Monthly report: Survellience Project SB4008 IFNg tests for Bovine tuberculosis - May 2020
Source: environment.data.gov.uk (2022-01-18)

Interferon-Gamma Testing for Bovine Tuberculosis - Monthly Reports from April 2016. 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 tests for
bovine tuberculosis
(TC0651 and TC0751)
Number 165
Report Period 1st - 31st May 2020
Issued 10 June 2020

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.

Submission Reason
Explanation
Mandatory?
Possible Herd Slaughter
(PAR-HERD-S)
Parallel interferon-gamma 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 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 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
Rapid Testing of twice IR's
(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-CUL-N
Parallel 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 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)
Parallel Other
(PAR-OTHER)
Other parallel blood testing not covered in any
of the other scenarios
NO (APHA discretion)
'NSR' Herds (SER-NSR)
Modified serial 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 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 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)
Test Criteria

Num
samples
May 2020
%
Total 2020
%
Submissions
227
1339
Samples
Total (%)
17571
100.00 %
111140
100.00 %
England
13263
75.48 %
86580
77.90 %
Wales
3825
21.77 %
21415
19.27 %
Scotland
483
2.75 %
3145
2.83 %
Parallel Tests
PAR-CUL-N
6351
36.14 %
35395
31.85 %
PAR-CUL-P
170
0.97 %
5534
4.98 %
PAR-HERD-S
75
0.43 %
382
0.34 %
PAR-NEW-IN
8318
47.34 %
51133
46.01 %
PAR-OTHER
116
0.66 %
1871
1.68 %
PAR-PERSIS
2244
12.77 %
14219
12.79 %
PAR-RAPID
157
0.89 %
598
0.54 %
Total(% of all samples)
17431
99.20 %
109132
98.19 %
Serial/Extended Tests
SER-FLEXI
140
0.80 %
2008
1.81 %
SER-FRAUD
0
0.00 %
SER-NSR
0
0.00 %
Total(% of all samples)
140
0.80 %
2008
1.81 %
Total
17571
100.00 %
111140
100.00 %
Retests
Total (% of all samples)
1025
5.83 %
6955
6.26 %
England
786
4.47 %
5281
4.75 %
Wales
217
1.23 %
1505
1.35 %
Scotland
22
0.13 %
169
0.15 %
Resamples
Total (% of all samples)
749
4.26 %
5427
4.88 %
England
561
3.19 %
4085
3.68 %
Wales
170
0.97 %
1198
1.08 %
Scotland
18
0.10 %
144
0.13 %
Rejects
Total (% of all samples)
8
0.05 %
1766
1.59 %
England
4
0.02 %
1672
1.50 %
Wales
4
0.02 %
29
0.03 %
Scotland
0
0.00 %
65
0.06 %
Table 1. Monthly Totals for May 2020
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-CUL-N
PAR-CUL-P
PAR-HERD-S
PAR-NEW-IN
PAR-OTHER
PAR-PERSIS
PAR-RAPID
SER-FLEXI
Breakdown of
Reason for
submission
PAR-CUL-N
6351
36.1 %
PAR-CUL-P
170
1.0 %
PAR-HERD-S
75
0.4 %
PAR-NEW-IN
8318
47.3 %
PAR-OTHER
116
0.7 %
PAR-PERSIS
2244
12.8 %
PAR-RAPID
157
0.9 %
SER-FLEXI
140
0.8 %
Total
17571
100.00 %
Figure 1. Number of samples submitted in each category during May 2020
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

0
200
400
600
800
1000
1200
1400
1600
1800
2000
Wigtown
Perthshire
Kirkcudbright
Powys
Pembs
NE Wales
Gwynedd
Gwent
Ceredigion
Carms
W Yorks
Wiltshire
Warks
Staffs
Somerset excl N
Oxon
Lincs
Leics & Rut
Heref
Hampshire
Gloucs
E Sussex
Dorset
Devon
Derbyshire
Corn & Scilly
Cleveland
Cheshire
Berks
Scotland
Wales
England
SER-FLEXI
PAR-RAPID
PAR-PERSIS
PAR-OTHER
PAR-NEW-IN
PAR-HERD-S
PAR-CUL-P
PAR-CUL-N
Breakdown of
Samples
submitted by
County
Figure 2. Number of samples submitted in each category by County during May 2020
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

0
2000
4000
6000
8000
10000
12000
14000
Wigtown
Perthshire
Kirkcudbright
Dumfries & G
Berwickshire
Ayrshire
Argyll & Bute
W Glamorgan
S Wales
S Glamorgan
Powys
Pembs
NE Wales
Gwynedd
Gwent
Ceredigion
Carms
W Yorks
Wiltshire
Warks
Surrey
Staffs
Somerset excl N
Shropshire
Oxon
N Yorks
Notts
Northants
Norfolk
Lincs
Leics & Rut
Humberside
Heref
Hampshire
Gr Manchester
Gloucs
E Sussex
Dorset
Devon
Derbyshire
Cumbria
Corn & Scilly
Cleveland
Cheshire
Bucks
Berks
Scotland
Wales
England
SER-FLEXI
PAR-RAPID
PAR-PERSIS
PAR-OTHER
PAR-NEW-IN
PAR-HERD-S
PAR-CUL-P
PAR-CUL-N
Breakdown
of Samples
submitted
by County
Figure 3. Number of samples submitted in each category by County during 2020
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

Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
England - HRA
Corn & Scilly
PAR-CUL-N
14
1,801
10.25 %
74
4.11 %
1652
91.73 %
106
5.89 %
75
4.16 %
0
0.00 %
PAR-CUL-P
1
6
0.03 %
1
16.67 %
3
50.00 %
2
33.33 %
2
33.33 %
0
0.00 %
Devon
PAR-CUL-N
12
1,306
7.43 %
106
8.12 %
1124
86.06 %
100
7.66 %
73
5.59 %
3
0.23 %
PAR-CUL-P
1
164
0.93 %
0
0.00 %
160
97.56 %
6
3.66 %
4
2.44 %
0
0.00 %
Dorset
PAR-CUL-N
5
847
4.82 %
83
9.80 %
744
87.84 %
28
3.31 %
20
2.36 %
0
0.00 %
Gloucs
PAR-CUL-N
1
20
0.11 %
0
0.00 %
13
65.00 %
7
35.00 %
7
35.00 %
0
0.00 %
PAR-PERSIS
2
242
1.38 %
14
5.79 %
220
90.91 %
10
4.13 %
8
3.31 %
0
0.00 %
Heref
PAR-CUL-N
5
678
3.86 %
37
5.46 %
622
91.74 %
24
3.54 %
18
2.65 %
1
0.15 %
Somerset excl N
PAR-CUL-N
8
1,119
6.37 %
54
4.83 %
1048
93.66 %
28
2.50 %
17
1.52 %
0
0.00 %
PAR-PERSIS
1
7
0.04 %
0
0.00 %
5
71.43 %
3
42.86 %
2
28.57 %
0
0.00 %
Staffs
PAR-NEW-IN
12
1,884
10.72 %
56
2.97 %
1766
93.74 %
82
4.35 %
62
3.29 %
0
0.00 %
Wiltshire
PAR-CUL-N
5
580
3.30 %
16
2.76 %
526
90.69 %
55
9.48 %
38
6.55 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
2
27
0.15 %
0
0.00 %
24
88.89 %
4
14.81 %
3
11.11 %
0
0.00 %
Cheshire
PAR-NEW-IN
10
1,794
10.21 %
36
2.01 %
1677
93.48 %
113
6.30 %
81
4.52 %
0
0.00 %
Derbyshire
PAR-NEW-IN
16
1,022
5.82 %
50
4.89 %
903
88.36 %
87
8.51 %
69
6.75 %
0
0.00 %
E Sussex
PAR-NEW-IN
5
211
1.20 %
6
2.84 %
190
90.05 %
20
9.48 %
15
7.11 %
0
0.00 %
Hampshire
PAR-NEW-IN
1
317
1.80 %
6
1.89 %
299
94.32 %
26
8.20 %
12
3.79 %
0
0.00 %
Leics & Rut
PAR-NEW-IN
1
8
0.05 %
0
0.00 %
8
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Oxon
PAR-NEW-IN
7
1,026
5.84 %
66
6.43 %
912
88.89 %
73
7.12 %
48
4.68 %
0
0.00 %
Warks
PAR-NEW-IN
2
44
0.25 %
2
4.55 %
41
93.18 %
1
2.27 %
1
2.27 %
0
0.00 %
England - LRA
Cleveland
PAR-NEW-IN
1
50
0.28 %
2
4.00 %
48
96.00 %
1
2.00 %
0
0.00 %
0
0.00 %
Lincs
PAR-NEW-IN
1
71
0.40 %
7
9.86 %
61
85.92 %
4
5.63 %
3
4.23 %
0
0.00 %
W Yorks
PAR-NEW-IN
2
39
0.22 %
0
0.00 %
36
92.31 %
6
15.38 %
3
7.69 %
0
0.00 %
England
115
13263
75.48 %
616
4.64 %
12082
91.10 %
786
5.93 %
561
4.23 %
4
0.03 %
Wales - High TB
Carms
PAR-OTHER
4
42
0.24 %
5
11.90 %
37
88.10 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
6
694
3.95 %
52
7.49 %
608
87.61 %
44
6.34 %
34
4.90 %
0
0.00 %
Table 2a. Summary by County for May 2020
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
* 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 2020 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-RAPID
4
23
0.13 %
4
17.39 %
18
78.26 %
4
17.39 %
1
4.35 %
0
0.00 %
SER-FLEXI
2
54
0.31 %
14
25.93 %
37
68.52 %
1
1.85 %
1
1.85 %
2
3.70 %
Ceredigion
PAR-OTHER
5
15
0.09 %
0
0.00 %
14
93.33 %
1
6.67 %
1
6.67 %
0
0.00 %
PAR-RAPID
2
7
0.04 %
2
28.57 %
5
71.43 %
0
0.00 %
0
0.00 %
0
0.00 %
Gwent
PAR-PERSIS
1
533
3.03 %
32
6.00 %
493
92.50 %
11
2.06 %
7
1.31 %
1
0.19 %
Pembs
PAR-HERD-S
2
75
0.43 %
5
6.67 %
62
82.67 %
8
10.67 %
8
10.67 %
0
0.00 %
PAR-OTHER
7
51
0.29 %
7
13.73 %
44
86.27 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
10
387
2.20 %
33
8.53 %
337
87.08 %
22
5.68 %
17
4.39 %
0
0.00 %
PAR-RAPID
15
94
0.53 %
19
20.21 %
73
77.66 %
3
3.19 %
2
2.13 %
0
0.00 %
SER-FLEXI
1
34
0.19 %
0
0.00 %
32
94.12 %
2
5.88 %
2
5.88 %
0
0.00 %
Powys
PAR-NEW-IN
1
36
0.20 %
2
5.56 %
34
94.44 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
7
291
1.66 %
18
6.19 %
262
90.03 %
14
4.81 %
10
3.44 %
1
0.34 %
PAR-RAPID
5
23
0.13 %
3
13.04 %
19
82.61 %
2
8.70 %
1
4.35 %
0
0.00 %
Wales - Intermediate TB
Carms
PAR-OTHER
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
NE Wales
PAR-NEW-IN
13
905
5.15 %
27
2.98 %
832
91.93 %
58
6.41 %
46
5.08 %
0
0.00 %
PAR-OTHER
3
6
0.03 %
0
0.00 %
5
83.33 %
1
16.67 %
1
16.67 %
0
0.00 %
PAR-PERSIS
1
68
0.39 %
4
5.88 %
61
89.71 %
4
5.88 %
3
4.41 %
0
0.00 %
PAR-RAPID
1
8
0.05 %
3
37.50 %
5
62.50 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
1
52
0.30 %
1
1.92 %
51
98.08 %
1
1.92 %
0
0.00 %
0
0.00 %
Powys
PAR-NEW-IN
4
145
0.83 %
5
3.45 %
131
90.34 %
9
6.21 %
9
6.21 %
0
0.00 %
PAR-OTHER
1
1
0.01 %
0
0.00 %
1
100.00 %
0
0.00 %
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 %
Wales - Low TB
Gwynedd
PAR-NEW-IN
3
106
0.60 %
1
0.94 %
101
95.28 %
4
3.77 %
4
3.77 %
0
