
80
13.38 %
72
12.04 %
2
0.33 %
Warks
PAR-NEW-IN
4
176
0.09 %
13
7.39 %
145
82.39 %
22
12.50 %
18
10.23 %
0
0.00 %
PAR-RECUR
6
534
0.27 %
18
3.37 %
472
88.39 %
52
9.74 %
44
8.24 %
0
0.00 %
England - LRA
Beds
PAR-CUL-N
1
153
0.08 %
1
0.65 %
126
82.35 %
32
20.92 %
24
15.69 %
2
1.31 %
PAR-NEW-IN
2
94
0.05 %
1
1.06 %
89
94.68 %
3
3.19 %
3
3.19 %
1
1.06 %
Cambs
PAR-NEW-IN
2
73
0.04 %
1
1.37 %
67
91.78 %
4
5.48 %
4
5.48 %
1
1.37 %
Cleveland
PAR-NEW-IN
2
45
0.02 %
0
0.00 %
43
95.56 %
3
6.67 %
1
2.22 %
1
2.22 %
Cumbria
PAR-NEW-IN
9
968
0.48 %
9
0.93 %
872
90.08 %
86
8.88 %
68
7.02 %
19
1.96 %
Gr Manchester
PAR-NEW-IN
7
303
0.15 %
2
0.66 %
278
91.75 %
27
8.91 %
23
7.59 %
0
0.00 %
Herts
PAR-NEW-IN
5
253
0.13 %
14
5.53 %
197
77.87 %
41
16.21 %
39
15.42 %
3
1.19 %
I of Wight
PAR-NEW-IN
1
86
0.04 %
1
1.16 %
80
93.02 %
7
8.14 %
5
5.81 %
0
0.00 %
Kent
PAR-NEW-IN
1
63
0.03 %
2
3.17 %
56
88.89 %
5
7.94 %
5
7.94 %
0
0.00 %
Lancashire
PAR-NEW-IN
9
1,783
0.89 %
27
1.51 %
1660
93.10 %
114
6.39 %
92
5.16 %
4
0.22 %
SER-NSR
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Lincs
PAR-NEW-IN
14
1,060
0.53 %
19
1.79 %
971
91.60 %
95
8.96 %
68
6.42 %
2
0.19 %
Northumb
PAR-NEW-IN
1
248
0.12 %
10
4.03 %
208
83.87 %
19
7.66 %
17
6.85 %
13
5.24 %
N Yorks
PAR-NEW-IN
9
831
0.41 %
16
1.93 %
650
78.22 %
75
9.03 %
61
7.34 %
104
12.52 %
Surrey
PAR-NEW-IN
3
453
0.23 %
7
1.55 %
408
90.07 %
48
10.60 %
38
8.39 %
0
0.00 %
W Sussex
PAR-NEW-IN
2
96
0.05 %
7
7.29 %
84
87.50 %
12
12.50 %
5
5.21 %
0
0.00 %
W Yorks
PAR-NEW-IN
6
379
0.19 %
11
2.90 %
332
87.60 %
44
11.61 %
35
9.23 %
1
0.26 %
England
1044
145549
72.62 %
5314
3.65 %
130167
89.43 %
11478
7.89 %
9257
6.36 %
811
0.56 %
Wales - High TB
Carms
PAR-IR-EX
10
39
0.02 %
11
28.21 %
27
69.23 %
1
2.56 %
1
2.56 %
0
0.00 %
PAR-IR-SEV
39
294
0.15 %
90
30.61 %
172
58.50 %
25
8.50 %
19
6.46 %
13
4.42 %
PAR-OTHER
7
145
0.07 %
16
11.03 %
115
79.31 %
12
8.28 %
11
7.59 %
3
2.07 %
PAR-PERSIS
10
1,106
0.55 %
38
3.44 %
991
89.60 %
75
6.78 %
54
4.88 %
23
2.08 %
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 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-RAPID
46
156
0.08 %
41
26.28 %
98
62.82 %
13
8.33 %
11
7.05 %
6
3.85 %
PAR-RECUR
21
2,078
1.04 %
86
4.14 %
1891
91.00 %
138
6.64 %
100
4.81 %
2
0.10 %
SER-FLEXI
31
3,318
1.66 %
202
6.09 %
2936
88.49 %
235
7.08 %
173
5.21 %
7
0.21 %
Ceredigion
PAR-IR-EX
11
31
0.02 %
7
22.58 %
22
70.97 %
1
3.23 %
1
3.23 %
1
3.23 %
PAR-IR-SEV
31
189
0.09 %
41
21.69 %
135
71.43 %
14
7.41 %
11
5.82 %
2
1.06 %
PAR-PERSIS
4
142
0.07 %
4
2.82 %
133
93.66 %
5
3.52 %
5
3.52 %
0
0.00 %
PAR-RAPID
21
44
0.02 %
13
29.55 %
23
52.27 %
5
11.36 %
5
11.36 %
3
6.82 %
PAR-RECUR
2
32
0.02 %
10
31.25 %
21
65.63 %
1
3.13 %
1
3.13 %
0
0.00 %
SER-FLEXI
7
826
0.41 %
42
5.08 %
741
89.71 %
55
6.66 %
42
5.08 %
1
0.12 %
Gwent
PAR-IR-EX
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
16
83
0.04 %
21
25.30 %
58
69.88 %
6
7.23 %
4
4.82 %
0
0.00 %
PAR-OTHER
9
168
0.08 %
7
4.17 %
147
87.50 %
19
11.31 %
14
8.33 %
0
0.00 %
PAR-RAPID
20
54
0.03 %
8
14.81 %
40
74.07 %
8
14.81 %
6
11.11 %
0
0.00 %
PAR-RECUR
13
398
0.20 %
12
3.02 %
359
90.20 %
36
9.05 %
24
6.03 %
3
0.75 %
SER-FLEXI
13
1,328
0.66 %
64
4.82 %
1190
89.61 %
81
6.10 %
70
5.27 %
4
0.30 %
Pembs
PAR-IR-EX
42
190
0.09 %
73
38.42 %
110
57.89 %
10
5.26 %
7
3.68 %
0
0.00 %
PAR-IR-SEV
149
1,056
0.53 %
244
23.11 %
766
72.54 %
47
4.45 %
39
3.69 %
7
0.66 %
PAR-NEW-IN
1
13
0.01 %
0
0.00 %
8
61.54 %
7
53.85 %
5
38.46 %
0
0.00 %
PAR-OTHER
11
196
0.10 %
22
11.22 %
159
81.12 %
15
7.65 %
15
7.65 %
0
0.00 %
PAR-PERSIS
28
1,711
0.85 %
81
4.73 %
1467
85.74 %
203
11.86 %
153
8.94 %
10
0.58 %
PAR-RAPID
124
321
0.16 %
74
23.05 %
231
71.96 %
18
5.61 %
15
4.67 %
1
0.31 %
PAR-RECUR
21
1,748
0.87 %
69
3.95 %
1574
90.05 %
118
6.75 %
96
5.49 %
9
0.51 %
SER-FLEXI
81
8,244
4.11 %
585
7.10 %
7113
86.28 %
635
7.70 %
502
6.09 %
45
0.55 %
Powys
PAR-HERD-S
1
2
0.00 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-EX
18
49
0.02 %
8
16.33 %
39
79.59 %
4
8.16 %
2
4.08 %
