| molecular characterization of partial-open reading frames 1a and 2 of the human astroviruses in south korea. | human astroviruses (hastvs) are among the major causes of gastroenteritis in south korea. in this study, the partial regions of the open reading frame (orf) 1a and orf2 genes of hastvs from gastroenteritis patients in nine hospitals were sequenced, and the molecular characterization of the viruses was revealed. 89 partial nucleotide sequences of orf1a and 88 partial nucleotide sequences of orf2 were amplified from 120 stool specimens. phylogenetic analysis showed that most of the nucleotide sequ ... | 2010 | 20831802 |