Skip to main content

Table 3 Comparison of the number of pigs in five herds found positive by ELISA using either whole cell (WC) or recombinant Bhlp29.7 as plate coating antigens with serum and meat juice samples, and specificity and sensitivity at the herd level

From: The use of ELISAs for monitoring exposure of pig herds to Brachyspira hyodysenteriae

 

Serum

Meat juice

 

IgG

IgM

IgG

IgM

Herd a

WC

Bhlp29.7

WC

Bhlp29.7

WC

Bhlp29.7

WC

Bhlp29.7

A

0

0

1

0

0

0

0

0

B

0

0

0

0

0

0

0

0

C

1

1

2

2

3

1

4

1

D

2

0

1

1

1

1

0

1

E

2

1

4

2

3

1

3

1

Total positive in herds C-E

5

2

7

5

7

3

7

3

Specificity (%)

100

100

50

100

100

100

100

100

Sensitivity (%)

100

66.7

100

100

100

100

66.7

100

  1. a Herds A and B known not to be infected with B. hyodysenteriae. Fifty pigs were sampled from each herd.