0
0.00 %
PAR-IR-SEV
23
83
0.04 %
14
xx-xxxx-xxxx %
56
67.47 %
17
20.48 %
13
15.66 %
0
0.00 %
PAR-OTHER
9
276
0.14 %
18
6.52 %
239
86.59 %
23
8.33 %
19
6.88 %
0
0.00 %
PAR-PERSIS
6
460
0.23 %
10
2.17 %
416
90.43 %
37
8.04 %
30
6.52 %
4
0.87 %
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 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-POSTM
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
38
86
0.04 %
17
19.77 %
61
70.93 %
10
11.63 %
8
9.30 %
0
0.00 %
PAR-RECUR
18
606
0.30 %
16
2.64 %
553
91.25 %
52
8.58 %
36
5.94 %
1
0.17 %
SER-FLEXI
13
881
0.44 %
53
6.02 %
736
83.54 %
110
12.49 %
90
10.22 %
2
0.23 %
S Wales
PAR-IR-SEV
4
20
0.01 %
7
35.00 %
12
60.00 %
2
10.00 %
1
5.00 %
0
0.00 %
PAR-PERSIS
2
18
0.01 %
7
38.89 %
10
55.56 %
1
5.56 %
1
5.56 %
0
0.00 %
PAR-RAPID
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
W Glamorgan
PAR-IR-SEV
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
2
35
0.02 %
8
22.86 %
25
71.43 %
2
5.71 %
2
5.71 %
0
0.00 %
PAR-RAPID
2
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
2
45
0.02 %
4
8.89 %
37
82.22 %
4
8.89 %
4
8.89 %
0
0.00 %
Wales - Intermediate TB
Carms
PAR-HERD-S
1
21
0.01 %
3
14.29 %
16
76.19 %
3
14.29 %
2
9.52 %
0
0.00 %
PAR-IR-SEV
4
17
0.01 %
4
23.53 %
7
41.18 %
2
11.76 %
2
11.76 %
4
23.53 %
PAR-OTHER
3
23
0.01 %
0
0.00 %
15
65.22 %
6
26.09 %
6
26.09 %
2
8.70 %
PAR-PERSIS
3
16
0.01 %
0
0.00 %
14
87.50 %
2
12.50 %
2
12.50 %
0
0.00 %
PAR-RAPID
4
9
0.00 %
2
22.22 %
7
77.78 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
3
38
0.02 %
1
2.63 %
30
78.95 %
3
7.89 %
3
7.89 %
4
10.53 %
SER-FLEXI
2
145
0.07 %
10
6.90 %
127
87.59 %
9
6.21 %
8
5.52 %
0
0.00 %
Ceredigion
PAR-IR-SEV
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-POSTM
1
13
0.01 %
1
7.69 %
11
84.62 %
0
0.00 %
0
0.00 %
1
7.69 %
PAR-RAPID
2
17
0.01 %
5
29.41 %
12
70.59 %
5
29.41 %
0
0.00 %
0
0.00 %
PAR-RECUR
1
3
0.00 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
6
540
0.27 %
17
3.15 %
492
91.11 %
46
8.52 %
29
5.37 %
2
0.37 %
Mid Glamorgan
PAR-RAPID
3
6
0.00 %
1
16.67 %
3
50.00 %
2
33.33 %
2
33.33 %
0
0.00 %
NE Wales
PAR-HERD-S
2
67
0.03 %
3
4.48 %
59
88.06 %
5
7.46 %
5
7.46 %
0
0.00 %
PAR-IR-EX
13
46
0.02 %
7
15.22 %
36
78.26 %
3
6.52 %
3
6.52 %
0
0.00 %
PAR-IR-SEV
35
220
0.11 %
28
12.73 %
184
83.64 %
7
3.18 %
6
2.73 %
2
0.91 %
PAR-NEW-IN
95
8,146
4.06 %
198
2.43 %
7369
90.46 %
720
8.84 %
555
6.81 %
24
0.29 %
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 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-OTHER
4
72
0.04 %
4
5.56 %
58
80.56 %
18
25.00 %
10
13.89 %
0
0.00 %
PAR-PERSIS
14
1,010
0.50 %
40
3.96 %
916
90.69 %
58
5.74 %
52
5.15 %
2
0.20 %
PAR-POSTM
46
177
0.09 %
15
8.47 %
156
88.14 %
9
5.08 %
6
3.39 %
0
0.00 %
PAR-RAPID
28
55
0.03 %
11
20.00 %
44
80.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
2
475
0.24 %
6
1.26 %
413
86.95 %
58
12.21 %
54
11.37 %
2
0.42 %
SER-FLEXI
15
1,267
0.63 %
82
6.47 %
1108
87.45 %
83
6.55 %
61
4.81 %
16
1.26 %
Powys
PAR-IR-EX
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
3
12
0.01 %
2
16.67 %
10
83.33 %
1
8.33 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
26
3,387
1.69 %
109
3.22 %
3043
89.84 %
284
8.39 %
215
6.35 %
20
0.59 %
PAR-OTHER
4
273
0.14 %
8
2.93 %
232
84.98 %
40
14.65 %
33
12.09 %
0
0.00 %
PAR-PERSIS
1
8
0.00 %
0
0.00 %
8
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-POSTM
5
7
0.00 %
0
0.00 %
5
71.43 %
3
42.86 %
2
28.57 %
0
0.00 %
PAR-RAPID
6
11
0.01 %
3
27.27 %
8
72.73 %
0
0.00 %
0
0.00 %
0
0.00 %
S Glamorgan
PAR-OTHER
3
9
0.00 %
3
33.33 %
5
55.56 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-RAPID
9
20
0.01 %
10
50.00 %
10
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
3
115
0.06 %
26
22.61 %
72
62.61 %
21
18.26 %
17
14.78 %
0
0.00 %
Shropshire
PAR-IR-EX
2
5
0.00 %
0
0.00 %
3
60.00 %
2
40.00 %
2
40.00 %
0
0.00 %
PAR-IR-SEV
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
W Glamorgan
PAR-RECUR
2
113
0.06 %
3
2.65 %
101
89.38 %
9
7.96 %
9
7.96 %
0
0.00 %
