Monthly report: Surveillance Project SB4008 IFNg Tests for Bovine Tuberculosis - May 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 189
Report Period 1st - 31st May 2022
Issued 17 June 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
May 2022
%
Total 2022
%
Submissions
269
1248
Samples
Total (%)
23949
100.00 %
98823
100.00 %
England
19002
79.34 %
77598
78.52 %
Wales
4430
18.50 %
20231
20.47 %
Scotland
517
2.16 %
994
1.01 %
Parallel Tests
PAR-CHR
1296
5.41 %
2006
2.03 %
PAR-CUL-N
529
2.21 %
7320
7.41 %
PAR-CUL-P
625
2.61 %
4158
4.21 %
PAR-HERD-S
0
0.00 %
40
0.04 %
PAR-IR-EX
30
0.13 %
164
0.17 %
PAR-IR-SEV
164
0.68 %
837
0.85 %
PAR-NEW-IN
4838
20.20 %
19292
19.52 %
PAR-OTHER
287
1.20 %
1984
2.01 %
PAR-PERSIS
1195
4.99 %
11268
11.40 %
PAR-POSTM
62
0.26 %
252
0.26 %
PAR-RAPID
135
0.56 %
458
0.46 %
PAR-RECUR
12865
53.72 %
43100
43.61 %
Total(% of all samples)
22026
91.97 %
90879
91.96 %
Serial/Extended Tests
SER-ANOM
0
0.00 %
SER-FLEXI
1923
8.03 %
7938
8.03 %
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)
1923
8.03 %
7944
8.04 %
Total
23949
100.00 %
98823
100.00 %
Retests
Total (% of all samples)
1613
6.74 %
7918
8.01 %
England
1221
5.10 %
6143
6.22 %
Wales
320
1.34 %
1671
1.69 %
Scotland
72
0.30 %
104
0.11 %
Resamples
Total (% of all samples)
1280
5.34 %
6651
6.73 %
England
987
4.12 %
5189
5.25 %
Wales
235
0.98 %
1379
1.40 %
Scotland
58
0.24 %
83
0.08 %
Rejects
Total (% of all samples)
42
0.18 %
670
0.68 %
England
21
0.09 %
533
0.54 %
Wales
21
0.09 %
137
0.14 %
Scotland
0
0.00 %
Table 1. Monthly Totals for May 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-N
PAR-CUL-P
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
1296
5.4 %
PAR-CUL-N
529
2.2 %
PAR-CUL-P
625
2.6 %
PAR-IR-EX
30
0.1 %
PAR-IR-SEV
164
0.7 %
PAR-NEW-IN
4838
20.2 %
PAR-OTHER
287
1.2 %
PAR-PERSIS
1195
5.0 %
PAR-POSTM
62
0.3 %
PAR-RAPID
135
0.6 %
PAR-RECUR
12865
53.7 %
SER-FLEXI
1923
8.0 %
Total
23949
100.00 %
Figure 1. Number of samples submitted in each category during May 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
500
1000
1500
2000
2500
3000
3500
4000
Wigtown
Kirkcudbright
W Glamorgan
S Glamorgan
Powys
Pembs
NE Wales
Mid Glamorgan
Gwynedd
Gwent
Ceredigion
Carms
Worcs
Wiltshire
Warks
Staffs
Somerset excl N
Shropshire
Oxon
Notts
Northants
Lincs
Leics & Rut
Lancashire
I of Wight
Heref
Hampshire
Gloucs
E Sussex
Dorset
Devon
Derbyshire
Cumbria
Corn & Scilly
Cheshire
Cambs
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-CUL-P
PAR-CUL-N
PAR-CHR
Breakdown of
Samples
submitted by
County
Figure 2. Number of samples submitted in each category by County during May 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
Wigtown
Kirkcudbright
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
Staffs
Somerset excl N
Shropshire
Oxon
N Yorks
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
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
16
0.07 %
0
0.00 %
10
62.50 %
6
37.50 %
6
37.50 %
0
0.00 %
PAR-RECUR
2
144
0.60 %
8
5.56 %
129
89.58 %
7
4.86 %
7
4.86 %
0
0.00 %
Corn & Scilly
PAR-CHR
1
178
0.74 %
8
4.49 %
151
84.83 %
19
10.67 %
19
10.67 %
0
0.00 %
PAR-PERSIS
2
179
0.75 %
0
0.00 %
165
92.18 %
23
12.85 %
14
7.82 %
0
0.00 %
PAR-RECUR
9
1,803
7.53 %
85
4.71 %
1628
90.29 %
108
5.99 %
88
4.88 %
2
0.11 %
Devon
PAR-CHR
1
51
0.21 %
0
0.00 %
47
92.16 %
6
11.76 %
4
7.84 %
0
0.00 %
PAR-PERSIS
3
774
3.23 %
20
2.58 %
701
90.57 %
59
7.62 %
53
6.85 %
0
0.00 %
PAR-RECUR
4
1,078
4.50 %
35
3.25 %
998
92.58 %
55
5.10 %
44
4.08 %
1
0.09 %
SER-FLEXI
1
133
0.56 %
3
2.26 %
118
88.72 %
10
7.52 %
8
6.02 %
4
3.01 %
Dorset
PAR-OTHER
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Gloucs
PAR-RECUR
5
474
1.98 %
43
9.07 %
399
84.18 %
36
7.59 %
29
6.12 %
3
0.63 %
Heref
PAR-CUL-P
2
625
2.61 %
32
5.12 %
570
91.20 %
35
5.60 %
23
3.68 %
0
0.00 %
PAR-OTHER
2
33
0.14 %
3
9.09 %
26
78.79 %
7
21.21 %
4
12.12 %
0
0.00 %
PAR-PERSIS
1
2
0.01 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
7
1,157
4.83 %
65
5.62 %
1025
88.59 %
82
7.09 %
67
5.79 %
0
0.00 %
Shropshire
PAR-CHR
3
631
2.63 %
38
6.02 %
565
89.54 %
39
6.18 %
28
4.44 %
0
0.00 %
PAR-NEW-IN
1
13
0.05 %
1
7.69 %
7
53.85 %
6
46.15 %
5
38.46 %
0
0.00 %
PAR-PERSIS
2
57
0.24 %
3
5.26 %
45
78.95 %
12
21.05 %
9
15.79 %
0
0.00 %
PAR-RECUR
5
1,127
4.71 %
21
1.86 %
1052
93.35 %
65
5.77 %
54
4.79 %
0
0.00 %
Somerset excl N
PAR-CUL-N
2
529
2.21 %
12
2.27 %
492
93.01 %
29
5.48 %
25
4.73 %
0
0.00 %
PAR-RECUR
7
1,240
5.18 %
48
3.87 %
1150
92.74 %
55
4.44 %
40
3.23 %
2
0.16 %
Staffs
PAR-CHR
2
436
1.82 %
4
0.92 %
419
96.10 %
19
4.36 %
13
2.98 %
0
0.00 %
Wiltshire
PAR-RECUR
3
600
2.51 %
30
5.00 %
536
89.33 %
48
8.00 %
34
5.67 %
0
0.00 %
Worcs
PAR-RECUR
5
337
1.41 %
20
5.93 %
289
85.76 %
37
10.98 %
28
8.31 %
0
0.00 %
England - Edge
Bucks
PAR-NEW-IN
2
623
2.60 %
18
2.89 %
571
91.65 %
39
6.26 %
34
5.46 %
0
0.00 %
Cheshire
PAR-OTHER
2
86
0.36 %
3
3.49 %
75
87.21 %
9
10.47 %
8
9.30 %
0
0.00 %
Table 2a. Summary by County for May 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 May 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-RECUR
6
3,679
15.36 %
72
1.96 %
