TABLE 3:
Geographical distribution by county of herds positive and negative for antibodies against BRSV
| County | Number of herds sampled | Classification first/second sampling |
Proportion of positive herds | |||
|---|---|---|---|---|---|---|
| −/− | +/+ | −/+ | +/− | |||
| 1 | 1 | 1 | 0 | 0 | 0 | 0 |
| 2 | 4 | 4 | 0 | 0 | 0 | 0 |
| 3 | 10 | 7 | 0 | 3 | 0 | 30 |
| 4 | 11 | 2 | 4 | 4 | 1 | 82 |
| 5 | 7 | 3 | 4 | 0 | 0 | 57 |
| 6 | 6 | 6 | 0 | 0 | 0 | 0 |
| 7 | 16 | 1 | 5 | 9 | 1 | 94 |
| 8 | 11 | 7 | 1 | 2 | 1 | 36 |
| 9 | 14 | 5 | 3 | 2 | 4 | 64 |
| 10 | 6 | 5 | 1 | 0 | 0 | 17 |
| 11 | 3 | 3 | 0 | 0 | 0 | 0 |
| 12 | 5 | 0 | 2 | 2 | 1 | 100 |
| 14 | 1 | 0 | 0 | 1 | 0 | 100 |
| 15 | 8 | 2 | 0 | 3 | 3 | 75 |
| 17 | 7 | 6 | 0 | 0 | 1 | 14 |
| 18 | 7 | 2 | 1 | 1 | 3 | 71 |
| Total | 117 | 54 | 21 | 27 | 15 | 54 |
Number of herds sampled and herds classified as negative for BRSV infection at both samplings (−/−) or both positive (+/+), herds defined as having a new infection (−/+) or eliminating an infection (+/−)
BRSV, bovine respiratory syncytial virus