Wales - Low TB
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-EX
3
11
0.01 %
1
9.09 %
10
90.91 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
63
3,471
1.73 %
110
3.17 %
3005
86.57 %
408
11.75 %
351
10.11 %
5
0.14 %
PAR-OTHER
4
9
0.00 %
0
0.00 %
7
77.78 %
1
11.11 %
1
11.11 %
1
11.11 %
PAR-PERSIS
1
148
0.07 %
5
3.38 %
129
87.16 %
21
14.19 %
14
9.46 %
0
0.00 %
PAR-POSTM
35
115
0.06 %
7
6.09 %
105
91.30 %
5
4.35 %
3
2.61 %
0
0.00 %
PAR-RAPID
3
5
0.00 %
0
0.00 %
5
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-HERD-S
2
40
0.02 %
4
10.00 %
28
70.00 %
8
20.00 %
8
20.00 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid testing of twice IRs, PAR-CUL-N: new
infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s infection/vaccination, SER-NSR: serial non-specific reactor,
SER-FRAUD: serial potential fraud, SER-OTHER: serial other, PAR-CHR: chronic breakdown herds - where VL reactors are disclosed at a 3rd or subsequent SI test, or SLH case after a 2nd or subsequent SI test
* Sufficient plasma supernatant is collected and stored following the overnight culture stage of the assay such that if the sample fails any of the QC criteria, it is
possible for the laboratory to ‘re-test’ the original sample. Depending on the outcome of a retest, a resample (if QC criteria fail to be met), a positive or a negative
result will be reported. Therefore, the total number of samples = the sum of positive, negative, resample and reject samples only.

Table 2b. Summary by County for 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-IR-EX
2
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
2
15
0.01 %
1
6.67 %
12
80.00 %
2
13.33 %
2
13.33 %
0
0.00 %
PAR-NEW-IN
46
3,560
1.78 %
65
1.83 %
3298
92.64 %
250
7.02 %
175
4.92 %
22
0.62 %
PAR-OTHER
5
156
0.08 %
9
5.77 %
131
83.97 %
24
15.38 %
16
10.26 %
0
0.00 %
PAR-PERSIS
3
37
0.02 %
9
24.32 %
25
67.57 %
5
13.51 %
3
8.11 %
0
0.00 %
PAR-POSTM
48
90
0.04 %
6
6.67 %
78
86.67 %
8
8.89 %
5
5.56 %
1
1.11 %
PAR-RAPID
6
13
0.01 %
4
30.77 %
8
61.54 %
2
15.38 %
1
7.69 %
0
0.00 %
PAR-RECUR
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
4
511
0.25 %
45
8.81 %
428
83.76 %
44
8.61 %
38
7.44 %
0
0.00 %
Wales - UNKNOWN
Carms
PAR-IR-SEV
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales
1495
51012
25.45 %
2894
5.67 %
44573
87.38 %
4223
8.28 %
3292
6.45 %
255
0.50 %
Scotland - Scotland
Argyll & Bute
SER-NSR
1
3
0.00 %
0
0.00 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-OTHER
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Ayrshire
PAR-NEW-IN
7
551
0.27 %
32
5.81 %
475
86.21 %
53
9.62 %
42
7.62 %
2
0.36 %
Inverness-shire
PAR-NEW-IN
2
128
0.06 %
2
1.56 %
111
86.72 %
15
11.72 %
15
11.72 %
0
0.00 %
Kirkcudbright
PAR-NEW-IN
4
493
0.25 %
8
1.62 %
432
87.63 %
67
13.59 %
53
10.75 %
0
0.00 %
Wigtown
PAR-NEW-IN
15
2,688
1.34 %
79
2.94 %
2456
91.37 %
187
6.96 %
150
5.58 %
3
0.11 %
Scotland
30
3865
1.93 %
121
3.13 %
3479
90.01 %
322
8.33 %
260
6.73 %
5
0.13 %
Grand Total
Sum:
xx-xxxx-xxxx
8329
178219
16023
12809
1071
*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 November 2022
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
65
8505
100.0%
292
3.4%
7788
91.6%
507
6.0%
417
4.9%
8
0.1%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
65
8505
100.0%
292
3.4%
7788
91.6%
507
6.0%
417
4.9%
8
0.1%
Scotland
Parallel
6
549
100.0%
31
5.6%
475
86.5%
51
9.3%
41
7.5%
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
6
549
100.0%
31
5.6%
475
86.5%
51
9.3%
41
7.5%
2
0.4%
Wales
Parallel
106
4412
64.9%
203
4.6%
3877
87.9%
333
7.5%
268
6.1%
64
1.5%
Serial/Extended
24
2382
35.1%
147
6.2%
2068
86.8%
205
8.6%
156
6.5%
11
0.5%
Total
130
6794
100.0%
350
5.2%
5945
87.5%
538
7.9%
424
6.2%
75
1.1%
GB
Parallel
177
13466
85.0%
526
3.9%
12140
90.2%
891
6.6%
726
5.4%
74
0.5%
Serial/Extended
24
2382
15.0%
147
6.2%
2068
86.8%
205
8.6%
156
6.5%
11
0.5%
Total
201
15848
100.0%
673
4.2%
14208
89.7%
1096
6.9%
882
5.6%
85
0.5%
65.00
130.00
6.00
* 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 2022)