0.00 %
NE Wales
PAR-NEW-IN
3
172
0.98 %
3
1.74 %
146
84.88 %
28
16.28 %
23
13.37 %
0
0.00 %
Wales
104
3825
21.77 %
240
6.27 %
3411
89.18 %
217
5.67 %
170
4.44 %
4
0.10 %
Scotland - Scotland
Kirkcudbright
PAR-NEW-IN
4
98
0.56 %
2
2.04 %
91
92.86 %
7
7.14 %
5
5.10 %
0
0.00 %
PAR-PERSIS
1
22
0.13 %
0
0.00 %
22
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Perthshire
PAR-NEW-IN
2
357
2.03 %
0
0.00 %
345
96.64 %
14
3.92 %
12
3.36 %
0
0.00 %
PAR-HERD-S: potential herd slaughter, PAR-P-CONF (PAR-PERSIS from 1 April 2017): persistent TB breakdown OTFW, PAR-LOW-IN (PAR-NEW-IN from 1 April 2017): parallel low incidence, PAR-RAPID: rapid
testing of twice IRs, PAR-CUL-N: new infection in cull area, PAR-CUL-P: persistent infection in cull area, PAR-OTHER: parallel other, SER-FLEXI: flexible extended test in confirmed herds with concurrent Johne’s
infection/vaccination, SER-NSR: serial non-specific reactor, SER-FRAUD: serial potential fraud, SER-OTHER: serial other
* 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 2020 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Wigtown
PAR-NEW-IN
1
6
0.03 %
0
0.00 %
5
83.33 %
1
16.67 %
1
16.67 %
0
0.00 %
Scotland
8
483
2.75 %
2
0.41 %
463
95.86 %
22
4.55 %
18
3.73 %
0
0.00 %
Grand Total
Sum:
227
17571
858
15956
1025
749
8
*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
* 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
Corn & Scilly
PAR-CUL-N
47
6,215
5.59 %
217
3.49 %
5739
92.34 %
352
5.66 %
259
4.17 %
0
0.00 %
PAR-CUL-P
7
1,802
1.62 %
46
2.55 %
xx-xxxx-xxxx
94.28 %
73
4.05 %
57
3.16 %
0
0.00 %
PAR-PERSIS
17
3,332
3.00 %
135
4.05 %
3079
92.41 %
171
5.13 %
117
3.51 %
1
0.03 %
Devon
PAR-CUL-N
110
12,220
11.00 %
539
4.41 %
10955
89.65 %
775
6.34 %
619
5.07 %
107
0.88 %
PAR-CUL-P
8
890
0.80 %
34
3.82 %
793
89.10 %
78
8.76 %
63
7.08 %
0
0.00 %
PAR-PERSIS
1
92
0.08 %
8
8.70 %
80
86.96 %
8
8.70 %
4
4.35 %
0
0.00 %
SER-FLEXI
3
50
0.04 %
2
4.00 %
46
92.00 %
2
4.00 %
2
4.00 %
0
0.00 %
Dorset
PAR-CUL-N
25
3,287
2.96 %
243
7.39 %
2767
84.18 %
160
4.87 %
126
3.83 %
151
4.59 %
PAR-CUL-P
7
1,972
1.77 %
203
10.29 %
1674
84.89 %
134
6.80 %
94
4.77 %
1
0.05 %
PAR-NEW-IN
2
167
0.15 %
5
2.99 %
156
93.41 %
11
6.59 %
6
3.59 %
0
0.00 %
SER-FLEXI
5
740
0.67 %
48
6.49 %
674
91.08 %
30
4.05 %
18
2.43 %
0
0.00 %
Gloucs
PAR-CUL-N
26
2,429
2.19 %
125
5.15 %
2140
88.10 %
196
8.07 %
164
6.75 %
0
0.00 %
PAR-PERSIS
2
242
0.22 %
14
5.79 %
220
90.91 %
10
4.13 %
8
3.31 %
0
0.00 %
Heref
PAR-CUL-N
14
1,555
1.40 %
70
4.50 %
1434
92.22 %
67
4.31 %
47
3.02 %
4
0.26 %
PAR-NEW-IN
3
248
0.22 %
10
4.03 %
207
83.47 %
38
15.32 %
30
12.10 %
1
0.40 %
PAR-PERSIS
2
213
0.19 %
9
4.23 %
172
80.75 %
32
15.02 %
32
15.02 %
0
0.00 %
Shropshire
PAR-CUL-N
3
416
0.37 %
14
3.37 %
385
92.55 %
21
5.05 %
15
3.61 %
2
0.48 %
PAR-PERSIS
7
1,015
0.91 %
60
5.91 %
899
88.57 %
65
6.40 %
54
5.32 %
2
0.20 %
SER-FLEXI
3
389
0.35 %
16
4.11 %
352
90.49 %
27
6.94 %
21
5.40 %
0
0.00 %
Somerset excl N
PAR-CUL-N
49
4,346
3.91 %
173
3.98 %
4020
92.50 %
180
4.14 %
125
2.88 %
28
0.64 %
PAR-CUL-P
1
261
0.23 %
13
4.98 %
238
91.19 %
13
4.98 %
10
3.83 %
0
0.00 %
PAR-PERSIS
3
293
0.26 %
25
8.53 %
258
88.05 %
14
4.78 %
10
3.41 %
0
0.00 %
Staffs
PAR-CUL-N
6
968
0.87 %
37
3.82 %
729
75.31 %
51
5.27 %
47
4.86 %
155
16.01 %
PAR-NEW-IN
12
1,884
1.70 %
56
2.97 %
1766
93.74 %
82
4.35 %
62
3.29 %
0
0.00 %
Wiltshire
PAR-CUL-N
31
3,545
3.19 %
116
3.27 %
3205
90.41 %
281
7.93 %
210
5.92 %
14
0.39 %
PAR-CUL-P
4
609
0.55 %
37
6.08 %
547
89.82 %
38
6.24 %
25
4.11 %
0
0.00 %
Table 2b. Summary by County for 2020
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
* 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 2020 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-PERSIS
2
104
0.09 %
5
4.81 %
93
89.42 %
7
6.73 %
6
5.77 %
0
0.00 %
SER-FLEXI
2
45
0.04 %
4
8.89 %
41
91.11 %
0
0.00 %
0
0.00 %
0
0.00 %
England - Edge
Berks
PAR-NEW-IN
16
1,743
1.57 %
37
2.12 %
1587
91.05 %
155
8.89 %
119
6.83 %
0
0.00 %
Bucks
PAR-NEW-IN
9
970
0.87 %
53
5.46 %
836
86.19 %
98
10.10 %
81
8.35 %
0
0.00 %
Cheshire
PAR-CUL-N
2
51
0.05 %
1
1.96 %
42
82.35 %
10
19.61 %
8
15.69 %
0
0.00 %
PAR-NEW-IN
78
12,830
11.54 %
283
2.21 %
11945
93.10 %
695
5.42 %
552
4.30 %
50
0.39 %
Derbyshire
PAR-NEW-IN
