| epidemiological and virological studies on outbreaks of acute gastroenteritis associated with rotavirus in primary schools in osaka. | there have been three recent outbreaks of acute gastroenteritis in primary schools in osaka prefecture caused by rotavirus: one in a school (ta) in april, 1974 and two in two other schools (te and k) in may 1975. the morbidity from the disease was 2.4--15.8% for all age groups in the schools, and 20.1--34.1% for a certain age group. the disease lasted for 4 (k) to 14 days (te). the first cases in schools ta and te were followed by successive cases. the main clinical symptoms were higher frequenc ... | 1979 | 231434 |