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The Scientific World Journal
Volume 2013, Article ID 984282, 5 pages
http://dx.doi.org/10.1155/2013/984282
Research Article

Molecular Detection of Porcine Torovirus in Piglets with Diarrhea in Southwest China

1Animal Biotechnology Center, College of Veterinary Medicine of Sichuan Agricultural University, Ya’an 625014, China
2Key Laboratory of Animal Disease and Human Health of Sichuan Province & Animal Biotechnology Center, College of Veterinary Medicine of Sichuan Agricultural University, Ya’an 625014, China

Received 6 September 2013; Accepted 9 December 2013

Academic Editors: A. Ludwig, A. Rak-Mardyła, and B. I. Yoon

Copyright © 2013 Yuancheng Zhou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Porcine torovirus (PToV) was detected from intestinal samples of piglets with diarrhea from 20 farms in southwest China. The total prevalence of PToV was 45% (9 out of 20 farms); it was the first detection of PToV in China, and also the study analyzed the phylogenetic relationships between the Chinese PToV and PToV reference strains as well as other representative toroviruses. Genetic and phylogenetic analysis showed the existence of genetic diversity among geographically separated PToV. Statistical analysis of the PToV positive rate as well as a survey for other enteric pathogens in diarrheic pigs suggests that PToV may play a role as a causative agent of severe diarrhea in piglets.