70
7,767
6.99 %
273
3.51 %
6576
84.67 %
573
7.38 %
486
6.26 %
432
5.56 %
E Sussex
PAR-NEW-IN
16
1,324
1.19 %
48
3.63 %
1221
92.22 %
68
5.14 %
55
4.15 %
0
0.00 %
Hampshire
PAR-CUL-N
2
363
0.33 %
15
4.13 %
327
90.08 %
39
10.74 %
19
5.23 %
2
0.55 %
PAR-NEW-IN
9
1,172
1.05 %
27
2.30 %
1086
92.66 %
78
6.66 %
59
5.03 %
0
0.00 %
Leics & Rut
PAR-NEW-IN
15
1,236
1.11 %
39
3.16 %
1132
91.59 %
77
6.23 %
49
3.96 %
16
1.29 %
Northants
PAR-NEW-IN
7
334
0.30 %
9
2.69 %
306
91.62 %
24
7.19 %
19
5.69 %
0
0.00 %
Notts
PAR-NEW-IN
1
75
0.07 %
2
2.67 %
72
96.00 %
2
2.67 %
1
1.33 %
0
0.00 %
Oxon
PAR-NEW-IN
44
4,515
4.06 %
208
4.61 %
3808
84.34 %
295
6.53 %
211
4.67 %
288
6.38 %
Warks
PAR-NEW-IN
30
2,926
2.63 %
77
2.63 %
2623
89.64 %
158
5.40 %
122
4.17 %
104
3.55 %
England - LRA
Cleveland
PAR-NEW-IN
1
50
0.04 %
2
4.00 %
48
96.00 %
1
2.00 %
0
0.00 %
0
0.00 %
Cumbria
PAR-NEW-IN
1
30
0.03 %
0
0.00 %
29
96.67 %
2
6.67 %
1
3.33 %
0
0.00 %
Gr Manchester
PAR-NEW-IN
5
268
0.24 %
1
0.37 %
54
20.15 %
3
1.12 %
3
1.12 %
210
78.36 %
Humberside
PAR-NEW-IN
2
78
0.07 %
7
8.97 %
66
84.62 %
7
8.97 %
5
6.41 %
0
0.00 %
Lincs
PAR-NEW-IN
4
247
0.22 %
14
5.67 %
223
90.28 %
11
4.45 %
10
4.05 %
0
0.00 %
Norfolk
PAR-NEW-IN
4
49
0.04 %
1
2.04 %
29
59.18 %
6
12.24 %
6
12.24 %
13
26.53 %
N Yorks
PAR-NEW-IN
7
755
0.68 %
7
0.93 %
628
83.18 %
39
5.17 %
29
3.84 %
91
12.05 %
Surrey
PAR-NEW-IN
3
429
0.39 %
17
3.96 %
396
92.31 %
18
4.20 %
16
3.73 %
0
0.00 %
W Yorks
PAR-NEW-IN
2
39
0.04 %
0
0.00 %
36
92.31 %
6
15.38 %
3
7.69 %
0
0.00 %
England
730
86580
77.90 %
3385
3.91 %
77438
89.44 %
5281
6.10 %
4085
4.72 %
1672
1.93 %
Wales - High TB
Carms
PAR-HERD-S
6
234
0.21 %
19
8.12 %
207
88.46 %
15
6.41 %
8
3.42 %
0
0.00 %
PAR-NEW-IN
1
8
0.01 %
2
25.00 %
6
75.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
18
276
0.25 %
36
13.04 %
223
80.80 %
19
6.88 %
17
6.16 %
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
* 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 2020 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
PAR-PERSIS
30
2,241
2.02 %
161
7.18 %
1993
88.93 %
117
5.22 %
85
3.79 %
2
0.09 %
PAR-RAPID
32
142
0.13 %
25
17.61 %
107
75.35 %
17
11.97 %
10
7.04 %
0
0.00 %
SER-FLEXI
4
81
0.07 %
21
25.93 %
57
70.37 %
2
2.47 %
1
1.23 %
2
2.47 %
Ceredigion
PAR-HERD-S
1
4
0.00 %
0
0.00 %
4
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
13
41
0.04 %
0
0.00 %
37
90.24 %
4
9.76 %
4
9.76 %
0
0.00 %
PAR-PERSIS
16
429
0.39 %
19
4.43 %
390
90.91 %
22
5.13 %
18
4.20 %
2
0.47 %
PAR-RAPID
15
63
0.06 %
19
30.16 %
40
63.49 %
4
6.35 %
4
6.35 %
0
0.00 %
Gwent
PAR-HERD-S
1
3
0.00 %
1
33.33 %
2
66.67 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
14
1,074
0.97 %
61
5.68 %
988
91.99 %
43
4.00 %
24
2.23 %
1
0.09 %
PAR-RAPID
10
22
0.02 %
6
27.27 %
16
72.73 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
3
133
0.12 %
17
12.78 %
113
84.96 %
7
5.26 %
3
2.26 %
0
0.00 %
Pembs
PAR-HERD-S
4
80
0.07 %
6
7.50 %
65
81.25 %
9
11.25 %
9
11.25 %
0
0.00 %
PAR-OTHER
43
745
0.67 %
89
11.95 %
625
83.89 %
40
5.37 %
31
4.16 %
0
0.00 %
PAR-PERSIS
64
2,952
2.66 %
199
6.74 %
2558
86.65 %
225
7.62 %
188
6.37 %
7
0.24 %
PAR-RAPID
54
254
0.23 %
55
21.65 %
189
74.41 %
10
3.94 %
10
3.94 %
0
0.00 %
SER-FLEXI
4
71
0.06 %
0
0.00 %
67
94.37 %
6
8.45 %
4
5.63 %
0
0.00 %
Powys
PAR-HERD-S
8
31
0.03 %
3
9.68 %
28
90.32 %
2
6.45 %
0
0.00 %
0
0.00 %
PAR-NEW-IN
1
36
0.03 %
2
5.56 %
34
94.44 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-OTHER
9
747
0.67 %
34
4.55 %
639
85.54 %
82
10.98 %
74
9.91 %
0
0.00 %
PAR-PERSIS
35
1,337
1.20 %
78
5.83 %
1110
83.02 %
159
11.89 %
140
10.47 %
9
0.67 %
PAR-RAPID
18
61
0.05 %
8
13.11 %
51
83.61 %
3
4.92 %
2
3.28 %
0
0.00 %
SER-FLEXI
10
212
0.19 %
17
8.02 %
186
87.74 %
19
8.96 %
9
4.25 %
0
0.00 %
S Wales
PAR-PERSIS
1
69
0.06 %
3
4.35 %
64
92.75 %
6
8.70 %
2
2.90 %
0
0.00 %
PAR-RAPID
1
2
0.00 %
1
50.00 %
1
50.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
1
36
0.03 %
0
0.00 %
36
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
W Glamorgan
PAR-OTHER
1
3
0.00 %
0
0.00 %
0
0.00 %
3
100.00 %
3
100.00 %
0
0.00 %
PAR-PERSIS
2
14
0.01 %
0
0.00 %
12
85.71 %
3
21.43 %
2
14.29 %
0
0.00 %
SER-FLEXI
1
9
0.01 %
1
11.11 %
8
88.89 %
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
