| molecular characterization of astrovirus in stool samples from children in são paulo, brazil. | the purpose of this study was to characterize astrovirus in faecal samples collected from children with and without diarrhea in são paulo, brazil, grouped into two sets: epm and hu. detection and genotyping were carried out using reverse transcription nested polymerase chain reaction (rt-pcr) with specific primers directed towards the genome open reading frame 2 (orf2). results for epm set showed that 66/234 (28.2%) were positive: 28/94 (29.7%) from children with acute diarrhea, 14/45 (31.1%) wi ... | 2007 | 18209936 |