Retrospective study of porcine circovirus 3 infection in China

In this study, 200 porcine clinical samples collected from 20 provinces, five autonomous regions and four municipalities between 1990 and 1999 were analysed for PCV3 infection by PCR. Results showed that 6.5% of the porcine samples collected from eight provinces and one autonomous region were PCV3 positive, with the earliest cases occurring in 1996. Nucleotide sequence analysis showed that PCV3 strains obtained in this study shared 96.6%–99.7% and 97.1%–99.4% sequence identity at the ORF2 gene and genome levels with all available reference strains from China and other countries, indicating the high genetic stability of PCV3 over the past 20 years.

Source: Transboundary and Emerging Diseases - March 9, 2018 Category: Veterinary Research Authors: J. Sun, L. Wei, Z. Lu, S. Mi, F. Bao, H. Guo, C. Tu, Y. Zhu, W. Gong Tags: RAPID COMMUNICATION Source Type: research