Table 1 Number of herds in Estonia in 2007 and study sample size
Herd size | Number of herds in Estonia in 2007 | Study sample (BHV-1 antibody positive herds) | Study sample (BHV-1 antibody negative herds) | Study sample in total |
|---|---|---|---|---|
20-49 | 255 | 9 | 17 | 26 |
50-99 | 110 | 7 | 9 | 16 |
100-199 | 85 | 14 | 5 | 19 |
200-399 | 83 | 18 | 6 | 24 |
≥400 | 59 | 17 | 1 | 18 |
Total | 592 | 65 | 38 | 103 |