* 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 2020 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Wales - Intermediate TB
Carms
PAR-HERD-S
3
30
0.03 %
5
16.67 %
24
80.00 %
3
10.00 %
1
3.33 %
0
0.00 %
PAR-OTHER
5
19
0.02 %
3
15.79 %
15
78.95 %
1
5.26 %
1
5.26 %
0
0.00 %
PAR-PERSIS
3
198
0.18 %
23
11.62 %
167
84.34 %
8
4.04 %
8
4.04 %
0
0.00 %
PAR-RAPID
3
3
0.00 %
2
66.67 %
1
33.33 %
0
0.00 %
0
0.00 %
0
0.00 %
Ceredigion
PAR-PERSIS
2
7
0.01 %
4
57.14 %
2
28.57 %
1
14.29 %
1
14.29 %
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
2
48
0.04 %
6
12.50 %
40
83.33 %
2
4.17 %
2
4.17 %
0
0.00 %
NE Wales
PAR-NEW-IN
49
4,990
4.49 %
157
3.15 %
4519
90.56 %
364
7.29 %
314
6.29 %
0
0.00 %
PAR-OTHER
4
21
0.02 %
2
9.52 %
18
85.71 %
2
9.52 %
1
4.76 %
0
0.00 %
PAR-PERSIS
11
545
0.49 %
65
11.93 %
462
84.77 %
24
4.40 %
18
3.30 %
0
0.00 %
PAR-RAPID
8
34
0.03 %
6
17.65 %
26
76.47 %
2
5.88 %
2
5.88 %
0
0.00 %
SER-FLEXI
8
181
0.16 %
7
3.87 %
165
91.16 %
13
7.18 %
7
3.87 %
2
1.10 %
Powys
PAR-NEW-IN
11
909
0.82 %
18
1.98 %
846
93.07 %
54
5.94 %
44
4.84 %
1
0.11 %
PAR-OTHER
2
13
0.01 %
0
0.00 %
11
84.62 %
3
23.08 %
2
15.38 %
0
0.00 %
PAR-RAPID
1
2
0.00 %
0
0.00 %
2
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
S Glamorgan
PAR-RAPID
1
1
0.00 %
1
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
0
0.00 %
SER-FLEXI
3
13
0.01 %
5
38.46 %
8
61.54 %
0
0.00 %
0
0.00 %
0
0.00 %
Wales - Low TB
Gwynedd
PAR-NEW-IN
18
1,181
1.06 %
14
1.19 %
1119
94.75 %
67
5.67 %
45
3.81 %
3
0.25 %
PAR-OTHER
1
1
0.00 %
0
0.00 %
0
0.00 %
1
100.00 %
1
100.00 %
0
0.00 %
PAR-RAPID
2
12
0.01 %
0
0.00 %
9
75.00 %
3
25.00 %
3
25.00 %
0
0.00 %
NE Wales
PAR-NEW-IN
13
1,750
1.57 %
22
1.26 %
1636
93.49 %
130
7.43 %
92
5.26 %
0
0.00 %
PAR-OTHER
1
5
0.00 %
0
0.00 %
5
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
PAR-PERSIS
1
40
0.04 %
0
0.00 %
32
80.00 %
10
25.00 %
8
20.00 %
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
575
21415
19.27 %
1224
5.72 %
18964
88.55 %
1505
7.03 %
1198
5.59 %
29
0.14 %
Scotland - Scotland
Argyll & Bute
PAR-NEW-IN
7
588
0.53 %
32
5.44 %
455
77.38 %
41
6.97 %
36
6.12 %
65
11.05 %
Ayrshire
PAR-NEW-IN
3
383
0.34 %
1
0.26 %
359
93.73 %
30
7.83 %
23
6.01 %
0
0.00 %
Berwickshire
PAR-NEW-IN
2
78
0.07 %
8
10.26 %
62
79.49 %
8
10.26 %
8
10.26 %
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
* 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 2020 Cont.
Country
County
Submission
Reasons*
No.
subs
Samples
Gamma Positive
Gamma Negatives
Retest*
Resample
Reject
n
% of total
n
%
n
%
n
%
Dumfries & G
PAR-NEW-IN
6
849
0.76 %
12
1.41 %
802
94.46 %
38
4.48 %
35
4.12 %
0
0.00 %
Kirkcudbright
PAR-NEW-IN
7
204
0.18 %
7
3.43 %
190
93.14 %
10
4.90 %
7
3.43 %
0
0.00 %
PAR-PERSIS
1
22
0.02 %
0
0.00 %
22
100.00 %
0
0.00 %
0
0.00 %
0
0.00 %
Perthshire
PAR-NEW-IN
2
357
0.32 %
0
0.00 %
345
96.64 %
14
3.92 %
12
3.36 %
0
0.00 %
Wigtown
PAR-NEW-IN
6
664
0.60 %
17
2.56 %
624
93.98 %
28
4.22 %
23
3.46 %
0
0.00 %
Scotland
34
3145
2.83 %
77
2.45 %
2859
90.91 %
169
5.37 %
144
4.58 %
65
2.07 %
Grand Total
Sum:
xx-xxxx-xxxx
4686
99261
6955
5427
1766
*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
* 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 2020
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
115
13263
100.0%
616
4.6%
12082
91.1%
786
5.9%
561
4.2%
4
0.0%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
115
13263
100.0%
616
4.6%
12082
91.1%
786
5.9%
561
4.2%
4
0.0%
Scotland
Parallel
8
483
100.0%
2
0.4%
463
95.9%
22
4.6%
18
3.7%
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
8
483
100.0%
2
0.4%
463
95.9%
22
4.6%
18
3.7%
0
0.0 %
Wales
Parallel
100
3685
96.3%
225
6.1%
3291
89.3%
213
5.8%
167
4.5%
2
0.1%
Serial/Extended
4
140
3.7%
15
10.7%
120
85.7%
4
2.9%
3
2.1%
2
1.4%
Total
104
3825
100.0%
240
6.3%
3411
89.2%
217
5.7%
170
4.4%
4
0.1%
GB
Parallel
223
17431
99.2%
843
4.8%
15836
90.8%
1021
5.9%
746
4.3%
6
0.0%
Serial/Extended
4
140
0.8%
15
10.7%
120
85.7%
4
2.9%
3
2.1%
2
1.4%
Total
227
17571
100.0%
858
4.9%
15956
90.8%
1025
5.8%
749
4.3%
8
0.0%
115.00
104.00
8.00
* 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 2020)
Country
Protocol
No
submissions Samples
Positive
Negatives
Retest*
Resample
Reject