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
1035 145296
99.8%
5294
3.6% 129955
89.4%
11458
7.9%
9240
6.4%
807
0.6%
Serial/Extended
9
253
0.2%
20
7.9%
212
83.8%
20
7.9%
17
6.7%
4
1.6%
Total
1044 145549
100.0%
5314
3.7% 130167
89.4%
11478
7.9%
9257
6.4%
811
0.6%
Scotland
Parallel
28
3860
99.9%
121
3.1%
3474
90.0%
322
8.3%
260
6.7%
5
0.1%
Serial/Extended
2
5
0.1%
0
0.0 %
5 100.0%
0
0.0 %
0
0.0 %
0
0.0 %
Total
30
3865
100.0%
121
3.1%
3479
90.0%
322
8.3%
260
6.7%
5
0.1%
Wales
Parallel
1323
33952
66.6%
1794
5.3%
29702
87.5%
2925
8.6%
2279
6.7%
178
0.5%
Serial/Extended
172
17060
33.4%
1100
6.4%
14871
87.2%
1298
7.6%
1013
5.9%
77
0.5%
Total
1495
51012
100.0%
2894
5.7%
44573
87.4%
4223
8.3%
3292
6.5%
255
0.5%
GB
Parallel
2386 183108
91.4%
7209
3.9% 163131
89.1%
14705
8.0%
11779
6.4%
990
0.5%
Serial/Extended
183
17318
8.6%
1120
6.5%
15088
87.1%
1318
7.6%
1030
5.9%
81
0.5%
Total
xx-xxxx-xxxx
100.0%
8329
4.2% 178219
88.9%
16023
8.0%
12809
6.4%
1071
0.5%
#######
#######
30.00
* 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
24
2382
15.0%
147
6.2%
2068
86.8%
205
8.6 %
156
6.5 %
11
0.5 %
Parallel – chronic breakdown
1
241
1.5%
5
2.1%
223
92.5%
15
6.2 %
13
5.4 %
0
Parallel - Herd or Group Slaughter
1
21
0.1%
3
14.3%
16
76.2%
3
14.3 %
2
9.5 %
0
Parallel - IRs in Exit Strategy for persistent her
11
39
0.2%
11
28.2%
23
59.0%
5
12.8 %
5
12.8 %
0
Parallel New Infection
35
3990
25.2%
106
2.7%
3642
91.3%
257
6.4 %
210
5.3 %
32
0.8 %
Parallel - Other
4
136
0.9%
17
12.5%
107
78.7%
10
7.4 %
9
6.6 %
3
2.2 %
Parallel Persistent Infection
10
1057
6.7%
40
3.8%
926
87.6%
88
8.3 %
67
6.3 %
24
2.3 %
Parallel - persistent infection cull area
7
2264
14.3%
57
2.5%
2147
94.8%
91
4.0 %
60
2.7 %
0
Parallel – post-mvt test coupled with IDEXX an
6
28
0.2%
5
17.9%
22
78.6%
2
7.1 %
1
3.6 %
0
Parallel - Rapid Testing Two-times IRs
17
59
0.4%
8
13.6%
48
81.4%
8
13.6 %
3
5.1 %
0
Parallel - Recurrent breakdowns
57
5364
33.8%
201
3.7%
4807
89.6%
394
7.3 %
341
6.4 %
15
0.3 %
Parallel - severe IRs - in persistent herds
28
267
1.7%
73
27.3%
179
67.0%
18
6.7 %
15
5.6 %
0
Total
201
15848
100.0%
673
4.2%
14208
89.7%
1096
6.9 %
882
5.6 %
85
0.5 %
Table 4a. Summaryof IFN Gamma results by submission reason (November 2022)
England - HRA
Parallel Persistent Infection
2
454
2.9%
17
3.7%
411
90.5%
28
6.2 %
26
5.7 %
0
Parallel - persistent infection cull area
7
2264
14.3%
57
2.5%
2147
94.8%
91
4.0 %
60
2.7 %
0
Parallel - Recurrent breakdowns
42
4556
28.7%
182
4.0%
4126
90.6%
288
6.3 %
240
5.3 %
8
0.2 %
England - HRA
51
7274
45.9%
256
3.5%
6684
91.9%
407
5.6 %
326
4.5 %
8
0.1 %
England - Edge
Parallel – chronic breakdown
1
241
1.5%
5
2.1%
223
92.5%
15
6.2 %
13
5.4 %
0
Parallel New Infection
5
424
2.7%
18
4.2%
385
90.8%
25
5.9 %
21
5.0 %
0
Parallel - Recurrent breakdowns
6
265
1.7%
10
3.8%
220
83.0%
36
13.6 %
35
13.2 %
0
England - Edge
12
930
5.9%
33
3.5%
828
89.0%
76
8.2 %
69
7.4 %
0
England - LRA
Parallel New Infection
2
301
1.9%
3
1.0%
276
91.7%
24
8.0 %
22
7.3 %
0
England - LRA
2
301
1.9%
3
1.0%
276
91.7%
24
8.0 %
22
7.3 %
0
Wales - High TB
Extended Flexible IFN-GAMMA test
18
1708
10.8%
105
6.1%
1484
86.9%
145
8.5 %
114
6.7 %
5
0.3 %
Parallel - IRs in Exit Strategy for persistent her
10
36
0.2%
10
27.8%
21
58.3%
5
13.9 %
5
13.9 %
0
Parallel - Other
3
135
0.9%
17
12.6%
106
78.5%
10
7.4 %
9
6.7 %
3
2.2 %
Parallel Persistent Infection
5
423
2.7%
11
2.6%
364
86.1%
34
8.0 %
24
5.7 %
24
5.7 %
Parallel - Rapid Testing Two-times IRs
15
45
0.3%
6
13.3%
36
80.0%
3
6.7 %
3
6.7 %
0
Parallel - Recurrent breakdowns
5
46
0.3%
3
6.5%
31
67.4%
11
23.9 %
11
23.9 %
1
2.2 %
Parallel - severe IRs - in persistent herds
22
237
1.5%
71
30.0%
154
65.0%
15
6.3 %
12
5.1 %
0
Wales - High TB
78
2630
16.6%
223
8.5%
2196
83.5%
223
8.5 %
178
6.8 %
33
1.3 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
5
559
3.5%
37
6.6%
478
85.5%
56
10.0 %
38
6.8 %
6
1.1 %
Parallel - Herd or Group Slaughter
1
21
0.1%
3
14.3%
16
76.2%
3
14.3 %
2
9.5 %
0
