摘要：This paper reports on an outbreak of viral gastroenteritis in three institutions (two aged care facilitiesand one hospital) in Canberra during the winter of 2002. Norwalk-like virus genotype II was detectedin samples from staff and/or residents in all three institutions. A case series investigation wasconducted amongst both staff and residents. It is likely that the outbreaks in the three institutionswere linked due to transfers of infected residents from one institution to another, early in the outbreak.A total of 281 cases were identified during the outbreak, which lasted 32 days. Attack rates in thethree institutions were 46.3 per cent, 52.7 per cent and 55.2 per cent respectively. Person-to-personspread and/or airborne transmission were postulated as modes of transmission in all threeinstitutions. Infection control practices in each of the aged care institutions were of an acceptablestandard for accreditation, but were inadequate to control further spread of the outbreak within andbetween institutions. Outbreak management plans should be a part of the infection control standardsfor accreditation of aged care facilities
关键词：Nor walk-like virus; outbreak; gastroenteritis; aged care facilities; hospitals; infection control
