Phylogeny and evolution of porcine teschovirus 8 isolated from pigs in China with reproductive failure

Abstract

A porcine teschovirus (PTV) was isolated from a dead piglet from a herd of 200 sows showing reproductive failure in Fuyu, Heilongjiang Province, China. Sequencing of most of the genome of this isolate, designated Fuyu/2009, revealed that is was a PTV-8 isolate, closely related to a previously identified Chinese PTV-8 strain (Jilin/2003). Both Chinese strains vary from the European PTV-8 strains by different clustering of the 3CD sequences. Infection with these viruses may be associated with pronounced diseases.