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Table 3 SBV ELISA-positive animals detected in surveillance Year +1, Year +2 and Year +3 in cows (C), heifers (H), youngstock (Y) in each herd, with the number of positive animals detected per herd in each surveillance year, blood sampling dates, ELISA S/N% results, Positive (P), Negative (N), S/N% value from the ELISA threshold cut-off and date of birth and age (months) of animals at first blood sampling

From: Post-epidemic Schmallenberg virus circulation: parallel bovine serological and Culicoides virological surveillance studies in Ireland

Surveillance year

Herd ID

Animal type

Number of positives

Blood sample 1

Blood sample 2

Date

ELISA S/N %

Result

S/N% from cut off

Date of birth

Age (months)

Date

ELISA S/N %

Result

S/N % from cut off

Year +1 (2013)a

1

H

1

29-Mar-14

6.9

P

33.1

15-Mar-13

31.2

–

–

–

–

3

H

1

28-Mar-14

4.9

P

35.1

13-Mar-13

31.3

–

–

–

–

12

H

1

21-Mar-14

25.0

P

15.0

07-Mar-13

31.2

–

–

–

–

13

H

1

21-Mar-14

32.8

P

7.2

14-Feb-13

33.1

–

–

–

–

20

H

1

14-Mar-14

37.6

P

2.4

15-Feb-13

32.4

–

–

–

–

21

H

1

28-Mar-14

33.1

P

6.9

16-Mar-13

31.0

–

–

–

–

22

H

2

22-Mar-14

31.4

P

8.6

26-Mar-13

29.7

–

–

–

–

22

H

2

22-Mar-14

7.6

P

32.4

26-Mar-13

29.7

–

–

–

–

26

H

1

26-Mar-14

6.6

P

33.4

18-Feb-13

33.2

–

–

–

–

Year +2 (2014)

4

C

2

19-Mar-14

57.8

N

7.8

–

–

25-Nov-14

37.3

P

2.7

7

C

3

21-Mar-14

64.1

N

14.1

–

–

28-Nov-14

33.9

P

6.1

7

C

3

24-Mar-14

76.9

N

26.9

–

–

17-Nov-14

11.5

P

28.5

12

C

2

19-Mar-14

50.7

N

0.7

–

–

27-Nov-14

23.2

P

16.8

12

C

2

18-Mar-14

55.0

N

5.0

–

–

27-Nov-14

9.5

P

30.5

14

C

1

21-Mar-14

50.7

N

0.7

–

–

01-Dec-14

30.4

P

9.6

16

C

2

28-Mar-14

68.9

N

18.9

–

–

14-Nov-14

19.6

P

20.4

16

C

2

27-Mar-14

51.0

N

1.0

–

–

20-Nov-14

30.5

P

9.5

17

C

1

21-Mar-14

54.2

N

4.2

–

–

28-Nov-14

34.0

P

6.0

22

C

1

18-Mar-14

77.4

N

27.4

–

–

27-Nov-14

7.2

P

32.8

2

H

1

27-Mar-14

69.2

N

19.2

–

–

20-Nov-14

13.3

P

26.7

4

H

1

27-Mar-14

81.1

N

31.1

–

–

20-Nov-14

23.1

P

16.9

6

H

1

21-Mar-14

71.6

N

21.6

–

–

28-Nov-14

39.5

P

0.5

7

H

3

14-Mar-14

72.4

N

22.4

–

–

24-Nov-14

34.6

P

5.4

13

H

1

19-Mar-14

78.1

N

28.1

–

–

27-Nov-14

15.0

P

25.0

Year +3 (2015)

4

Y

1

24-Nov-14

38.8

P

1.2

19-Jan-14

10.17

17-Nov-15

74.4

N

24.4

13

Y

1

28-Nov-14

34.0

P

6.0

17- Feb-14

9.37

02-Dec-15

86.0

N

36.0

15

Y

1

19-Nov-14

34.7

P

5.3

14-Mar-14

8.17

08-Dec-15

105.4

N

55.4

16

Y

2

27-Nov-14

32.5

P

7.5

13-Feb-14

9.47

25-Nov-15

71.7

N

21.7

16

Y

1

27-Nov-14

37.6

P

2.4

19-Feb-14

9.27

25-Nov-15

79.7

N

29.7

18

Y

1

12-Dec-14

36.0

P

4.0

30-Mar-14

8.40

20-Nov-15

85.7

N

35.7

22

Y

1

01-Dec-14

34.2

P

5.8

05-Mar-14

8.87

09-Dec-15

95.8

N

45.8

  1. aSurveillance year +1 = positive heifers only; positive cows are excluded as they are likely to have been exposed to SBV during the 2012 Irish SBV epidemic
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BMC Veterinary Research

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