3472
94.37 %
167
4.54 %
134
3.64 %
1
0.03 %
Derbyshire
PAR-RECUR
1
316
1.32 %
9
2.85 %
281
88.92 %
29
9.18 %
21
6.65 %
5
1.58 %
E Sussex
PAR-NEW-IN
2
147
0.61 %
3
2.04 %
135
91.84 %
11
7.48 %
9
6.12 %
0
0.00 %
Hampshire
PAR-NEW-IN
1
33
0.14 %
1
3.03 %
25
75.76 %
7
21.21 %
7
21.21 %
0
0.00 %
Leics & Rut
PAR-NEW-IN
7
700
2.92 %
34
4.86 %
601
85.86 %
68
9.71 %
65
9.29 %
0
0.00 %
Northants
PAR-NEW-IN
2
46
0.19 %
1
2.17 %
42
91.30 %
4
8.70 %
3
6.52 %
0
0.00 %
Notts
PAR-NEW-IN
2
322
1.34 %
11
3.42 %
288
89.44 %
29
9.01 %
23
7.14 %
0
0.00 %
Oxon
PAR-NEW-IN
2
279
1.16 %
16
5.73 %
256
91.76 %
9
3.23 %
7
2.51 %
0
0.00 %
PAR-RECUR
1
124
0.52 %
4
3.23 %
110
88.71 %
11
8.87 %
10
8.06 %
0
0.00 %
Warks
PAR-RECUR
1
52
0.22 %
0
0.00 %
49
94.23 %
4
7.69 %
3
5.77 %
0
0.00 %
England - LRA
Cambs
PAR-NEW-IN
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Cumbria
PAR-NEW-IN
1
144
0.60 %
1
0.69 %
133
92.36 %
11
7.64 %
10
6.94 %
0
0.00 %
I of Wight
PAR-NEW-IN
1
86
0.36 %
1
1.16 %
80
93.02 %
7
8.14 %
5
5.81 %
0
0.00 %
Lancashire
PAR-NEW-IN
3
566
2.36 %
11
1.94 %
516
91.17 %
41
7.24 %
36
6.36 %
3
0.53 %
Lincs
PAR-NEW-IN
5
180
0.75 %
4
2.22 %
166
92.22 %
12
6.67 %
10
5.56 %
0
0.00 %
England
112
19002
79.34 %
668
3.52 %
17326
91.18 %
1221
6.43 %
987
5.19 %
21
0.11 %
Wales - High TB
Carms
PAR-IR-EX
2
8
0.03 %
2
25.00 %
6
75.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
2
15
0.06 %
2
13.33 %
11
73.33 %
5
33.33 %
2
13.33 %
0
0.00 %
PAR-RAPID
7
47
0.20 %
16
34.04 %
26
55.32 %
6
12.77 %
5
10.64 %
0
0.00 %
PAR-RECUR
1
332
1.39 %
16
4.82 %
310
93.37 %
9
2.71 %
6
1.81 %
0
0.00 %
SER-FLEXI
1
5
0.02 %
0
0.00 %
4
80.00 %
1
20.00 %
1
20.00 %
0
0.00 %
Ceredigion
PAR-IR-EX
1
2
0.01 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
3
36
0.15 %
6
16.67 %
30
83.33 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
2
3
0.01 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
Gwent
PAR-IR-SEV
1
1
0.00 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
PAR-OTHER
2
3
0.01 %
3
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
1
11
0.05 %
3
27.27 %
7
63.64 %
1
9.09 %
1
9.09 %
0
0.00 %
SER-FLEXI
1
281
1.17 %
13
4.63 %
262
93.24 %
8
2.85 %
6
2.14 %
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 May 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Pembs
PAR-IR-EX
3
14
0.06 %
2
14.29 %
11
78.57 %
1
7.14 %
1
7.14 %
0
0.00 %
PAR-IR-SEV
16
76
0.32 %
15
19.74 %
56
73.68 %
5
6.58 %
5
6.58 %
0
0.00 %
PAR-OTHER
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
2
158
0.66 %
6
3.80 %
137
86.71 %
20
12.66 %
15
9.49 %
0
0.00 %
PAR-RAPID
13
27
0.11 %
5
18.52 %
21
77.78 %
2
7.41 %
1
3.70 %
0
0.00 %
PAR-RECUR
4
354
1.48 %
26
7.34 %
301
85.03 %
26
7.34 %
23
6.50 %
4
1.13 %
SER-FLEXI
9
1,153
4.81 %
76
6.59 %
1013
87.86 %
99
8.59 %
62
5.38 %
2
0.17 %
Powys
PAR-OTHER
1
89
0.37 %
0
0.00 %
88
98.88 %
4
4.49 %
1
1.12 %
0
0.00 %
PAR-PERSIS
1
9
0.04 %
1
11.11 %
4
44.44 %
4
44.44 %
4
44.44 %
0
0.00 %
PAR-RAPID
7
24
0.10 %
1
4.17 %
20
83.33 %
3
12.50 %
3
12.50 %
0
0.00 %
PAR-RECUR
2
48
0.20 %
0
0.00 %
46
95.83 %
2
4.17 %
2
4.17 %
0
0.00 %
SER-FLEXI
3
168
0.70 %
4
2.38 %
151
89.88 %
14
8.33 %
12
7.14 %
1
0.60 %
W Glamorgan
PAR-OTHER
2
35
0.15 %
8
22.86 %
25
71.43 %
2
5.71 %
2
5.71 %
0
0.00 %
PAR-RAPID
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Intermediate TB
Ceredigion
PAR-POSTM
1
13
0.05 %
1
7.69 %
11
84.62 %
0
0.00 %
0
0.00 %
1
7.69 %
Mid Glamorgan
PAR-RAPID
1
4
0.02 %
0
0.00 %
3
75.00 %
1
25.00 %
1
25.00 %
0
0.00 %
NE Wales
PAR-IR-EX
1
4
0.02 %
0
0.00 %
4
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
3
26
0.11 %
4
15.38 %
18
69.23 %
3
11.54 %
2
7.69 %
2
7.69 %
PAR-NEW-IN
10
1,027
4.29 %
11
1.07 %
979
95.33 %
52
5.06 %
36
3.51 %
1
0.10 %
PAR-OTHER
2
39
0.16 %
4
10.26 %
32
82.05 %
4
10.26 %
3
7.69 %
0
0.00 %
PAR-POSTM
7
14
0.06 %
1
7.14 %
13
92.86 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
4
11
0.05 %
4
36.36 %
7
63.64 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
3
171
0.71 %
1
0.58 %
154
90.06 %
9
5.26 %
7
4.09 %
9
5.26 %
Powys
PAR-IR-SEV
2
10
0.04 %
2
20.00 %
8
80.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
2
15
0.06 %
1
6.67 %
12
80.00 %
3
20.00 %
2
13.33 %
0
0.00 %
PAR-POSTM
1
2
0.01 %
0
0.00 %
2
100.00 %
1
50.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
2
4
0.02 %
1
25.00 %
3
75.00 %
0
0.00 %
0
0.00 %
0
0.00 %
S Glamorgan
PAR-RAPID
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
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 May 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Wales - Low TB
Gwynedd
PAR-IR-EX
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
5
134
0.56 %
0
0.00 %
106
79.10 %
30
22.39 %
27
20.15 %
1
0.75 %
PAR-POSTM
6
21
0.09 %
0
0.00 %
20
95.24 %
1
4.76 %
1
4.76 %
0
0.00 %
PAR-RAPID
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-IR-EX
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
1
5
0.02 %
0
0.00 %
3
60.00 %
2
40.00 %
2
40.00 %
0
0.00 %
PAR-POSTM
6
12
0.05 %
0
0.00 %
11
91.67 %
1
8.33 %
1
8.33 %
0
0.00 %
PAR-RAPID
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
1
12
0.05 %
2
16.67 %
10
