... ZY, Ushijima H:Genetic analysis of the capsid region of astroviruses. J Med Virol 20 01,64 :24 5 -25 5.doi:10.1186/1743- 422 X-7 -22 1Cite this article as: Lee et al.: Molecular characterization of ... genome sequencesofsevengenotypes(HAstV-1 ,2, 3,4,5,6 ,and8 )and the HAstV-7 ORF2 sequence are available [18 ,20 -23 ]. Inthis study, the partial nucleotide sequences of ORF1a and ORF2 of HAstVs, responsible ... ORF1a and 88 partial nucleotide sequences of ORF2 were amplified from 120 stool specimens. Phylo-genetic analysis showed that most of the nucleotide sequences of ORF1a and ORF2 were grouped with...