n
% of total n
%
n
%
n
%
n
%
n
%
England
Parallel
717
85356
98.6%
3315
3.9%
76325
89.4%
5222
6.1%
4044
4.7%
1672
2.0%
Serial/Extended
13
1224
1.4%
70
5.7%
1113
90.9%
59
4.8%
41
3.3%
0
0.0 %
Total
730
86580
100.0%
3385
3.9%
77438
89.4%
5281
6.1%
4085
4.7%
1672
1.9%
Scotland
Parallel
34
3145
100.0%
77
2.4%
2859
90.9%
169
5.4%
144
4.6%
65
2.1%
Serial/Extended
0
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
0
0.0 %
Total
34
3145
100.0%
77
2.4%
2859
90.9%
169
5.4%
144
4.6%
65
2.1%
Wales
Parallel
539
20631
96.3%
1150
5.6%
18284
88.6%
1456
7.1%
1172
5.7%
25
0.1%
Serial/Extended
36
784
3.7%
74
9.4%
680
86.7%
49
6.3%
26
3.3%
4
0.5%
Total
575
21415
100.0%
1224
5.7%
18964
88.6%
1505
7.0%
1198
5.6%
29
0.1%
GB
Parallel
1290 109132
98.2%
4542
4.2%
97468
89.3%
6847
6.3%
5360
4.9%
1762
1.6%
Serial/Extended
49
2008
1.8%
144
7.2%
1793
89.3%
108
5.4%
67
3.3%
4
0.2%
Total
xx-xxxx-xxxx
100.0%
4686
4.2%
99261
89.3%
6955
6.3%
5427
4.9%
1766
1.6%
730.00
575.00
34.00
* 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
4
140
0.8%
15
10.7%
120
85.7%
4
2.9 %
3
2.1 %
2
1.4 %
Parallel - Herd or Group Slaughter
2
75
0.4%
5
6.7%
62
82.7%
8
10.7 %
8
10.7 %
0
Parallel New Infection
91
8318
47.3%
271
3.3%
7650
92.0%
538
6.5 %
397
4.8 %
0
Parallel - new infection cull area
50
6351
36.1%
370
5.8%
5729
90.2%
348
5.5 %
248
3.9 %
4
0.1 %
Parallel - Other
21
116
0.7%
12
10.3%
102
87.9%
2
1.7 %
2
1.7 %
0
Parallel Persistent Infection
29
2244
12.8%
153
6.8%
2008
89.5%
108
4.8 %
81
3.6 %
2
0.1 %
Parallel - persistent infection cull area
2
170
1.0%
1
0.6%
163
95.9%
8
4.7 %
6
3.5 %
0
Parallel - Rapid Testing Two-times IRs
28
157
0.9%
31
19.7%
122
77.7%
9
5.7 %
4
2.5 %
0
Total
227
17571
100.0%
858
4.9%
15956
90.8%
1025
5.8 %
749
4.3 %
8
0.0 %
Table 4a. Summaryof IFN Gamma results by submission reason (May 2020)
England - HRA
Parallel New Infection
12
1884
10.7%
56
3.0%
1766
93.7%
82
4.4 %
62
3.3 %
0
Parallel - new infection cull area
50
6351
36.1%
370
5.8%
5729
90.2%
348
5.5 %
248
3.9 %
4
0.1 %
Parallel Persistent Infection
3
249
1.4%
14
5.6%
225
90.4%
13
5.2 %
10
4.0 %
0
Parallel - persistent infection cull area
2
170
1.0%
1
0.6%
163
95.9%
8
4.7 %
6
3.5 %
0
England - HRA
67
8654
49.3%
441
5.1%
7883
91.1%
451
5.2 %
326
3.8 %
4
0.0 %
England - Edge
Parallel New Infection
44
4449
25.3%
166
3.7%
4054
91.1%
324
7.3 %
229
5.1 %
0
England - Edge
44
4449
25.3%
166
3.7%
4054
91.1%
324
7.3 %
229
5.1 %
0
England - LRA
Parallel New Infection
4
160
0.9%
9
5.6%
145
90.6%
11
6.9 %
6
3.8 %
0
England - LRA
4
160
0.9%
9
5.6%
145
90.6%
11
6.9 %
6
3.8 %
0
Wales - High TB
Extended Flexible IFN-GAMMA test
3
88
0.5%
14
15.9%
69
78.4%
3
3.4 %
3
3.4 %
2
2.3 %
Parallel - Herd or Group Slaughter
2
75
0.4%
5
6.7%
62
82.7%
8
10.7 %
8
10.7 %
0
Parallel New Infection
1
36
0.2%
2
5.6%
34
94.4%
0
0
0
Parallel - Other
16
108
0.6%
12
11.1%
95
88.0%
1
0.9 %
1
0.9 %
0
Parallel Persistent Infection
24
1905
10.8%
135
7.1%
1700
89.2%
91
4.8 %
68
3.6 %
2
0.1 %
Parallel - Rapid Testing Two-times IRs
26
147
0.8%
28
19.0%
115
78.2%
9
6.1 %
4
2.7 %
0
Wales - High TB
72
2359
13.4%
196
8.3%
2075
88.0%
112
4.7 %
84
3.6 %
4
0.2 %
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
1
52
0.3%
1
1.9%
51
98.1%
1
1.9 %
0
0
Parallel New Infection
17
1050
6.0%
32
3.0%
963
91.7%
67
6.4 %
55
5.2 %
0
Parallel - Other
5
8
0.0%
0
0.0 %
7
87.5%
1
12.5 %
1
12.5 %
0
Parallel Persistent Infection
1
68
0.4%
4
5.9%
61
89.7%
4
5.9 %
3
4.4 %
0
Parallel - Rapid Testing Two-times IRs
2
10
0.1%
3
30.0%
7
70.0%
0
0
0
Wales - Intermediate TB
26
1188
6.8%
40
3.4%
1089
91.7%
73
6.1 %
59
5.0 %
0
Wales - Low TB
Parallel New Infection
6
278
1.6%
4
1.4%
247
88.8%
32
11.5 %
27
9.7 %
0
Wales - Low TB
6
278
1.6%
4
1.4%
247
88.8%
32
11.5 %
27
9.7 %
0
Scotland - Scotland
Parallel New Infection
7
461
2.6%
2
0.4%
441
95.7%
22
4.8 %
18
3.9 %
0
Parallel Persistent Infection
1
22
0.1%
0
0.0 %
22
100.0%
0
0
0
Scotland - Scotland
8
483
2.7%
2
0.4%
463
95.9%
22
4.6 %
18
3.7 %
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
49
2008
1.8%
144
7.2%
1793
89.3%
108
5.4 %
67
3.3 %
4
0.2 %
Parallel - Herd or Group Slaughter
23
382
0.3%
34
8.9%
330
86.4%
29
7.6 %
18
4.7 %
0
Parallel New Infection
467
51133
46.0%
1468
2.9%
45827
89.6%
3231
6.3 %
2564
