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Table 2 Seroprevalence of antibodies against PRRSV in pigs in Jiangxi Province, China in 2007.

From: Outbreaks of highly pathogenic porcine reproductive and respiratory syndrome in Jiangxi province, China

Herds No. of positive sera No. of sera examined
1 10 10
2 10 10
3 14 16
4 17 24
5 62 92
Total 113 152