Phylogenetic analysis of classical swine fever virus isolated from Taiwan
Journal
Veterinary Microbiology
Journal Volume
106
Journal Issue
44624
Pages
187-193
Date Issued
2005
Author(s)
Deng, Ming-Chung
Huang, Chin-Cheng
Huang, Tien-Shian
Lin, Yu-Ju
Chien, Maw-Sheng
Jong, Ming-Hwa
Abstract
By analyzing the E2 sequences of classical swine fever virus from field outbreaks in Taiwan during 1993-2001, three virus populations with distinct genotypes were determined including one historical (subgroup 3.4) and two exotic (subgroup 2.1) strains. The first subgroup 2.1 virus was isolated in 1994 and further sporadic outbreaks occurred after 1996. Phylogenetic analysis using the E2 region has segregated the Taiwanese strains of 2.1virus into two different genotypes (termed 2.1a and 2.1b). The 2.1b viruses were only isolated in 2001 and shared approximately 94.8% nucleotide identities to the 2.1a viruses in the total genomic sequences. The results suggest that the 2.1a and 2.1b viruses may be introduced from different origins. © 2005 Elsevier B.V. All rights reserved.
Subjects
Classical swine fever virus; Epidemiology; Pestivirus; Phylogenetics
Other Subjects
RNA; article; controlled study; genomics; genotype; nonhuman; nucleotide sequence; Pestivirus; phylogeny; swine; Taiwan; virus isolation; Classical swine fever virus; Pestivirus; Sus scrofa
Type
journal article