5.0 %
1274
2.5 %
Parallel - new infection cull area
315
35395
31.8%
1550
4.4%
31743
89.7%
2132
6.0 %
1639
4.6 %
463
1.3 %
Parallel - Other
97
1871
1.7%
164
8.8%
1573
84.1%
155
8.3 %
134
7.2 %
0
Parallel Persistent Infection
214
14219
12.8%
869
6.1%
12601
88.6%
925
6.5 %
725
5.1 %
24
0.2 %
Parallel - persistent infection cull area
27
5534
5.0%
333
6.0%
4951
89.5%
336
6.1 %
249
4.5 %
1
0.0 %
Parallel - Rapid Testing Two-times IRs
147
598
0.5%
124
20.7%
443
74.1%
39
6.5 %
31
5.2 %
0
Total
xx-xxxx-xxxx
100.0%
4686
4.2%
99261
89.3%
6955
6.3 %
5427
4.9 %
1766
1.6 %
Table 4b. Summary of IFN Gamma results by submission reason (Total 2020)
England - HRA
Extended Flexible IFN-GAMMA test
13
1224
1.1%
70
5.7%
1113
90.9%
59
4.8 %
41
3.3 %
0
Parallel New Infection
17
2299
2.1%
71
3.1%
2129
92.6%
131
5.7 %
98
4.3 %
1
0.0 %
Parallel - new infection cull area
311
34981
31.5%
1534
4.4%
31374
89.7%
2083
6.0 %
1612
4.6 %
461
1.3 %
Parallel Persistent Infection
34
5291
4.8%
256
4.8%
4801
90.7%
307
5.8 %
231
4.4 %
3
0.1 %
Parallel - persistent infection cull area
27
5534
5.0%
333
6.0%
4951
89.5%
336
6.1 %
249
4.5 %
1
0.0 %
England - Edge
Parallel New Infection
295
34892
31.4%
1056
3.0%
31192
89.4%
2223
6.4 %
1754
5.0 %
890
2.6 %
Parallel - new infection cull area
4
414
0.4%
16
3.9%
369
89.1%
49
11.8 %
27
6.5 %
2
0.5 %
England - LRA
Parallel New Infection
29
1945
1.8%
49
2.5%
1509
77.6%
93
4.8 %
73
3.8 %
314
16.1 %
England
730
86580
77.9%
3385
3.9%
77438
89.4%
5281
6.1 %
4085
4.7 %
1672
1.9 %
Wales - High TB
Extended Flexible IFN-GAMMA test
23
542
0.5%
56
10.3%
467
86.2%
34
6.3 %
17
3.1 %
2
0.4 %
Parallel - Herd or Group Slaughter
20
352
0.3%
29
8.2%
306
86.9%
26
7.4 %
17
4.8 %
0
Parallel New Infection
2
44
0.0%
4
9.1%
40
90.9%
0
0
0
Parallel - Other
84
1812
1.6%
159
8.8%
1524
84.1%
148
8.2 %
129
7.1 %
0
Parallel Persistent Infection
162
8116
7.3%
521
6.4%
7115
87.7%
575
7.1 %
459
5.7 %
21
0.3 %
Parallel - Rapid Testing Two-times IRs
130
544
0.5%
114
21.0%
404
74.3%
34
6.3 %
26
4.8 %
0
Wales - Intermediate TB
Extended Flexible IFN-GAMMA test
13
242
0.2%
18
7.4%
213
88.0%
15
6.2 %
9
3.7 %
2
0.8 %
Parallel - Herd or Group Slaughter
3
30
0.0%
5
16.7%
24
80.0%
3
10.0 %
1
3.3 %
0

Table 4b. Summaryof IFN Gamma results by submission reason (Total 2020) Cont.
Parallel New Infection
60
5899
5.3%
175
3.0%
5365
90.9%
418
7.1 %
358
6.1 %
1
0.0 %
Parallel - Other
11
53
0.0%
5
9.4%
44
83.0%
6
11.3 %
4
7.5 %
0
Parallel Persistent Infection
16
750
0.7%
92
12.3%
631
84.1%
33
4.4 %
27
3.6 %
0
Parallel - Rapid Testing Two-times IRs
14
41
0.0%
10
24.4%
29
70.7%
2
4.9 %
2
4.9 %
0
Wales - Low TB
Parallel New Infection
31
2931
2.6%
36
1.2%
2755
94.0%
197
6.7 %
137
4.7 %
3
0.1 %
Parallel - Other
2
6
0.0%
0
0.0 %
5
83.3%
1
16.7 %
1
16.7 %
0
Parallel Persistent Infection
1
40
0.0%
0
0.0 %
32
80.0%
10
25.0 %
8
20.0 %
0
Parallel - Rapid Testing Two-times IRs
3
13
0.0%
0
0.0 %
10
76.9%
3
23.1 %
3
23.1 %
0
Wales
575
21415
19.3%
1224
5.7%
18964
88.6%
1505
7.0 %
1198
5.6 %
29
0.1 %
Scotland - Scotland
Parallel New Infection
33
3123
2.8%
77
2.5%
2837
90.8%
169
5.4 %
144
4.6 %
65
2.1 %
Parallel Persistent Infection
1
22
0.0%
0
0.0 %
22
100.0%
0
0
0
Scotland
34
3145
2.8%
77
2.4%
2859
90.9%
169
5.4 %
144
4.6 %
65
2.1 %

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
2019 June
287
26287
159
964
5
13
0
0
0
0
94
1
0
4
0
773
0
73
0
0
July
316
32549
201
1219
1
13
0
0
0
0
108
3
0
12
0
1020
0
58
0
2
August
262
21887
126
724
1
8
0
0
0
0
84
1
0
6
0
570
0
52
0
0
September
245
25317
134
693
1
7
0
0
0
0
94
1
0
3
0
542
0
45
0
0
October
298
26690
154
743
0
0
0
0
0
58
1
0
5
0
604
0
71
0
3
November
272
30186
169
1080
14
0
0
0
0
72
5
0
15
0
910
0
61
0
1
December
234
25192
138
904
2
0
0
0
0
0
87
2
0
4
0
759
0
49
0
1
2020 January
343
31274
227
1367
1
7
0
0
0
0
178
3
0
8
0
1110
1
57
0
0
February
323
33146
192
1289
1
21
0
0
0
0
187
1
0
6
2
982
0
89
0
0
March
262
18221
147
764
1
27
0
0
0
0
100
0
2
3
3
591
0
35
0
2
April
184
10928
96
408
2
10
0
0
0
0
50
0
1
2
0
307
34
0
0
2
May
227
17571
127
858
253
389
0
0
0
0
3
0
2
0
0
106
18
0
0
0
Totals (last
12 months)
3253
299248
1870
11013
268
509
0
0
0
0
1115
18
5
68
5
8274
53
590
0
11
Table 5a. Summary of PM and culture results for IFNg positive animals.

