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Table 5 Sero-prevalence of PCV3 infection in pig serum samples from 2011 to 2017 as determined by indirect ELISA

From: Prevalence of porcine circovirus type 3 in pigs in the southeastern Chinese province of Zhejiang

Year No. of samples No. of positive samples Positive rate (%)
2011 28 0 0
2012 880 535 60.8
2013 46 27 58.7
2016 663 310 46.8
2017 728 362 49.7
Total 2345 1234 52.6