Parallel - IRs in Exit Strategy for persistent her
1
3
0.0%
1
33.3%
2
66.7%
0
0
0
Parallel New Infection
16
1912
12.1%
37
1.9%
1766
92.4%
116
6.1 %
91
4.8 %
18
0.9 %
Parallel – post-mvt test coupled with IDEXX an
3
19
0.1%
3
15.8%
16
84.2%
1
5.3 %
0
0
Parallel - Rapid Testing Two-times IRs
2
14
0.1%
2
14.3%
12
85.7%
5
35.7 %
0
0
Parallel - Recurrent breakdowns
4
497
3.1%
6
1.2%
430
86.5%
59
11.9 %
55
11.1 %
6
1.2 %
Parallel - severe IRs - in persistent herds
4
15
0.1%
1
6.7%
13
86.7%
1
6.7 %
1
6.7 %
0
Wales - Intermediate TB
36
3040
19.2%
90
3.0%
2733
89.9%
241
7.9 %
187
6.2 %
30
1.0 %
Wales - Low TB
Extended Flexible IFN-GAMMA test
1
115
0.7%
5
4.3%
106
92.2%
4
3.5 %
4
3.5 %
0
Parallel New Infection
6
804
5.1%
17
2.1%
740
92.0%
41
5.1 %
35
4.4 %
12
1.5 %
Parallel - Other
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Parallel Persistent Infection
3
180
1.1%
12
6.7%
151
83.9%
26
14.4 %
17
9.4 %
0
Parallel – post-mvt test coupled with IDEXX an
3
9
0.1%
2
22.2%
6
66.7%
1
11.1 %
1
11.1 %
0
Parallel - severe IRs - in persistent herds
2
15
0.1%
1
6.7%
12
80.0%
2
13.3 %
2
13.3 %
0
Wales - Low TB
16
1124
7.1%
37
3.3%
1016
90.4%
74
6.6 %
59
5.2 %
12
1.1 %
Scotland - Scotland
Parallel New Infection
6
549
3.5%
31
5.6%
475
86.5%
51
9.3 %
41
7.5 %
2
0.4 %
Scotland - Scotland
6
549
3.5%
31
5.6%
475
86.5%
51
9.3 %
41
7.5 %
2
0.4 %

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
180
17312
8.6%
1120
6.5%
15082
87.1%
1318
7.6 %
1030
5.9 %
81
0.5 %
Parallel – chronic breakdown
21
2862
1.4%
91
3.2%
2591
90.5%
215
7.5 %
180
6.3 %
0
Parallel - Herd or Group Slaughter
11
488
0.2%
74
15.2%
378
77.5%
56
11.5 %
36
7.4 %
0
Parallel - IRs in Exit Strategy for persistent herds
103
375
0.2%
107
28.5%
251
66.9%
21
5.6 %
16
4.3 %
1
0.3 %
Parallel New Infection
454
42937
21.4%
1203
2.8%
38437
89.5%
3760
8.8 %
3005
7.0 %
292
0.7 %
Parallel - new infection cull area
63
8108
4.0%
374
4.6%
7153
88.2%
663
8.2 %
564
7.0 %
17
0.2 %
Parallel - Other
96
3409
1.7%
223
6.5%
2924
85.8%
319
9.4 %
254
7.5 %
8
0.2 %
Parallel Persistent Infection
147
17693
8.8%
688
3.9%
15558
87.9%
1472
8.3 %
1177
6.7 %
270
1.5 %
Parallel - persistent infection cull area
40
8743
4.4%
289
3.3%
7947
90.9%
617
7.1 %
482
5.5 %
25
0.3 %
Parallel – post-mvt test coupled with IDEXX anti
136
404
0.2%
29
7.2%
357
88.4%
25
6.2 %
16
4.0 %
2
0.5 %
Parallel - Rapid Testing Two-times IRs
313
800
0.4%
190
23.8%
552
69.0%
63
7.9 %
48
6.0 %
10
1.3 %
Parallel - Recurrent breakdowns
691
95294
47.5%
3489
3.7%
85565
89.8%
7371
7.7 %
5904
6.2 %
337
0.4 %
Parallel - severe IRs - in persistent herds
311
1995
1.0%
452
22.7%
1418
71.1%
123
6.2 %
97
4.9 %
28
1.4 %
Serial - Other
1
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Serial - Suspected NSR Herd
2
4
0.0%
0
0.0 %
4
100.0%
0
0
0
Total
xx-xxxx-xxxx
100.0%
8329
4.2%
178219
88.9%
16023
8.0 %
12809
6.4 %
1071
0.5 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2022)
England - HRA
Extended Flexible IFN-GAMMA test
8
252
0.1%
20
7.9%
211
83.7%
20
7.9 %
17
6.7 %
4
1.6 %
Parallel – chronic breakdown
20
2621
1.3%
86
3.3%
2368
90.3%
200
7.6 %
167
6.4 %
0
Parallel - Herd or Group Slaughter
4
357
0.2%
63
17.6%
273
76.5%
40
11.2 %
21
5.9 %
0
Parallel New Infection
4
389
0.2%
25
6.4%
329
84.6%
48
12.3 %
35
9.0 %
0
Parallel - new infection cull area
50
5866
2.9%
315
5.4%
5104
87.0%
496
8.5 %
433
7.4 %
14
0.2 %
Parallel - Other
31
1782
0.9%
102
5.7%
1571
88.2%
136
7.6 %
108
6.1 %
1
0.1 %
Parallel Persistent Infection
65
10536
5.3%
422
4.0%
9147
86.8%
888
8.4 %
739
7.0 %
228
2.2 %
Parallel - persistent infection cull area
32
7245
3.6%
276
3.8%
6551
90.4%
500
6.9 %
394
5.4 %
24
0.3 %
Parallel - Recurrent breakdowns
558
81700
40.8%
3098
3.8%
73186
89.6%
6400
7.8 %
5109
6.3 %
307
0.4 %
England - Edge
Parallel – chronic breakdown
1
241
0.1%
5
2.1%
223
92.5%
15
6.2 %
13
5.4 %
0
Parallel New Infection
118
13376
6.7%
448
3.3%
11916
89.1%
1138
8.5 %
945
7.1 %
67
0.5 %

Table 4b. Summary of IFN Gamma results by submission reason (Total 2022) Cont.
