Genetic analysis of ORF5 of recent Korean porcine reproductive and respiratory syndrome viruses (PRRSVs) in viremic sera collected from MLV-vaccinating or non-vaccinating farms.

ABSTRACT: The 23 open reading frame (ORF) 5 sequences of Korean type II porcine reproductive and respiratory syndrome virus (PRRSV) were collected from viremic sera from the (modified live vaccine) MLV-vaccinating and non-vaccinating farms from 2007 to 2008. The samples were phylogenetically analyzed with previous ORF5 sequences, including type I Korean PRRSV, and previously reported or collected sequences from 1997 to 2008. A MN184-like subgroup of type II Korean PRRSV was newly identified in the viremic sera collected from 2007 to 2008. And of the type I PRRSVs, one subgroup had 87.2 approximately 88.9% similarity with the Lelystad virus, showing a close relationship with the 27 approximately 2003 strain of Spain. The maximum parsimony tree of type II PRRSV from 1997 to 2008 showed that they had e

SUBMITTER: Kim HK 

PROVIDER: S-EPMC2801115 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature