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Abstract
Hepatitis E virus (HEV) causes a common infection in developing countries. HEV infection occurs as outbreaks, as sporadic clinical cases and as large epidemics in endemic areas. The objective of this study was to determine the presence of HEV infection in patients with clinical suspicion of hepatitis A virus (HAV) infection, referred to the Instituto Nacional de Higiene “Rafael Rangel” in Venezuela. Seventy‐four sera were tested for anti‐HAV and anti‐HEV IgM antibodies. HEV‐RNA was amplified from anti‐HEV IgM positive sera using nested reverse transcription polymerase chain reaction for ORF1 (RNA dependent RNA polymerase region) and the amplicons sequenced for phylogenetic analysis. The frequency of anti‐HEV IgM was 22/74 (30%) in the samples tested. Dual infection with HAV and HEV was found in 31% (12/39) of anti‐HAV IgM positive patients. Viremia was detected in 3/22 (14%) of sera positive for anti‐HEV IgM. Two HEV strains were classified as genotype 1 and one as genotype 3, which were closely related to Yam 67 (north of India) and US1 isolates from the USA, respectively. These findings suggest that HEV is an important cause of acute viral hepatitis in Venezuela as a single infection or co‐infection with HAV, with high morbidity in children and young adults suggesting that this infection is endemic in Venezuela. J. Med. Virol. 84: 1025–1029, 2012. © 2012 Wiley Periodicals, Inc.
| Authors: | García, Cristina Gutiérrez; Sánchez, Doneyla; Villalba, Maria Caridad Montalvo; Pujol, Flor Helene; de los Ángeles Rodríguez Lay, Licel; Pinto, Belquis; Chacón, Elsa Patricia; Guzmán, Maria Guadalupe | |
| Journal: | Journal of Medical Virology | |
| Volume: | 84 | |
| Issue: | 7 | |
| Year: | 2012 | |
| Pages: | 1025 | |
| DOI: | 10.1002/jmv.23277 | |
| Publication date: | 01-07-2012 |
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