83.33 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales
152
4430
18.50 %
240
5.42 %
3934
88.80 %
320
7.22 %
235
5.30 %
21
0.47 %
Scotland - Scotland
Kirkcudbright
PAR-NEW-IN
4
493
2.06 %
8
1.62 %
432
87.63 %
67
13.59 %
53
10.75 %
0
0.00 %
Wigtown
PAR-NEW-IN
1
24
0.10 %
2
8.33 %
17
70.83 %
5
20.83 %
5
20.83 %
0
0.00 %
Scotland
5
517
2.16 %
10
1.93 %
449
86.85 %
72
13.93 %
58
11.22 %
0
0.00 %
Grand Total
Sum:
269
23949
918
21709
1613
1280
42
*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
2
134
0.14 %
10
7.46 %
111
82.84 %
15
11.19 %
13
9.70 %
0
0.00 %
PAR-CUL-N
3
527
0.53 %
26
4.93 %
485
92.03 %
16
3.04 %
15
2.85 %
1
0.19 %
PAR-CUL-P
2
222
0.22 %
20
9.01 %
173
77.93 %
37
16.67 %
29
13.06 %
0
0.00 %
PAR-PERSIS
2
343
0.35 %
20
5.83 %
301
87.76 %
26
7.58 %
22
6.41 %
0
0.00 %
PAR-RECUR
11
1,288
1.30 %
59
4.58 %
1138
88.35 %
100
7.76 %
85
6.60 %
6
0.47 %
Corn & Scilly
PAR-CHR
1
178
0.18 %
8
4.49 %
151
84.83 %
19
10.67 %
19
10.67 %
0
0.00 %
PAR-CUL-N
5
418
0.42 %
48
11.48 %
359
85.89 %
17
4.07 %
11
2.63 %
0
0.00 %
PAR-CUL-P
5
684
0.69 %
27
3.95 %
609
89.04 %
54
7.89 %
48
7.02 %
0
0.00 %
PAR-OTHER
1
102
0.10 %
1
0.98 %
98
96.08 %
4
3.92 %
3
2.94 %
0
0.00 %
PAR-PERSIS
10
1,862
1.88 %
73
3.92 %
1656
88.94 %
160
8.59 %
133
7.14 %
0
0.00 %
PAR-RECUR
31
5,032
5.09 %
241
4.79 %
4388
87.20 %
465
9.24 %
400
7.95 %
3
0.06 %
Devon
PAR-CHR
1
51
0.05 %
0
0.00 %
47
92.16 %
6
11.76 %
4
7.84 %
0
0.00 %
PAR-CUL-N
9
1,462
1.48 %
103
7.05 %
1222
83.58 %
152
10.40 %
136
9.30 %
1
0.07 %
PAR-CUL-P
6
1,195
1.21 %
47
3.93 %
1049
87.78 %
114
9.54 %
94
7.87 %
5
0.42 %
PAR-PERSIS
11
1,606
1.63 %
76
4.73 %
1409
87.73 %
150
9.34 %
121
7.53 %
0
0.00 %
PAR-RECUR
65
8,083
8.18 %
446
5.52 %
6994
86.53 %
715
8.85 %
630
7.79 %
13
0.16 %
SER-FLEXI
1
133
0.13 %
3
2.26 %
118
88.72 %
10
7.52 %
8
6.02 %
4
3.01 %
Dorset
PAR-CUL-N
5
1,423
1.44 %
58
4.08 %
1279
89.88 %
100
7.03 %
83
5.83 %
3
0.21 %
PAR-OTHER
4
71
0.07 %
1
1.41 %
68
95.77 %
2
2.82 %
2
2.82 %
0
0.00 %
PAR-RECUR
6
1,241
1.26 %
61
4.92 %
1100
88.64 %
93
7.49 %
80
6.45 %
0
0.00 %
SER-FLEXI
2
43
0.04 %
7
16.28 %
34
79.07 %
2
4.65 %
2
4.65 %
0
0.00 %
Gloucs
PAR-CUL-N
7
320
0.32 %
23
7.19 %
247
77.19 %
51
15.94 %
47
14.69 %
3
0.94 %
PAR-CUL-P
1
195
0.20 %
7
3.59 %
170
87.18 %
17
8.72 %
17
8.72 %
1
0.51 %
PAR-RECUR
15
2,996
3.03 %
95
3.17 %
2727
91.02 %
201
6.71 %
170
5.67 %
4
0.13 %
Heref
PAR-CUL-P
2
625
0.63 %
32
5.12 %
570
91.20 %
35
5.60 %
23
3.68 %
0
0.00 %
PAR-OTHER
6
545
0.55 %
32
5.87 %
488
89.54 %
42
7.71 %
25
4.59 %
0
0.00 %
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-PERSIS
9
1,132
1.15 %
61
5.39 %
975
86.13 %
104
9.19 %
93
8.22 %
3
0.27 %
PAR-RECUR
30
4,310
4.36 %
166
3.85 %
3899
90.46 %
302
7.01 %
244
5.66 %
1
0.02 %
Shropshire
PAR-CHR
5
1,207
1.22 %
44
3.65 %
1101
91.22 %
77
6.38 %
62
5.14 %
0
0.00 %
PAR-NEW-IN
2
293
0.30 %
22
7.51 %
252
86.01 %
27
9.22 %
19
6.48 %
0
0.00 %
PAR-OTHER
3
246
0.25 %
4
1.63 %
221
89.84 %
22
8.94 %
21
8.54 %
0
0.00 %
PAR-PERSIS
9
1,880
1.90 %
73
3.88 %
1674
89.04 %
165
8.78 %
133
7.07 %
0
0.00 %
PAR-RECUR
36
4,849
4.91 %
100
2.06 %
4429
91.34 %
356
7.34 %
319
6.58 %
1
0.02 %
Somerset excl N
PAR-CUL-N
2
529
0.54 %
12
2.27 %
492
93.01 %
29
5.48 %
25
4.73 %
0
0.00 %
PAR-OTHER
3
87
0.09 %
15
17.24 %
65
74.71 %
8
9.20 %
7
8.05 %
0
0.00 %
PAR-PERSIS
3
239
0.24 %
4
1.67 %
215
89.96 %
24
10.04 %
20
8.37 %
0
0.00 %
PAR-RECUR
25
3,565
3.61 %
189
5.30 %
3199
89.73 %
230
6.45 %
170
4.77 %
7
0.20 %
SER-FLEXI
2
27
0.03 %
5
18.52 %
19
70.37 %
4
14.81 %
3
11.11 %
0
0.00 %
Staffs
PAR-CHR
2
436
0.44 %
4
0.92 %
419
96.10 %
19
4.36 %
13
2.98 %
0
0.00 %
PAR-CUL-N
2
263
0.27 %
6
2.28 %
214
81.37 %
43
16.35 %
43
16.35 %
0
0.00 %
PAR-CUL-P
1
425
0.43 %
11
2.59 %
401
94.35 %
17
4.00 %
13
3.06 %
0
0.00 %
PAR-OTHER
2
50
0.05 %
3
6.00 %
46
92.00 %
1
2.00 %
1
2.00 %
0
0.00 %
PAR-PERSIS
4
739
0.75 %
13
1.76 %
442
59.81 %
63
8.53 %
63
8.53 %
221
29.91 %
PAR-RECUR
18
2,765
2.80 %
74
2.68 %
2464
89.11 %
191
6.91 %
154
5.57 %
73
2.64 %
Wiltshire
PAR-CUL-N
4
312
0.32 %
20
6.41 %
267
85.58 %
27
8.65 %
25
8.01 %
0
0.00 %
PAR-CUL-P
4
727
0.74 %
53
7.29 %
609
83.77 %
54
7.43 %
50
6.88 %
15
2.06 %
PAR-NEW-IN
1
19
0.02 %
1
5.26 %
13
68.42 %
5
26.32 %
5
26.32 %
0
0.00 %
PAR-OTHER
2
94
0.10 %
10
10.64 %
80
85.11 %
8
8.51 %
4
4.26 %
0
0.00 %
PAR-PERSIS
2
70
0.07 %
7
10.00 %
46
65.71 %
20
28.57 %
17
24.29 %
0
0.00 %
PAR-RECUR
6
1,031
1.04 %
62
6.01 %
896
86.91 %
88
8.54 %
71
6.89 %
2
0.19 %
Worcs
PAR-RECUR
7
370
0.37 %
26
7.03 %
313
84.59 %
40
10.81 %
31
8.38 %
0
0.00 %
England - Edge
Berks
PAR-RECUR
1
125
0.13 %
2
1.60 %
118
94.40 %
5
4.00 %
5
4.00 %
0
0.00 %
Bucks
PAR-CUL-N
1
224
0.23 %
10
4.46 %
204
91.07 %
11
4.91 %
10
4.46 %
0
0.00 %
PAR-NEW-IN
6
1,150
1.16 %
24
2.09 %
1071
93.13 %
65
5.65 %
55
4.78 %
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
%
Cheshire
PAR-CUL-N
3
1,208
1.22 %
26
2.15 %
1122
92.88 %
72
5.96 %
60
4.97 %
0
0.00 %
PAR-CUL-P
2
85
0.09 %
0
0.00 %
56
65.88 %
29
34.12 %
29
34.12 %
0
0.00 %
PAR-NEW-IN
4
555
0.56 %
18
3.24 %
499
89.91 %
42
7.57 %
38
6.85 %
0
0.00 %
PAR-OTHER
2
86
0.09 %
3
3.49 %
75
87.21 %
9
10.47 %
8
