| genetic diversity of norovirus, sapovirus, and astrovirus isolated from children hospitalized with acute gastroenteritis in chiang mai, thailand. | norovirus (nv), sapovirus (sv), and human astrovirus (hastv) are important causes of acute gastroenteritis in infants and young children. this study investigated the prevalence of nv, sv, and hastv infections in children hospitalized with acute gastroenteritis in chiang mai, thailand from may 2000 to march 2002. fecal specimens were tested for nv, sv, and hastv by reverse transcription polymerase chain reaction (rt-pcr) using degenerate specific primers. these viruses were characterized further ... | 2008 | 18712816 |