Parallel - new infection cull area
12
2089
1.0%
58
2.8%
1923
92.1%
135
6.5 %
107
5.1 %
1
0.0 %
Parallel - Other
4
265
0.1%
26
9.8%
220
83.0%
22
8.3 %
18
6.8 %
1
0.4 %
Parallel Persistent Infection
10
2501
1.2%
72
2.9%
2302
92.0%
177
7.1 %
124
5.0 %
3
0.1 %
Parallel - persistent infection cull area
8
1498
0.7%
13
0.9%
1396
93.2%
117
7.8 %
88
5.9 %
1
0.1 %
Parallel - Recurrent breakdowns
44
7942
4.0%
157
2.0%
7325
92.2%
531
6.7 %
451
5.7 %
9
0.1 %
England - LRA
Parallel New Infection
73
6735
3.4%
127
1.9%
5995
89.0%
583
8.7 %
464
6.9 %
149
2.2 %
Parallel - new infection cull area
1
153
0.1%
1
0.7%
126
82.4%
32
20.9 %
24
15.7 %
2
1.3 %
Serial - Suspected NSR Herd
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
England
1044 145549
72.6%
5314
3.7%
130167
89.4%
11478
7.9 %
9257
6.4 %
811
0.6 %
Wales - High TB
Extended Flexible IFN-GAMMA test
145
14597
7.3%
946
6.5%
12716
87.1%
1116
7.6 %
877
6.0 %
59
0.4 %
Parallel - Herd or Group Slaughter
1
2
0.0%
1
50.0%
1
50.0%
0
0
0
Parallel - IRs in Exit Strategy for persistent herd
82
310
0.2%
99
31.9%
199
64.2%
16
5.2 %
11
3.5 %
1
0.3 %
Parallel New Infection
1
13
0.0%
0
0.0 %
8
61.5%
7
53.8 %
5
38.5 %
0
Parallel - Other
38
820
0.4%
71
8.7%
685
83.5%
71
8.7 %
61
7.4 %
3
0.4 %
Parallel Persistent Infection
50
3437
1.7%
140
4.1%
3017
87.8%
321
9.3 %
243
7.1 %
37
1.1 %
Parallel – post-mvt test coupled with IDEXX ant
1
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Parallel - Rapid Testing Two-times IRs
252
664
0.3%
154
23.2%
455
68.5%
54
8.1 %
45
6.8 %
10
1.5 %
Parallel - Recurrent breakdowns
77
4907
2.4%
197
4.0%
4435
90.4%
349
7.1 %
261
5.3 %
15
0.3 %
Parallel - severe IRs - in persistent herds
263
1727
0.9%
417
24.1%
1201
69.5%
111
6.4 %
87
5.0 %
22
1.3 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
23
1952
1.0%
109
5.6%
1727
88.5%
138
7.1 %
98
5.0 %
18
0.9 %
Parallel - Herd or Group Slaughter
3
88
0.0%
6
6.8%
75
85.2%
8
9.1 %
7
8.0 %
0
Parallel - IRs in Exit Strategy for persistent herd
16
52
0.0%
7
13.5%
40
76.9%
5
9.6 %
5
9.6 %
0
Parallel New Infection
121
11533
5.8%
307
2.7%
10412
90.3%
1004
8.7 %
770
6.7 %
44
0.4 %
Parallel - Other
14
377
0.2%
15
4.0%
310
82.2%
65
17.2 %
50
13.3 %
2
0.5 %
Parallel Persistent Infection
18
1034
0.5%
40
3.9%
938
90.7%
60
5.8 %
54
5.2 %
2
0.2 %
Parallel – post-mvt test coupled with IDEXX ant
52
197
0.1%
16
8.1%
172
87.3%
12
6.1 %
8
4.1 %
1
0.5 %
Parallel - Rapid Testing Two-times IRs
52
118
0.1%
32
27.1%
84
71.2%
7
5.9 %
2
1.7 %
0
Parallel - Recurrent breakdowns
11
744
0.4%
36
4.8%
619
83.2%
91
12.2 %
83
11.2 %
6
0.8 %
Parallel - severe IRs - in persistent herds
44
251
0.1%
34
13.5%
203
80.9%
10
4.0 %
8
3.2 %
6
2.4 %
Wales - Low TB
Extended Flexible IFN-GAMMA test
4
511
0.3%
45
8.8%
428
83.8%
44
8.6 %
38
7.4 %
0
Parallel - Herd or Group Slaughter
3
41
0.0%
4
9.8%
29
70.7%
8
19.5 %
8
19.5 %
0
Parallel - IRs in Exit Strategy for persistent herd
5
13
0.0%
1
7.7%
12
92.3%
0
0
0
Parallel New Infection
109
7031
3.5%
175
2.5%
6303
89.6%
658
9.4 %
526
7.5 %
27
0.4 %

Table 4b. Summary of IFN Gamma results by submission reason (Total 2022) Cont.