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
1869
235480
1156
8028
405
0
0
0
0
978
8
2
43
3
6295
0
38
0
1
Scotland
49
4979
24
109
3
0
0
0
0
12
0
0
2
0
73
3
12
0
3
Wales
1335
58789
690
2876
101
0
0
0
0
125
10
3
23
2
1906
50
540
0
7
Totals
3253
299248
1870
11013
509
0
0
0
0
1115
18
5
68
5
8274
53
590
0
11
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.
67
140
76
130
58
131
77
118
119
131
77
110
88
119
108
120
79
137
122
152
90
192
81
147
110
179
104
216
116
199
107
162
188
176
128
159
115
201
136
126
111
134
144
154
103
169
96
138
116
227
131
192
115
147
88
96
100
127
0
50
100
150
200
250
300
350
400
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
2018
2019
2020
IFNg Positive herds
IFNg Negative herds
18401
969
19186
1229
15561
1199
18776
953
19795
947
17980
701
22955
806
18566
682
20202
946
22357
1416
22496
1580
20038
1241
25652
1283
25636
1907
27595
1546
28851
1135
26967
1116
25138
964
30958
1219
20704
724
24198
693
25193
743
28627
1080
23356
904
29262
1367
31244
1289
17118
764
10415
408
xx-xxxx-xxxx
858
0
5000
10000
15000
20000
25000
30000
35000
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
2018
2019
2020
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
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
2018
2019
2020
%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
W Yorks
Wiltshire
Wigtown
Warks
Staffs
Somerset excl N
Powys
Perthshire
Pembs
Oxon
NE Wales
Lincs
Leics & Rut
Kirkcudbright
Heref
Hampshire
Gwynedd
Gwent
Gloucs
E Sussex
Dorset
Devon
Derbyshire
Corn & Scilly
Cleveland
Cheshire
Ceredigion
Carms
Berks
%Retested
%Resampled
Figure 6. Proportion of samples retested, or requiring a resample, during May 2020 (% submission per County)
County
%Resampled %Retested
Berks
11.11 %
14.81 %
Carms
4.42 %
6.02 %
Ceredigion
4.55 %
4.55 %
Cheshire
4.52 %
6.30 %
Cleveland
2.00 %
Corn & Scilly
4.26 %
5.98 %
Derbyshire
6.75 %
8.51 %
Devon
5.24 %
7.21 %
Dorset
2.36 %
3.31 %
E Sussex
7.11 %
9.48 %
Gloucs
5.73 %
6.49 %
Gwent
1.31 %
2.06 %
Gwynedd
3.77 %
3.77 %
Hampshire
3.79 %
8.20 %
Heref
2.65 %
3.54 %
Kirkcudbright
4.17 %
5.83 %
Leics & Rut
Lincs
4.23 %
5.63 %
NE Wales
6.03 %
7.60 %
Oxon
4.68 %
7.12 %
Pembs
4.52 %
5.46 %
Perthshire
3.36 %
3.92 %
Powys
4.02 %
5.02 %
Somerset excl
1.69 %
2.75 %
Staffs
3.29 %
4.35 %
Warks
2.27 %
2.27 %
Wigtown
16.67 %
16.67 %
Wiltshire
6.55 %
9.48 %
W Yorks
7.69 %
15.38 %

Country
No.
animals
No of IFHg+
animals
% Positive
animals
No. samples
No of IFHg+
samples
% Positive
samples
England
13105
616
4.7%
13263
616
4.6%
Wales
3759
240
6.4%
3825
240
6.3%
Scotland
479
2
0.4%
483
2
0.4%
GB
17343
858
4.9%
17571
858
4.9%
Table 6a (i): Number of animals and submissions tested in May 2020
Country
No.
animals
No of IFHg+
animals
% Positive
animals
No. samples
No of IFHg+
samples
% Positive
samples
England
81721
3385
4.1%
86580
3385
3.9%
Wales
20339
1223
6.0%
21415
1224
5.7%
Scotland
2990
77
2.6%
3145
77
2.4%
GB
105049
4685
4.5%
111140
4686
4.2%
Table 6b (i): Number of animals and submissions tested in 2020 Up to end of May
Country
No.
animals
No of IFHg+
animals
% Positive
animals
No. samples
No of IFHg+
samples
% Positive
samples
England
23289
864
3.7%
23479
864
3.7%
Wales
4302
198
4.6%
4385
198
4.5%
Scotland
493
54
11.0%
493
54
11.0%
GB
28083
1116
4.0%
28357
1116
3.9%
Table 6a (ii): Number of animals and submissions tested in May 2019
Table 6b (ii): Number of animals and submissions tested in 2019 Up to end of May
Country
No.
animals
No of IFHg+
animals
% Positive
animals
No. samples
No of IFHg+
samples
% Positive
samples
England
108872
5383
4.9%
114874
5383
4.7%
Wales
26100
1546
5.9%
28125
1546
5.5%
Scotland
859
58
6.8%
859
58
6.8%
GB
135830
6987
5.1%
143858
6987
4.9%

* Test type
Num
Submissions
Num Samples Num Positives
Private
% Positive
Total
0
0
0
*SER-IOM: Serial High Specificity test – Isle of Man; PRV-SE: Private High Sensitivity test - England;
PRV-SP: Private High Specificity test – England
Table 7a Number of private samples May 2020
Table 7b Number of private samples 2020
* Test type
Num
Submissions
Num
Samples
Num
Positives
Private
% Positive
Cheshire
PRV-SP
1
1
0
0
Devon
PRV-SE
1
119
0
0
PRV-SP
1
6
0
0
Dorset
PRV-SE
1
1
0
0
PRV-SP
1
3
0
0
Gloucestershire
PRV-SE
1
8
3
37.50 %
Oxfordshire
PRV-SP
1
32
0
0
Staffordshire
PRV-SE
1
24
0
0
Worcestershire
PRV-SP
1
1
0
0
Total
9
195
3
1.54 %
Isle of Man
SER-IOM
8
46
0
0

Test
County
Num Submissions
Num Samples Tested
Num Positive Samples % Positive
TC0077
Carmarthenshire
2
23
7
30.4%
Ceredigion
3
14
2
14.3%
North East Wales
4
15
2
13.3%
Pembrokeshire
15
175
34
19.4%
Powys
5
58
11
19.0%
Wiltshire
1
291
3
1.0%
TC0077
30
576
59
10.2 %
Table 8a Number of Cattle Antibody Tests May 2020
Test
County
Num Submissions
Num Samples Tested
Num Positive Samples % Positive
TC0077
Carmarthenshire
14
268
44
16.4%
Ceredigion
10
40
6
15.0%
Devon
4
1,032
95
9.2%
North East Wales
18
530
57
10.8%
Pembrokeshire
43
618
112
18.1%
Powys
9
161
24
14.9%
South Wales
10
149
34
22.8%
Wiltshire
1
291
3
1.0%
TC0077
109
3,089
375
12.1 %
Table 8b Number of Cattle Antibody Tests 2020