Journal
INFECTION GENETICS AND EVOLUTION
Volume 35, Issue -, Pages 50-55Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.meegid.2015.07.028
Keywords
Hepatitis E; Midi-Pyrenees area; France; Distribution; Genotype
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Funding
- Institut National de Veille Sanitaire
- INSERM [UMR1043]
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Southwest France is a highly endemic region for hepatitis E virus (HEV). This study examined the circulation of REV strains between 2003 and 2014 in the Midi-Pyrenees, and compared these data with those from the rest of France. The polyproline region (PPR) of the ORF1 region of the HEV genome was also analyzed. HEV genotype was determined by sequencing a 348-nt fragment within the ORF2 gene for 333 strains in the Midi-Pyrenees and for 571 strains from the rest of France. PPR region was characterized for 56 strains. The frequency of subgenotype 3f decreased over time, whereas subgenotype 3c increased in the Midi-Pyrenees. Repartition of strains did not differ in the Midi-Pyrenees compared to the rest of France. HEV3i and HEV4 have been recently detected throughout France. PPR lengths showed that two major groups of HEV3f exist. Our study shows that HEV3 distribution in the Midi-Pyrenees was similar to the whole of France. Local dietary habits could explain the higher seroprevalence in the Midi-Pyrenees rather the circulation of a particular variant in this region. (C) 2015 Elsevier B.V. All rights reserved.
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