Parallel - Other
9
165
0.1%
9
5.5%
138
83.6%
25
15.2 %
17
10.3 %
1
0.6 %
Parallel Persistent Infection
4
185
0.1%
14
7.6%
154
83.2%
26
14.1 %
17
9.2 %
0
Parallel – post-mvt test coupled with IDEXX ant
83
205
0.1%
13
6.3%
183
89.3%
13
6.3 %
8
3.9 %
1
0.5 %
Parallel - Rapid Testing Two-times IRs
9
18
0.0%
4
22.2%
13
72.2%
2
11.1 %
1
5.6 %
0
Parallel - Recurrent breakdowns
1
1
0.0%
1
100.0%
0
0.0 %
0
0
0
Parallel - severe IRs - in persistent herds
3
16
0.0%
1
6.3%
13
81.3%
2
12.5 %
2
12.5 %
0
Wales - UNKNOWN
Parallel - severe IRs - in persistent herds
1
1
0.0%
0
0.0 %
1
100.0%
0
0
0
Wales
1495
51012
25.5%
2894
5.7%
44573
87.4%
4223
8.3 %
3292
6.5 %
255
0.5 %
Scotland - Scotland
Parallel New Infection
28
3860
1.9%
121
3.1%
3474
90.0%
322
8.3 %
260
6.7 %
5
0.1 %
Serial - Other
1
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Serial - Suspected NSR Herd
1
3
0.0%
0
0.0 %
3
100.0%
0
0
0
Scotland
30
3865
1.9%
121
3.1%
3479
90.0%
322
8.3 %
260
6.7 %
5
0.1 %

Year
Month
Herds
sampled
Samples
tested
Herds
with
positives
IFNg+
samples
Wrong
Eartags
No PM
No
Cult
No PM
Cult
Pend
No PM
Cult
Neg
No PM
Cult
Mb
No
PM
Cult
Other
VL No
Cult
VL
Cult
Neg
VL
Cult
Pend
VL
Cult
Mb
VL
Cult
Other
NVL
No
Cult
NVL
Cult
Pend
NVL
Cult
Neg
NVL
Cult
Mb
NVL
Cult
Other
2021 December
238
13117
138
759
14
0
0
0
0
42
5
0
1
2
656
0
38
0
0
2022 January
262
18563
129
852
19
0
0
0
0
32
1
0
17
0
745
1
36
0
0
February
229
18198
132
966
1
19
0
0
0
0
84
3
0
3
0
765
0
91
0
0
March
268
23046
165
1108
35
0
0
0
0
60
4
0
14
0
929
0
65
1
0
April
220
15067
130
687
9
0
0
0
0
50
2
0
11
0
563
0
52
0
0
May
269
23949
158
918
2
19
0
0
0
0
62
3
0
9
0
778
0
44
1
0
June
213
17755
114
590
19
0
0
0
0
48
1
0
2
0
460
1
57
2
0
July
248
15402
109
485
5
0
0
0
0
46
1
2
3
0
381
1
46
0
0
August
274
19758
144
758
12
0
0
0
0
36
0
0
14
3
642
2
46
0
2
September
205
xx-xxxx-xxxx
107
672
13
0
0
0
0
100
0
1
7
0
519
14
17
0
0
October
180
xx-xxxx-xxxx
100
620
37
0
0
0
0
67
0
16
3
0
471
26
0
0
0
November
201
15848
120
673
269
166
0
0
0
0
20
0
0
0
0
53
0
0
0
0
Totals (last
12 months)
2807
213543
1546
9088
272
367
0
0
0
0
647
20
19
84
5
6962
45
492
4
2
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
1148
155990
767
5841
250
0
0
0
0
615
9
7
24
2
4786
0
5
0
0
Scotland
30
3865
20
121
1
0
0
0
0
3
0
1
0
1
83
0
1
0
0
Wales
1629
53688
759
3126
116
0
0
0
0
29
11
11
60
2
2093
45
486
4
2
Totals
2807
213543
1546
9088
367
0
0
0
0
647
20
19
84
5
6962
45
492
4
2
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.