9.30 %
0
0.00 %
PAR-PERSIS
3
1,840
1.86 %
43
2.34 %
1709
92.88 %
131
7.12 %
85
4.62 %
3
0.16 %
PAR-RECUR
9
4,059
4.11 %
82
2.02 %
3827
94.28 %
190
4.68 %
149
3.67 %
1
0.02 %
Derbyshire
PAR-NEW-IN
5
550
0.56 %
14
2.55 %
483
87.82 %
57
10.36 %
51
9.27 %
2
0.36 %
PAR-RECUR
2
318
0.32 %
9
2.83 %
283
88.99 %
29
9.12 %
21
6.60 %
5
1.57 %
E Sussex
PAR-NEW-IN
4
209
0.21 %
4
1.91 %
190
90.91 %
15
7.18 %
13
6.22 %
2
0.96 %
Hampshire
PAR-NEW-IN
4
487
0.49 %
17
3.49 %
430
88.30 %
40
8.21 %
37
7.60 %
3
0.62 %
Leics & Rut
PAR-CUL-N
1
30
0.03 %
3
10.00 %
26
86.67 %
2
6.67 %
1
3.33 %
0
0.00 %
PAR-NEW-IN
16
2,074
2.10 %
69
3.33 %
1851
89.25 %
172
8.29 %
150
7.23 %
4
0.19 %
Northants
PAR-NEW-IN
10
1,029
1.04 %
22
2.14 %
883
85.81 %
133
12.93 %
124
12.05 %
0
0.00 %
PAR-RECUR
1
114
0.12 %
1
0.88 %
93
81.58 %
11
9.65 %
20
17.54 %
0
0.00 %
Notts
PAR-CUL-N
2
451
0.46 %
9
2.00 %
422
93.57 %
31
6.87 %
19
4.21 %
1
0.22 %
PAR-NEW-IN
6
769
0.78 %
22
2.86 %
698
90.77 %
62
8.06 %
49
6.37 %
0
0.00 %
Oxon
PAR-NEW-IN
13
1,866
1.89 %
106
5.68 %
1635
87.62 %
146
7.82 %
125
6.70 %
0
0.00 %
PAR-PERSIS
2
160
0.16 %
15
9.38 %
136
85.00 %
9
5.63 %
9
5.63 %
0
0.00 %
PAR-RECUR
3
271
0.27 %
7
2.58 %
241
88.93 %
26
9.59 %
23
8.49 %
0
0.00 %
Warks
PAR-RECUR
4
360
0.36 %
10
2.78 %
317
88.06 %
37
10.28 %
33
9.17 %
0
0.00 %
England - LRA
Beds
PAR-CUL-N
1
153
0.15 %
1
0.65 %
126
82.35 %
32
20.92 %
24
15.69 %
2
1.31 %
PAR-NEW-IN
2
94
0.10 %
1
1.06 %
89
94.68 %
3
3.19 %
3
3.19 %
1
1.06 %
Cambs
PAR-NEW-IN
2
73
0.07 %
1
1.37 %
67
91.78 %
4
5.48 %
4
5.48 %
1
1.37 %
Cumbria
PAR-NEW-IN
4
393
0.40 %
5
1.27 %
339
86.26 %
35
8.91 %
31
7.89 %
18
4.58 %
Gr Manchester
PAR-NEW-IN
5
245
0.25 %
1
0.41 %
230
93.88 %
18
7.35 %
14
5.71 %
0
0.00 %
Herts
PAR-NEW-IN
5
253
0.26 %
14
5.53 %
197
77.87 %
41
16.21 %
39
15.42 %
3
1.19 %
I of Wight
PAR-NEW-IN
1
86
0.09 %
1
1.16 %
80
93.02 %
7
8.14 %
5
5.81 %
0
0.00 %
Kent
PAR-NEW-IN
1
63
0.06 %
2
3.17 %
56
88.89 %
5
7.94 %
5
7.94 %
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
%
Lancashire
PAR-NEW-IN
3
566
0.57 %
11
1.94 %
516
91.17 %
41
7.24 %
36
6.36 %
3
0.53 %
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
5
180
0.18 %
4
2.22 %
166
92.22 %
12
6.67 %
10
5.56 %
0
0.00 %
Northumb
PAR-NEW-IN
1
248
0.25 %
10
4.03 %
208
83.87 %
19
7.66 %
17
6.85 %
13
5.24 %
N Yorks
PAR-NEW-IN
4
416
0.42 %
9
2.16 %
275
66.11 %
33
7.93 %
28
6.73 %
104
25.00 %
W Sussex
PAR-NEW-IN
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
W Yorks
PAR-NEW-IN
4
362
0.37 %
10
2.76 %
319
88.12 %
42
11.60 %
33
9.12 %
0
0.00 %
England
542
77598
78.52 %
3095
3.99 %
68781
88.64 %
6143
7.92 %
5189
6.69 %
533
0.69 %
Wales - High TB
Carms
PAR-IR-EX
5
19
0.02 %
6
31.58 %
13
68.42 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
18
112
0.11 %
41
36.61 %
50
44.64 %
13
11.61 %
8
7.14 %
13
11.61 %
PAR-OTHER
1
4
0.00 %
0
0.00 %
4
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
26
108
0.11 %
31
28.70 %
63
58.33 %
9
8.33 %
8
7.41 %
6
5.56 %
PAR-RECUR
3
354
0.36 %
21
5.93 %
324
91.53 %
14
3.95 %
9
2.54 %
0
0.00 %
SER-FLEXI
12
1,674
1.69 %
106
6.33 %
1472
87.93 %
113
6.75 %
93
5.56 %
3
0.18 %
Ceredigion
PAR-IR-EX
8
24
0.02 %
6
25.00 %
17
70.83 %
0
0.00 %
0
0.00 %
1
4.17 %
PAR-IR-SEV
14
65
0.07 %
17
26.15 %
42
64.62 %
4
6.15 %
4
6.15 %
2
3.08 %
PAR-RAPID
7
12
0.01 %
4
33.33 %
5
41.67 %
1
8.33 %
1
8.33 %
2
16.67 %
PAR-RECUR
1
31
0.03 %
10
32.26 %
21
67.74 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
2
51
0.05 %
2
3.92 %
47
92.16 %
3
5.88 %
2
3.92 %
0
0.00 %
Gwent
PAR-IR-SEV
6
24
0.02 %
3
12.50 %
18
75.00 %
3
12.50 %
3
12.50 %
0
0.00 %
PAR-OTHER
6
147
0.15 %
5
3.40 %
129
87.76 %
18
12.24 %
13
8.84 %
0
0.00 %
PAR-RAPID
9
25
0.03 %
6
24.00 %
16
64.00 %
3
12.00 %
3
12.00 %
0
0.00 %
PAR-RECUR
3
70
0.07 %
0
0.00 %
66
94.29 %
6
8.57 %
3
4.29 %
1
1.43 %
SER-FLEXI
7
1,002
1.01 %
47
4.69 %
905
90.32 %
52
5.19 %
48
4.79 %
2
0.20 %
Pembs
PAR-IR-EX
17
82
0.08 %
26
31.71 %
54
65.85 %
3
3.66 %
2
2.44 %
0
0.00 %
PAR-IR-SEV
77
479
0.48 %
123
25.68 %
331
69.10 %
24
5.01 %
19
3.97 %
6
1.25 %
PAR-OTHER
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
14
939
0.95 %
64
6.82 %
774
82.43 %
115
12.25 %
92
9.80 %
9
0.96 %
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
69
170
0.17 %
48
28.24 %
111
65.29 %
12
7.06 %
10
5.88 %
1
0.59 %
PAR-RECUR
17
1,339
1.35 %
62
4.63 %
1182
88.27 %
107
7.99 %
86
6.42 %
9
0.67 %
SER-FLEXI
39
3,731
3.78 %
335
8.98 %
3123
83.70 %
295
7.91 %
234
6.27 %
40
1.07 %
Powys
PAR-IR-EX
3
5
0.01 %
0
0.00 %
5
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
14
51
0.05 %
7
13.73 %
38
74.51 %
7
13.73 %
6
11.76 %
0
0.00 %
PAR-OTHER
6
252
0.26 %
9
3.57 %
225
89.29 %
22
8.73 %
18
7.14 %
0
0.00 %
PAR-PERSIS
3
267
0.27 %
2
0.75 %
247
92.51 %
20
7.49 %
18
6.74 %
0
0.00 %
PAR-POSTM
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RAPID
25
61
0.06 %
14
22.95 %
40
65.57 %
8
13.11 %
7
11.48 %
0
0.00 %
PAR-RECUR
7
301
0.30 %
15
4.98 %
265
88.04 %
24
7.97 %
21
6.98 %
0
0.00 %
SER-FLEXI
3
168
0.17 %
4
2.38 %
151
89.88 %
14
8.33 %
12
7.14 %
1
0.60 %
S Wales
PAR-IR-SEV
1
4
0.00 %
4
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
