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Retrospective investigation and evolutionary analysis of a novel porcine deltacoronavirus strain detected in Thailand from 2008 to 2015

Authors
  • Saeng-chuto, Kepalee1
  • Stott, Christopher J.1
  • Wegner, Matthew1
  • Senasuthum, Raweewan1
  • Tantituvanont, Angkana1
  • Nilubol, Dachrit1
  • 1 Chulalongkorn University, Bangkok, Thailand , Bangkok (Thailand)
Type
Published Article
Journal
Archives of Virology
Publisher
Springer-Verlag
Publication Date
Mar 23, 2017
Volume
162
Issue
7
Pages
2103–2108
Identifiers
DOI: 10.1007/s00705-017-3331-3
Source
Springer Nature
Keywords
License
Yellow

Abstract

Porcine deltacoronavirus (PDCoV) in Thailand was first detected in 2015. We performed a retrospective investigation of the presence of PDCoV in intestinal samples collected from piglets with diarrhea in Thailand from 2008 to 2015 using RT-PCR. PDCoV was found to be present as early as February 2013. Phylogenetic analysis demonstrated that all PDCoV variants from Thailand differ from those from other countries and belong to a novel group of PDCoV that is separate from the US and Chinese PDCoV variants. Evolutionary analysis suggested that the Thai PDCoV isolates probably diverged from a different ancestor from that of the Chinese and US PDCoV isolates and that this separation occurred after 1994.

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