116
227
131
192
115
147
88
96
100
127
95
149
152
180
117
173
145
175
127
189
147
200
138
186
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
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
November
2020
2021
2022
IFNg Positive herds
IFNg Negative herds
29262
1367
31244
1289
17118
764
10415
408
xx-xxxx-xxxx
858
22130
860
21221
1153
23461
888
24351
762
25236
1198
24710
1359
22625
1228
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
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
November
2020
2021
2022
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
November
2020
2021
2022
%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
5
10
15
20
25
30
35
40
45
Wiltshire
Warks
Surrey
Staffs
Somerset excl N
Shropshire
Powys
Pembs
Oxon
NE Wales
Heref
Hampshire
Gwynedd
Gwent
Gloucs
Devon
Derbyshire
Cumbria
Corn & Scilly
Cheshire
Ceredigion
Carms
Bucks
Ayrshire
Avon
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during November 2022 (% submission per
County)
County
%Resampled %Retested
Avon
7.00 %
8.36 %
Ayrshire
7.47 %
9.29 %
Bucks
5.64 %
6.77 %
Carms
5.75 %
6.86 %
Ceredigion
6.55 %
9.38 %
Cheshire
3.18 %
3.18 %
Corn & Scilly
5.48 %
8.32 %
Cumbria
7.55 %
8.18 %
Derbyshire
19.44 %
22.22 %
Devon
3.61 %
3.90 %
Gloucs
7.23 %
9.64 %
Gwent
12.50 %
18.75 %
Gwynedd
5.52 %
7.04 %
Hampshire
4.62 %
4.62 %
Heref
19.44 %
25.00 %
NE Wales
7.25 %
8.97 %
Oxon
xx-xxxx-xxxx %
xx-xxxx-xxxx %
Pembs
4.27 %
5.83 %
Powys
6.40 %
8.04 %
Shropshire
4.03 %
4.39 %
Somerset excl
1.93 %
2.95 %
Staffs
14.29 %
14.29 %
Surrey
7.04 %
7.75 %
Warks
9.09 %
13.64 %
Wiltshire
3.25 %
4.33 %

Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
8417
292
3.5%
8505
292
3.4%
Wales
6726
350
5.2%
6794
350
5.2%
Scotland
549
31
5.6%
549
31
5.6%
GB
15692
673
4.3%
15848
673
4.2%
Table 6a (i): Number of animals and submissions tested in November 2022
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
136034
5314
3.9%
145549
5314
3.7%
Wales
47674
2894
6.1%
51012
2894
5.7%
Scotland
3701
121
3.3%
3865
121
3.1%
GB
187407
8329
4.4%
200426
8329
4.2%
Table 6b (i): Number of animals and submissions tested in 2022 Up to end of November
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
20320
953
4.7%
20481
953
4.7%
Wales
4311
382
8.9%
4399
382
8.7%
Scotland
807
14
1.7%
857
14
1.6%
GB
25438
1349
5.3%
25737
1349
5.2%
Table 6a (ii): Number of animals and submissions tested in November 2021
Table 6b (ii): Number of animals and submissions tested in 2021 Up to end of November
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
201858
10808
5.4%
217128
10811
5.0%
Wales
56823
3686
6.5%
61103
3687
6.0%
Scotland
1386
150
10.8%
2023
150
7.4%
GB
260057
14644
5.6%
280254
14648
5.2%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Leicestershire and Rutland
PRV-SP
1
1
0
0
Total
1
1
0
*SER-IOM: Serial High Specificity test – Isle of Man; PRV-SE: Private High Sensitivity test - England;
PRV-SP: Private High Specificity test – England
Table 7a Number of private samples November 2022
Table 7b Number of private samples 2022
* Test type
Num
Submissions
Num
Samples
Num
Positives
Private
% Positive
Devon
PRV-SE
4
109
5
4.59 %
PRV-SP
1
2
0
0
Dorset
PRV-SP
2
3
0
0
East Sussex
PRV-SP
1
3
0
0
Gloucestershire
PRV-SP
2
4
0
0
Hampshire
PRV-SE
1
7
2
28.57 %
Herefordshire
PRV-SP
1
1
0
0
Leicestershire and Rutland
PRV-SP
7
7
0
0
Somerset excl North
PRV-SE
1
5
0
0
PRV-SP
3
17
1
5.88 %
Wiltshire
PRV-SE
4
67
9
13.43 %
Total
27
225
17
7.56 %

Country
County
Test Reason
Num
Submissions
Num Samples
Tested
Num Positive
Samples
% Positive
Wales
Carmarthenshire
BOV-IR-C
4
65
17
26.2%
BOV-IR-EX
1
8
2
25.0%
BOV-OTHER
1
10
0
0
OTHER
1
82
1
1.2%
Ceredigion
BOV-IR-C
2
48
6
12.5%
BOV-OTHER
2
111
4
3.6%
North East Wales
BOV-IR-C
4
22
3
13.6%
BOV-P
2
207
8
3.9%
BOV-POSTM
4
21
3
14.3%
North West Wales
BOV-POSTM
2
2
1
50.0%
Pembrokeshire
BOV-IR-C
9
115
12
10.4%
BOV-IR-EX
2
20
7
35.0%
BOV-OTHER
2
253
7
2.8%
BOV-P
1
191
6
3.1%
Powys
BOV-IR-C
1
3
2
66.7%
BOV-IR-EX
2
2
0
0
South Wales
BOV-IR-C
1
5
2
40.0%
Wales
41
1,165
81
7.0%
All GB
41
1,165
81
7.0 %
Table 8a Number of Cattle Antibody Tests November 2022
Table 8b Number of Cattle Antibody Tests 2022
Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
Wales
Carmarthenshire
BOV-IR-C
35
351
92
26.2%
BOV-IR-EX
5
30
4
13.3%
BOV-OTHER
5
706
14
2.0%
BOV-P
2
105
2
1.9%
OTHER
1
82
1
1.2%
Ceredigion
BOV-IR-C
28
254
40
15.7%
BOV-IR-EX
5
17
3
17.6%
BOV-OTHER
2
111
4
3.6%
BOV-P
2
62
6
9.7%
BOV-POSTM
1
13
4
30.8%
North East Wales
BOV-IR-C
40
322
33
10.2%
BOV-IR-EX
2
14
4
28.6%
BOV-OTHER
5
209
0
0
BOV-P
5
867
61
7.0%
BOV-POSTM
74
190
36
18.9%
North West Wales
BOV-POSTM
5
5
1
20.0%
Pembrokeshire
BOV-IR-C
141
1,240
247
19.9%
BOV-IR-EX
25
159
46
28.9%
BOV-OTHER
18
1,888
89
4.7%
BOV-P
11
820
39
4.8%
OTHER
1
30
0
0
Powys
BOV-IR-C
23
176
26
14.8%

Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
BOV-IR-EX
5
22
6
27.3%
BOV-P
4
206
5
2.4%
BOV-POSTM
2
2
0
0
Shropshire
BOV-IR-C
1
1
0
0
South Wales
BOV-IR-C
19
159
28
17.6%
BOV-OTHER
3
143
8
5.6%
BOV-P
1
282
16
5.7%
Wales
471
8,466
815
9.6%
All GB
471
8,466
815
9.6 %