W Glamorgan
PAR-OTHER
2
35
0.04 %
8
22.86 %
25
71.43 %
2
5.71 %
2
5.71 %
0
0.00 %
PAR-RAPID
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Intermediate TB
Carms
PAR-IR-SEV
3
11
0.01 %
3
27.27 %
2
18.18 %
2
18.18 %
2
18.18 %
4
36.36 %
PAR-OTHER
1
2
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
2
100.00 %
PAR-RAPID
3
7
0.01 %
2
28.57 %
5
71.43 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
2
145
0.15 %
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
1
5
0.01 %
3
60.00 %
2
40.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Mid Glamorgan
PAR-RAPID
1
4
0.00 %
0
0.00 %
3
75.00 %
1
25.00 %
1
25.00 %
0
0.00 %
NE Wales
PAR-IR-EX
7
25
0.03 %
4
16.00 %
21
84.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-IR-SEV
15
80
0.08 %
14
17.50 %
62
77.50 %
3
3.75 %
2
2.50 %
2
2.50 %
PAR-NEW-IN
29
3,306
3.35 %
50
1.51 %
3059
92.53 %
230
6.96 %
184
5.57 %
13
0.39 %
PAR-OTHER
2
39
0.04 %
4
10.26 %
32
82.05 %
4
10.26 %
3
7.69 %
0
0.00 %
PAR-PERSIS
3
191
0.19 %
3
1.57 %
169
88.48 %
18
9.42 %
18
9.42 %
1
0.52 %
PAR-POSTM
30
101
0.10 %
9
8.91 %
88
87.13 %
5
4.95 %
4
3.96 %
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 2022 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-RAPID
16
35
0.04 %
10
28.57 %
25
71.43 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
10
568
0.57 %
34
5.99 %
501
88.20 %
26
4.58 %
23
4.05 %
10
1.76 %
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
2
10
0.01 %
2
20.00 %
8
80.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
12
851
0.86 %
58
6.82 %
744
87.43 %
61
7.17 %
47
5.52 %
2
0.24 %
PAR-OTHER
2
214
0.22 %
8
3.74 %
182
85.05 %
28
13.08 %
24
11.21 %
0
0.00 %
PAR-POSTM
2
3
0.00 %
0
0.00 %
3
100.00 %
1
33.33 %
0
0.00 %
0
0.00 %
PAR-RAPID
4
8
0.01 %
2
25.00 %
6
75.00 %
0
0.00 %
0
0.00 %
0
0.00 %
S Glamorgan
PAR-OTHER
3
9
0.01 %
3
33.33 %
5
55.56 %
1
11.11 %
1
11.11 %
0
0.00 %
PAR-RAPID
3
10
0.01 %
7
70.00 %
3
30.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-RECUR
3
115
0.12 %
26
22.61 %
72
62.61 %
21
18.26 %
17
14.78 %
0
0.00 %
Shropshire
PAR-IR-EX
2
5
0.01 %
0
0.00 %
3
60.00 %
2
40.00 %
2
40.00 %
0
0.00 %
W Glamorgan
PAR-RECUR
2
113
0.11 %
3
2.65 %
101
89.38 %
9
7.96 %
9
7.96 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-IR-EX
1
1
0.00 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
34
1,922
1.94 %
74
3.85 %
1597
83.09 %
281
14.62 %
248
12.90 %
3
0.16 %
PAR-POSTM
22
71
0.07 %
4
5.63 %
65
91.55 %
2
2.82 %
2
2.82 %
0
0.00 %
PAR-RAPID
2
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-HERD-S
2
40
0.04 %
4
10.00 %
28
70.00 %
8
20.00 %
8
20.00 %
0
0.00 %
PAR-IR-EX
2
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
6
243
0.25 %
6
2.47 %
218
89.71 %
22
9.05 %
17
7.00 %
2
0.82 %
PAR-POSTM
33
62
0.06 %
2
3.23 %
57
91.94 %
4
6.45 %
2
3.23 %
1
1.61 %
PAR-RAPID
3
10
0.01 %
2
20.00 %
7
70.00 %
1
10.00 %
1
10.00 %
0
0.00 %
SER-FLEXI
3
396
0.40 %
40
10.10 %
322
81.31 %
40
10.10 %
34
8.59 %
0
0.00 %
Wales
697
20231
20.47 %
1414
6.99 %
17302
85.52 %
1671
8.26 %
1379
6.82 %
137
0.68 %
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 %
Kirkcudbright
PAR-NEW-IN
4
493
0.50 %
8
1.62 %
432
87.63 %
67
13.59 %
53
10.75 %
0
0.00 %
Wigtown
PAR-NEW-IN
3
496
0.50 %
14
2.82 %
452
91.13 %
37
7.46 %
30
6.05 %
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
%
Scotland
9
994
1.01 %
22
2.21 %
889
89.44 %
104
10.46 %
83
8.35 %
0
0.00 %
Grand Total
Sum:
1248
98823
4531
86972
7918
6651
670
*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 May 2022
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
111
18869
99.3%
665
3.5%
17208
91.2%
1211
6.4%
979
5.2%
17
0.1%
Serial/Extended
1
133
0.7%
3
2.3%
118
88.7%
10
7.5%
8
6.0%
4
3.0%
Total
112
19002
100.0%
668
3.5%
17326
91.2%
1221
6.4%
987
5.2%
21
0.1%
Scotland
Parallel
5
517
100.0%
10
1.9%
449
86.8%
72
13.9%
58
11.2%
0
0.0 %
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
5
517
100.0%
10
1.9%
449
86.8%
72
13.9%
58
11.2%
0
0.0 %
Wales
Parallel
134
2640
59.6%
144
5.5%
2340
88.6%
189
7.2%
147
5.6%
9
0.3%
Serial/Extended
18
1790
40.4%
96
5.4%
1594
89.1%
131
7.3%
88
4.9%
12
0.7%
Total
152
4430
100.0%
240
5.4%
3934
88.8%
320
7.2%
235
5.3%
21
0.5%
GB
Parallel
250
22026
92.0%
819
3.7%
19997
90.8%
1472
6.7%
1184
5.4%
26
0.1%
Serial/Extended
19
1923
8.0%
99
5.1%
1712
89.0%
141
7.3%
96
5.0%
16
0.8%
Total
269
23949
100.0%
918
3.8%
21709
90.6%
1613
6.7%
1280
5.3%
42
0.2%
112.00
152.00
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 2022)
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
536
77394
99.7%
3080
4.0%
68609
88.6%
6127
7.9%
5176
6.7%
529
0.7%
Serial/Extended
6
204
0.3%
15
7.4%
172
84.3%
16
7.8%
13
6.4%
4
2.0%
Total
542
77598
100.0%
3095
4.0%
68781
88.6%
6143
7.9%
5189
6.7%
533
0.7%
Scotland
Parallel
7
989
99.5%
22
2.2%
884
89.4%
104
10.5%
83
8.4%
0
0.0 %
Serial/Extended
2
5
0.5%
0
0.0 %
5 100.0%
0
0.0 %
0
0.0 %
0
0.0 %
Total
9
994
100.0%
22
2.2%
889
89.4%
104
10.5%
83
8.4%
0
0.0 %
Wales
Parallel
619
12496
61.8%
836
6.7%
10654
85.3%
1119
9.0%
925
7.4%
81
0.6%
Serial/Extended
78
7735
38.2%
578
7.5%
6648
85.9%
552
7.1%
454
5.9%
56
0.7%
