Table 3 Distribution by age of BVDV and BHV-1 seropositive individuals among animals older than 6 months, in 11 dairy herds in the Khon Kaen province, Thailand, 2001.
From: BVDV and BHV-1 Infections in Dairy Herds in Northern and Northeastern Thailand
Age (years) | No. of animals | BVDV* | BHV-1* | ||
|---|---|---|---|---|---|
No. of positive | Prevalence (%) | No. of positive | Prevalence (%) | ||
> 6 | 70 | 35 | 50 | 15 | 21 |
4–6 | 57 | 11 | 19 | 3 | 5 |
2–4 | 110 | 22 | 20 | 0 | 0 |
0.5–2 | 114 | 15 | 13 | 0 | 0 |
Total | 351 | 83 | 24 | 18 | 5 |