Table 5 Prevalence of antibodies to PCV2 in pig sera collected from Henan, Hunan, and Shandong Provinces
Areas | Positive | Negative | Total | Positive rate |
|---|---|---|---|---|
Hunan province | 68 | 2 | 70 | 97.1% |
Henan province | 28 | 7 | 35 | 80.0% |
Shandong province | 55 | 10 | 65 | 84.6% |
Total | 151 | 19 | 170 | 88.9% |