Total
697
20231
100.0%
1414
7.0%
17302
85.5%
1671
8.3%
1379
6.8%
137
0.7%
GB
Parallel
1162
90879
92.0%
3938
4.3%
80147
88.2%
7350
8.1%
6184
6.8%
610
0.7%
Serial/Extended
86
7944
8.0%
593
7.5%
6825
85.9%
568
7.2%
467
5.9%
60
0.8%
Total
1248
98823
100.0%
4531
4.6%
86972
88.0%
7918
8.0%
6651
6.7%
670
0.7%
542.00
697.00
9.00
* 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
19
1923
8.0%
99
5.1%
1712
89.0%
141
7.3 %
96
5.0 %
16
0.8 %
Parallel – chronic breakdown
7
1296
5.4%
50
3.9%
1182
91.2%
83
6.4 %
64
4.9 %
0
Parallel - IRs in Exit Strategy for persistent her
9
30
0.1%
5
16.7%
24
80.0%
1
3.3 %
1
3.3 %
0
Parallel New Infection
53
4838
20.2%
124
2.6%
4370
90.3%
403
8.3 %
339
7.0 %
5
0.1 %
Parallel - new infection cull area
2
529
2.2%
12
2.3%
492
93.0%
29
5.5 %
25
4.7 %
0
Parallel - Other
13
287
1.2%
21
7.3%
248
86.4%
26
9.1 %
18
6.3 %
0
Parallel Persistent Infection
12
1195
5.0%
30
2.5%
1064
89.0%
124
10.4 %
101
8.5 %
0
Parallel - persistent infection cull area
2
625
2.6%
32
5.1%
570
91.2%
35
5.6 %
23
3.7 %
0
Parallel – post-mvt test coupled with IDEXX an
21
62
0.3%
2
3.2%
57
91.9%
3
4.8 %
2
3.2 %
1
1.6 %
Parallel - Rapid Testing Two-times IRs
41
135
0.6%
32
23.7%
92
68.1%
13
9.6 %
11
8.1 %
0
Parallel - Recurrent breakdowns
63
12865
53.7%
482
3.7%
11775
91.5%
741
5.8 %
590
4.6 %
18
0.1 %
Parallel - severe IRs - in persistent herds
27
164
0.7%
29
17.7%
123
75.0%
14
8.5 %
10
6.1 %
2
1.2 %
Total
269
23949
100.0%
918
3.8%
21709
90.6%
1613
6.7 %
1280
5.3 %
42
0.2 %
Table 4a. Summaryof IFN Gamma results by submission reason (May 2022)
England - HRA
Extended Flexible IFN-GAMMA test
1
133
0.6%
3
2.3%
118
88.7%
10
7.5 %
8
6.0 %
4
3.0 %
Parallel – chronic breakdown
7
1296
5.4%
50
3.9%
1182
91.2%
83
6.4 %
64
4.9 %
0
Parallel New Infection
1
13
0.1%
1
7.7%
7
53.8%
6
46.2 %
5
38.5 %
0
Parallel - new infection cull area
2
529
2.2%
12
2.3%
492
93.0%
29
5.5 %
25
4.7 %
0
Parallel - Other
3
34
0.1%
3
8.8%
27
79.4%
7
20.6 %
4
11.8 %
0
Parallel Persistent Infection
9
1028
4.3%
23
2.2%
923
89.8%
100
9.7 %
82
8.0 %
0
Parallel - persistent infection cull area
2
625
2.6%
32
5.1%
570
91.2%
35
5.6 %
23
3.7 %
0
Parallel - Recurrent breakdowns
47
7960
33.2%
355
4.5%
7206
90.5%
493
6.2 %
391
4.9 %
8
0.1 %
England - HRA
72
11618
48.5%
479
4.1%
10525
90.6%
763
6.6 %
602
5.2 %
12
0.1 %
England - Edge
Parallel New Infection
18
2150
9.0%
84
3.9%
1918
89.2%
167
7.8 %
148
6.9 %
0
Parallel - Other
2
86
0.4%
3
3.5%
75
87.2%
9
10.5 %
8
9.3 %
0
Parallel - Recurrent breakdowns
9
4171
17.4%
85
2.0%
3912
93.8%
211
5.1 %
168
4.0 %
6
0.1 %
England - Edge
29
6407
26.8%
172
2.7%
5905
92.2%
387
6.0 %
324
5.1 %
6
0.1 %
England - LRA
Parallel New Infection
11
977
4.1%
17
1.7%
896
91.7%
71
7.3 %
61
6.2 %
3
0.3 %
England - LRA
11
977
4.1%
17
1.7%
896
91.7%
71
7.3 %
61
6.2 %
3
0.3 %
Wales - High TB
Extended Flexible IFN-GAMMA test
14
1607
6.7%
93
5.8%
1430
89.0%
122
7.6 %
81
5.0 %
3
0.2 %
Parallel - IRs in Exit Strategy for persistent her
6
24
0.1%
5
20.8%
18
75.0%
1
4.2 %
1
4.2 %
0
Parallel - Other
6
128
0.5%
11
8.6%
114
89.1%
6
4.7 %
3
2.3 %
0
Parallel Persistent Infection
3
167
0.7%
7
4.2%
141
84.4%
24
14.4 %
19
11.4 %
0
Parallel - Rapid Testing Two-times IRs
31
113
0.5%
26
23.0%
77
68.1%
12
10.6 %
10
8.8 %
0
Parallel - Recurrent breakdowns
7
734
3.1%
42
5.7%
657
89.5%
37
5.0 %
31
4.2 %
4
0.5 %
Parallel - severe IRs - in persistent herds
22
128
0.5%
23
18.0%
97
75.8%
11
8.6 %
8
6.3 %
0
Wales - High TB
89
2901
12.1%
207
7.1%
2534
87.3%
213
7.3 %
153
5.3 %
7
0.2 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
3
171
0.7%
1
0.6%
154
90.1%
9
5.3 %
7
4.1 %
9
5.3 %
Parallel - IRs in Exit Strategy for persistent her
1
4
0.0%
0
0.0 %
4
100.0%
0
0
0
Parallel New Infection
12
1042
4.4%
12
1.2%
991
95.1%
55
5.3 %
38
3.6 %
1
0.1 %
Parallel - Other
2
39
0.2%
4
10.3%
32
82.1%
4
10.3 %
3
7.7 %
0
Parallel – post-mvt test coupled with IDEXX an
9
29
0.1%
2
6.9%
26
89.7%
1
3.4 %
0
1
3.4 %
Parallel - Rapid Testing Two-times IRs
8
20
0.1%
5
25.0%
14
70.0%
1
5.0 %
1
5.0 %
0
Parallel - severe IRs - in persistent herds
5
36
0.2%
6
16.7%
26
72.2%
3
8.3 %
2
5.6 %
2
5.6 %
Wales - Intermediate TB
40
1341
5.6%
30
2.2%
1247
93.0%
73
5.4 %
51
3.8 %
13
1.0 %
Wales - Low TB
Extended Flexible IFN-GAMMA test
1
12
0.1%
2
16.7%
10
83.3%
0
0
0
Parallel - IRs in Exit Strategy for persistent her
2
2
0.0%
0
0.0 %
2
100.0%
0
0
0
Parallel New Infection
6
139
0.6%
0
0.0 %
109
78.4%
32
23.0 %
29
20.9 %
1
0.7 %
Parallel – post-mvt test coupled with IDEXX an
12
33
0.1%
0
0.0 %
31
93.9%
2
6.1 %
2
6.1 %
0
Parallel - Rapid Testing Two-times IRs
2
2
0.0%
1
50.0%
1
50.0%
0
0
0
Wales - Low TB
23
188
0.8%
3
1.6%
153
81.4%
34
18.1 %
31
16.5 %
1
0.5 %
Scotland - Scotland
Parallel New Infection
5
517
2.2%
10
1.9%
449
86.8%
72
13.9 %
58
11.2 %
0
Scotland - Scotland
5
517
2.2%
10
1.9%
449
86.8%
72
13.9 %
58
11.2 %
0

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
83
7938
8.0%
593
7.5%
6819
85.9%
568
7.2 %
467
5.9 %
60
0.8 %
Parallel – chronic breakdown
11
2006
2.0%
66
3.3%
1829
91.2%
136
6.8 %
111
5.5 %
0
Parallel - Herd or Group Slaughter
2
40
0.0%
4
10.0%
28
70.0%
8
