Table 1.
Farm | Location | Size | Sera samples Positive/total | Tissue samples Positive/total | Virus isolation |
---|---|---|---|---|---|
A |
Anhui |
160 |
7/8 |
3/12 |
AH12-01 AH12-02 |
B |
Jiangsu |
180 |
5/7 |
2/12 |
AH12-02 |
C |
Jiangsu |
150 |
6/6 |
2/6 |
AH12-01 |
D | Jiangsu | 200 | 6/7 | 0/0 | JS12/04 |