Re s u l t s: In the norovirus group, 19 (86.4%) children showed vomiting and 21 (95.5%) children showed diarrhea, while all children in the rotaviral group showed both vomiting and diarrhea. The duration of vomiting was not different in the two groups, but mean episodes of vomiting/24 h were higher in the norovirus group than in the rotavirus group. The duration of diarrhea was longer and mean episodes of diarrhea/24 h were higher in the rotavirus group. The Vesikari Scale was not different in the two groups. Frequency and duration of fever did not show a significant difference. Most children in both groups were below 2 years of age. 2 .노로바이러스 RT ( r e v e r s et r a n s c r i p t i o n ) -PCR 방법 노로바이러스 위장관염은 대변 검체를 경기보건환경연구원에