Related Experiment Video
Updated: Aug 19, 2026

Standard Operating Procedure for Lyssavirus Surveillance of the Bat Population in Taiwan
Published on: August 27, 2019
Phylogenetic analysis of classical swine fever virus isolated from Taiwan
Ming-Chung Deng1, Chin-Cheng Huang, Tien-Shian Huang
1Department of Hog Cholera, National Veterinary Research Institute, Council of Agriculture, 376 Chung-Cheng Road, Tamsui, Taipei 251, Taiwan.
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 2.1 virus 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.
Related Concept Videos
Viral Mutations
Viral Recombination

