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. 1993 Jun;28(3):233-47.
doi: 10.1016/0168-1702(93)90024-h.

The sequence of hepatitis E virus isolated directly from a single source during an outbreak in China

S L Bi  1 , M A Purdy, K A McCaustland, H S Margolis, D W Bradley
Affiliations

The sequence of hepatitis E virus isolated directly from a single source during an outbreak in China

S L Bi et al. Virus Res. 1993 Jun.

Erratum in

  • Virus Res 1994 Jul;33(1):98

Abstract

In this study an IgM antibody-mediated antigen-capture procedure for direct extraction of hepatitis E virus (HEV) RNA from clinical specimens was developed and used with an efficient method for generating viral cDNA that was subsequently sequenced using the dideoxy chain termination method. This is the first time the complete HEV genome has been isolated directly from a single human clinical specimen obtained during an outbreak of enterically transmitted non-A, non-B hepatitis. When the Chinese-derived sequence was compared with the original isolate of Burmese HEV from an experimentally infected cynomolgus macaque, the homology between the two sequences was 94% and 98.5% at the nucleotide and amino acid levels, respectively. The methods we developed for generating and sequencing genomic HEV cDNA dramatically improved the efficiency of cloning the viral genome and should be helpful for continued analysis of this virus as well as other RNA viruses that have proven to be difficult to clone and sequence directly.

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