20.0 %
8
20.0 %
0
Parallel - IRs in Exit Strategy for persistent herds
46
164
0.2%
42
25.6%
117
71.3%
5
3.0 %
4
2.4 %
1
0.6 %
Parallel New Infection
197
19292
19.5%
598
3.1%
17050
88.4%
1722
8.9 %
1470
7.6 %
174
0.9 %
Parallel - new infection cull area
45
7320
7.4%
345
4.7%
6465
88.3%
583
8.0 %
499
6.8 %
11
0.2 %
Parallel - Other
47
1984
2.0%
106
5.3%
1744
87.9%
171
8.6 %
132
6.7 %
2
0.1 %
Parallel Persistent Infection
75
11268
11.4%
454
4.0%
9753
86.6%
1005
8.9 %
824
7.3 %
237
2.1 %
Parallel - persistent infection cull area
23
4158
4.2%
197
4.7%
3637
87.5%
357
8.6 %
303
7.3 %
21
0.5 %
Parallel – post-mvt test coupled with IDEXX anti
89
252
0.3%
16
6.3%
226
89.7%
12
4.8 %
8
3.2 %
2
0.8 %
Parallel - Rapid Testing Two-times IRs
170
458
0.5%
129
28.2%
289
63.1%
35
7.6 %
31
6.8 %
9
2.0 %
Parallel - Recurrent breakdowns
306
43100
43.6%
1767
4.1%
38457
89.2%
3260
7.6 %
2750
6.4 %
126
0.3 %
Parallel - severe IRs - in persistent herds
151
837
0.8%
214
25.6%
552
65.9%
56
6.7 %
44
5.3 %
27
3.2 %
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
1248
98823
100.0%
4531
4.6%
86972
88.0%
7918
8.0 %
6651
6.7 %
670
0.7 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2022)
England - HRA
Extended Flexible IFN-GAMMA test
5
203
0.2%
15
7.4%
171
84.2%
16
7.9 %
13
6.4 %
4
2.0 %
Parallel – chronic breakdown
11
2006
2.0%
66
3.3%
1829
91.2%
136
6.8 %
111
5.5 %
0
Parallel New Infection
3
312
0.3%
23
7.4%
265
84.9%
32
10.3 %
24
7.7 %
0
Parallel - new infection cull area
37
5254
5.3%
296
5.6%
4565
86.9%
435
8.3 %
385
7.3 %
8
0.2 %
Parallel - Other
21
1195
1.2%
66
5.5%
1066
89.2%
87
7.3 %
63
5.3 %
0
Parallel Persistent Infection
50
7871
8.0%
327
4.2%
6718
85.4%
712
9.0 %
602
7.6 %
224
2.8 %
Parallel - persistent infection cull area
21
4073
4.1%
197
4.8%
3581
87.9%
328
8.1 %
274
6.7 %
21
0.5 %
Parallel - Recurrent breakdowns
250
35530
36.0%
1519
4.3%
31547
88.8%
2781
7.8 %
2354
6.6 %
110
0.3 %
England - Edge
Parallel New Infection
68
8689
8.8%
296
3.4%
7740
89.1%
732
8.4 %
642
7.4 %
11
0.1 %
Parallel - new infection cull area
7
1913
1.9%
48
2.5%
1774
92.7%
116
6.1 %
90
4.7 %
1
0.1 %
Parallel - Other
2
86
0.1%
3
3.5%
75
87.2%
9
10.5 %
8
9.3 %
0

Table 4b. Summary of IFN Gamma results by submission reason (Total 2022) Cont.
Parallel Persistent Infection
5
2000
2.0%
58
2.9%
1845
92.3%
140
7.0 %
94
4.7 %
3
0.2 %
Parallel - persistent infection cull area
2
85
0.1%
0
0.0 %
56
65.9%
29
34.1 %
29
34.1 %
0
Parallel - Recurrent breakdowns
20
5247
5.3%
111
2.1%
4879
93.0%
298
5.7 %
251
4.8 %
6
0.1 %
England - LRA
Parallel New Infection
38
2980
3.0%
69
2.3%
2543
85.3%
260
8.7 %
225
7.6 %
143
4.8 %
Parallel - new infection cull area
1
153
0.2%
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
542
77598
78.5%
3095
4.0%
68781
88.6%
6143
7.9 %
5189
6.7 %
533
0.7 %
Wales - High TB
Extended Flexible IFN-GAMMA test
63
6626
6.7%
494
7.5%
5698
86.0%
477
7.2 %
389
5.9 %
46
0.7 %
Parallel - IRs in Exit Strategy for persistent herd
33
130
0.1%
38
29.2%
89
68.5%
3
2.3 %
2
1.5 %
1
0.8 %
Parallel - Other
16
439
0.4%
22
5.0%
384
87.5%
42
9.6 %
33
7.5 %
0
Parallel Persistent Infection
17
1206
1.2%
66
5.5%
1021
84.7%
135
11.2 %
110
9.1 %
9
0.7 %
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
137
377
0.4%
103
27.3%
236
62.6%
33
8.8 %
29
7.7 %
9
2.4 %
Parallel - Recurrent breakdowns
31
2095
2.1%
108
5.2%
1858
88.7%
151
7.2 %
119
5.7 %
10
0.5 %
Parallel - severe IRs - in persistent herds
130
735
0.7%
195
26.5%
479
65.2%
51
6.9 %
40
5.4 %
21
2.9 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
12
713
0.7%
44
6.2%
628
88.1%
35
4.9 %
31
4.3 %
10
1.4 %
Parallel - IRs in Exit Strategy for persistent herd
10
31
0.0%
4
12.9%
25
80.6%
2
6.5 %
2
6.5 %
0
Parallel New Infection
41
4157
4.2%
108
2.6%
3803
91.5%
291
7.0 %
231
5.6 %
15
0.4 %
Parallel - Other
8
264
0.3%
15
5.7%
219
83.0%
33
12.5 %
28
10.6 %
2
0.8 %
Parallel Persistent Infection
3
191
0.2%
3
1.6%
169
88.5%
18
9.4 %
18
9.4 %
1
0.5 %
Parallel – post-mvt test coupled with IDEXX ant
33
117
0.1%
10
8.5%
102
87.2%
6
5.1 %
4
3.4 %
1
0.9 %
Parallel - Rapid Testing Two-times IRs
28
69
0.1%
24
34.8%
44
63.8%
1
1.4 %
1
1.4 %
0
Parallel - Recurrent breakdowns
5
228
0.2%
29
12.7%
173
75.9%
30
13.2 %
26
11.4 %
0
Parallel - severe IRs - in persistent herds
21
102
0.1%
19
18.6%
73
71.6%
5
4.9 %
4
3.9 %
6
5.9 %
Wales - Low TB
Extended Flexible IFN-GAMMA test
3
396
0.4%
40
10.1%
322
81.3%
40
10.1 %
34
8.6 %
0
Parallel - Herd or Group Slaughter
2
40
0.0%
4
10.0%
28
70.0%
8
20.0 %
8
20.0 %
0
Parallel - IRs in Exit Strategy for persistent herd
3
3
0.0%
0
0.0 %
3
100.0%
0
0
0
Parallel New Infection
40
2165
2.2%
80
3.7%
1815
83.8%
303
14.0 %
265
12.2 %
5
0.2 %
Parallel – post-mvt test coupled with IDEXX ant
55
133
0.1%
6
4.5%
122
91.7%
6
4.5 %
4
3.0 %
1
0.8 %
Parallel - Rapid Testing Two-times IRs
5
12
0.0%
2
16.7%
9
75.0%
1
8.3 %
1
8.3 %
0
Wales
697
20231
20.5%
1414
7.0%
17302
85.5%
1671
8.3 %
1379
6.8 %
137
0.7 %
Scotland - Scotland
Parallel New Infection
7
989
1.0%
22
2.2%
884
89.4%
104
10.5 %
83
8.4 %
0

Table 4b. Summary of IFN Gamma results by submission reason (Total 2022) Cont.
