Related Experiment Video
Updated: Jun 18, 2026

Nasal Wipes for Influenza A Virus Detection and Isolation from Swine
Published on: December 4, 2015
Phylogenetic analysis of recent classical swine fever virus (CSFV) isolates from Assam, India
Dilip Kumar Sarma1, Niranjan Mishra, Stefan Vilcek
1Assam Agricultural University, Khanapara, Guwahati, Assam, India.
Abstract:
Classical swine fever (CSF), a highly contagious viral disease of pigs, is endemic in India. As there is no information concerning the accurate genetic typing of classical swine fever virus (CSFV) isolates in India, 16 CSF viruses isolated during 2005-2007 from domestic pigs in different districts of Assam were typed in 5' UTR (150 nucleotides). To confirm the genetic typing results and to study the genetic variability, selected viruses were also analyzed in E2 (190 nt) and NS5B gene (409 nt) regions. Phylogenetic analysis revealed that all the 16 CSFV isolates analyzed belonged to group 1 and subgroup 1.1 in contrast to the situation in other Asian countries. Additionally, analysis in E2 and NS5B region placed the Indian isolates in a clearly separated clade within subgroup 1.1. The results suggest that subgroup 1.1 CSF viruses are currently circulating in India, which is important for epidemiology and control of CSF.
Related Concept Videos
Evolutionary Relationships through Genome Comparisons
Viral Recombination
Viral Mutations
Single Nucleotide Polymorphisms-SNPs
Arboviral Encephalitis

