Abstract
Hepatitis E virus (HEV) is the causative agent of viral hepatitis E. In Japan, HEV genotype 3 (G3) and G4 are predominantly detected, while G1, mainly imported from countries in continental Asia, is rare. In the present study, we detected a G1 HEV strain in a patient who visited Japan from India. When PLC/PRF/5 cells (subclone 4-21) were inoculated with a stool suspension from this patient, accumulation of HEV RNA was observed in the spent culture medium, indicating that HEV had been successfully isolated from this specimen. A nearly complete HEV genome was obtained by RT-PCR amplification. Phylogenetic analyses revealed that the newly isolated HEV strain, designated 9HE36c, belongs to subtype 1g of HEV G1.
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