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
9
994
1.0%
22
2.2%
889
89.4%
104
10.5 %
83
8.4 %
0

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 June
355
27828
208
1314
1
19
0
0
0
0
105
4
0
4
0
1083
0
93
0
5
July
298
24841
164
1077
30
0
0
0
0
61
4
0
4
0
936
0
42
0
0
August
312
17920
167
912
3
26
0
0
0
0
35
2
0
7
0
755
0
82
1
1
September
274
15805
130
890
13
0
0
0
0
95
1
0
7
0
742
0
31
0
0
October
276
19790
140
814
15
0
0
0
0
44
3
0
17
2
696
0
36
1
0
November
329
25737
195
1349
26
0
0
0
0
92
1
0
25
1
1143
0
61
0
0
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
1
0
3
2
765
6
85
0
0
March
268
23046
165
1108
35
0
0
0
0
60
0
3
14
1
931
30
30
0
4
April
220
15067
130
687
12
0
0
0
0
48
0
12
1
0
564
50
0
0
0
May
269
23949
158
918
263
260
0
0
0
0
41
0
3
0
0
127
4
0
0
0
Totals (last
12 months)
3330
243861
1856
11646
268
488
0
0
0
0
739
22
18
100
8
9143
91
534
2
10
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
1526
191056
1005
8338
418
0
0
0
0
692
11
3
42
5
6819
5
23
0
0
Scotland
22
2150
15
58
3
0
0
0
0
6
0
0
0
0
34
0
10
0
5
Wales
1782
50655
836
3250
67
0
0
0
0
41
11
15
58
3
2290
86
501
2
5
Totals
3330
243861
1856
11646
488
0
0
0
0
739
22
18
100
8
9143
91
534
2
10
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
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
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
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
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
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
10
20
30
40
50
60
Worcs
Wigtown
Warks
Somerset excl N
S Glamorgan
Pembs
Notts
NE Wales
Lincs
Lancashire
I of Wight
Hampshire
Gwent
E Sussex
Devon
Cumbria
Cheshire
Carms
Bucks
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during May 2022 (% submission per County)
County
%Resampled %Retested
Avon
8.13 %
8.13 %
Bucks
5.46 %
6.26 %
Cambs
Carms
3.44 %
5.16 %
Ceredigion
Cheshire
3.77 %
4.67 %
Corn & Scilly
5.60 %
6.94 %
Cumbria
6.94 %
7.64 %
Derbyshire
6.65 %
9.18 %
Devon
5.35 %
6.39 %
Dorset
E Sussex
6.12 %
7.48 %
Gloucs
6.12 %
7.59 %
Gwent
2.70 %
3.38 %
Gwynedd
17.83 %
19.75 %
Hampshire
21.21 %
21.21 %
Heref
5.17 %
6.82 %
I of Wight
5.81 %
8.14 %
Kirkcudbright
10.75 %
13.59 %
Lancashire
6.36 %
7.24 %
Leics & Rut
9.29 %
9.71 %
Lincs
5.56 %
6.67 %
Mid Glamorgan
25.00 %
25.00 %
NE Wales
3.85 %
5.37 %
Northants
6.52 %
8.70 %
Notts
7.14 %
9.01 %
Oxon
4.22 %
4.96 %
Pembs
6.00 %
8.58 %
Powys
6.50 %
8.40 %
S Glamorgan
Shropshire
5.25 %
6.67 %
Somerset excl
3.67 %
4.75 %
Staffs
2.98 %
4.36 %
Warks
5.77 %
7.69 %
W Glamorgan
5.56 %
5.56 %

Wigtown
20.83 %
20.83 %
Wiltshire
5.67 %
8.00 %
Worcs
8.31 %
10.98 %

Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
18883
668
3.5%
19002
668
3.5%
Wales
4379
240
5.5%
4430
240
5.4%
Scotland
480
10
2.1%
517
10
1.9%
GB
23742
918
3.9%
23949
918
3.8%
Table 6a (i): Number of animals and submissions tested in May 2022
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
72565
3095
4.3%
77598
3095
4.0%
Wales
19177
1414
7.4%
20231
1414
7.0%
Scotland
933
22
2.4%
994
22
2.2%
GB
92674
4531
4.9%
98823
4531
4.6%
Table 6b (i): Number of animals and submissions tested in 2022 Up to end of May
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
20408
1055
5.2%
20660
1058
5.1%
Wales
6304
488
7.7%
6394
488
7.6%
Scotland
128
18
14.1%
128
18
14.1%
GB
26838
1561
5.8%
27182
1564
5.8%
Table 6a (ii): Number of animals and submissions tested in May 2021
Table 6b (ii): Number of animals and submissions tested in 2021 Up to end of May
Country
No.
animals
No of IFNg+
animals
% Positive
animals
No. samples
No of IFNg+
samples
% Positive
samples
England
109302
6092
5.6%
114111
6095
5.3%
Wales
31737
2083
6.6%
33355
2083
6.2%
Scotland
394
114
28.9%
867
114
13.1%
GB
141424
8289
5.9%
148333
8292
5.6%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Devon
PRV-SE
1
55
5
9.09 %
Leicestershire and Rutland
PRV-SP
2
2
0
0
Somerset excl North
PRV-SE
1
5
0
0
Wiltshire
PRV-SE
3
66
9
13.64 %
Total
7
128
14
10.94 %
*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 May 2022
Table 7b Number of private samples 2022
* Test type
Num
Submissions
Num
Samples
Num
Positives
Private
% Positive
Devon
PRV-SE
1
55
5
9.09 %
Dorset
PRV-SP
1
2
0
0
Hampshire
PRV-SE
1
7
2
28.57 %
Herefordshire
PRV-SP
1
1
0
0
Leicestershire and Rutland
PRV-SP
3
3
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
15
157
17
10.83 %

Country
County
Test Reason
Num
Submissions
Num Samples
Tested
Num Positive
Samples
% Positive
Not Known
BOV-POSTM
1
2
1
50.0%
Not Known
1
2
1
50.0%
Wales
Carmarthenshire
BOV-IR-EX
1
6
1
16.7%
Ceredigion
BOV-IR-C
2
33
2
6.1%
BOV-IR-EX
1
2
0
0
BOV-POSTM
1
13
4
30.8%
North East Wales
BOV-IR-C
5
44
3
6.8%
BOV-OTHER
2
43
0
0
BOV-P
1
156
3
1.9%
BOV-POSTM
13
25
7
28.0%
Pembrokeshire
BOV-IR-C
15
78
9
11.5%
BOV-IR-EX
2
13
5
38.5%
BOV-OTHER
1
118
2
1.7%
Powys
BOV-IR-C
3
13
1
7.7%
BOV-P
3
183
5
2.7%
South Wales
BOV-P
1
282
16
5.7%
Wales
51
1,009
58
5.7%
All GB
52
1,011
59
5.8 %
Table 8a Number of Cattle Antibody Tests May 2022
Table 8b Number of Cattle Antibody Tests 2022
Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
Not Known
BOV-POSTM
1
2
1
50.0%
Not Known
1
2
1
50.0%
Wales
Carmarthenshire
BOV-IR-C
11
102
32
31.4%
BOV-IR-EX
2
16
2
12.5%
BOV-OTHER
2
156
7
4.5%
Ceredigion
BOV-IR-C
11
107
10
9.3%
BOV-IR-EX
4
13
3
23.1%
BOV-POSTM
1
13
4
30.8%
North East Wales
BOV-IR-C
21
164
22
13.4%
BOV-IR-EX
2
14
4
28.6%
BOV-OTHER
3
60
0
0
BOV-P
2
576
46
8.0%
BOV-POSTM
50
121
27
22.3%
North West Wales
BOV-POSTM
2
2
0
0
Pembrokeshire
BOV-IR-C
71
566
131
23.1%
BOV-IR-EX
12
59
19
32.2%
BOV-OTHER
5
358
25
7.0%
BOV-P
5
291
20
6.9%
OTHER
1
30
0
0
Powys
BOV-IR-C
13
73
14
19.2%
BOV-P
4
206
5
2.4%
BOV-POSTM
1
1
0
0
South Wales
BOV-IR-C
6
36
5
13.9%

Country
County
Test Reason
Num Submissions Num Samples Tested Num Positive Samples % Positive
BOV-OTHER
2
30
5
16.7%
BOV-P
1
282
16
5.7%
Wales
232
3,276
397
12.1%
All GB
233
3,278
398
12.1 %