Table 2 Statistical relation between the results of BoHV-2 serology in relation to the respective results in BoHV-1 ELISAs for animals (a) and farms (b)

BoHV-2 seropositive animals (n = 375)

BoHV-2 seronegative animals (n = 6426)

OR^a(CI 95%)

p-value

BoHV-1 ELISA negative animals

312

6343

1.00

–

Trachitest-positive animals

30

60

10.71 (6.46–15.99)

< 0.001

Non-negative animals

33

23

29.17 (16.92–50.27)

< 0.001

BoHV-2 seropositive farms^b(n = 78)

BoHV-2 seronegative farms^c(n = 328)

OR^a(CI 95%)

p-value

BoHV-1 ELISA negative farms^d

36

278

1.00

–

Trachitest-positive farms^e

15

37

3.13 (1.57–6.26)

< 0.001

Non-negative farms^f

27

13

16.04 (7.60–33.86)

< 0.001