Phylogenetic Analysis of the Species Theilovirus: Emerging Murine and Human Pathogens

Overview

Journal J Virol

Publisher American Society for Microbiology

Date 2008 Sep 26

PMID 18815294

Citations 43

Authors

Zhiguo Liang

A S Manoj Kumar

Morris S Jones

Nick J Knowles

Howard L Lipton

Affiliations

Soon will be listed here.

Abstract

The Cardiovirus genus of the family Picornaviridae includes two distinct species, Encephalomyocarditis virus and Theilovirus. We now report the complete nucleotide sequences of three Theiler's murine encephalomyelitis virus (TMEV) strains (TO Yale, TOB15, and Vie 415HTR) and of Vilyuisk human encephalomyelitis virus (VHEV). This information, together with the recently reported sequences of divergent theiloviruses (Theiler's-like rat virus [TRV] and Saffold viruses 1 and 2 [SAFV-1 and SAFV-2]), enables an updated phylogenetic analysis as well as a reexamination of several gene products important in the pathogenesis of this emerging group of viruses. In the light of the known neurotropism of TMEV and the new human SAFV-1 and SAFV-2, the resulting data suggest the existence of theiloviruses that cause human central nervous system infections. Our phylogenetic analyses point to the classification of presently known theiloviruses into five types: TMEV, VHEV, TRV, SAFV-1, and SAFV-2.

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