Table 3 Prevalence of antibodies to PCV2 in pig sera collected from Henan, Hunan, and Beijing
Areas | Positive | Negative | Total | Positive rate |
|---|---|---|---|---|
Beijing city | 371 | 6 | 377 | 98.4 % |
Hunan province | 348 | 84 | 432 | 80.6 % |
Henan province | 387 | 101 | 488 | 79.3 % |
Total | 1106 | 191 | 1297 | 85.3 % |