期刊论文

Yu, Xinglong

英文

Archives of Virology

0304-8608

2018

163

7

1897-1906

10.1007/s00705-018-3823-9

◂Fig. 2 Alignment of 28 deduced ORF2 amino acid sequences corre-sponding to previously described antibody-recognition domains. The representative sequences of the PCV2a, PCV2b, PCV2c, and PCV2d genotype are AF055392, AF055394, EU148503 and HM038017, respectively. The black box represents the differentiation motif of the PCV2 genotype, while red boxes represent PCV2d-specific amino acid residues. “.” indicates that the residue is identical to that in the reference sequence (GenBank no. HM038017) Funding This study was supported by the National Key Research and Development Program of China (2017YFD0500104).

本校为第一且通讯机构

Porcine circovirus 2 (PCV2) has been widely prevailing in China since the first report in 2001, causing huge economic losses to the pig industry. In the present study, 674 samples were collected from 2006 to 2016 in Hunan province, and 62% were positive for PCV2. An increase was observed from 2006 to 2011 (72.1%-89.1%), and a decrease was observed from 2012 to 2016 (78.9%-36.8%). The prevalence of genotype PCV2a, PCV2b, and PCV2d was 0, 44.7% and 67%, respectively. During 2006-2007, PCV2b was the main genotype circulating in Hunan, while, in 2008, PCV2d became the predominant one. Coinfection ...