UNSPECIFIED (2003) A Norwalk-like virus waterborne community outbreak in a Swedish village during peak holiday season. EPIDEMIOLOGY AND INFECTION, 131 (1). pp. 737-744. doi:10.1017/S0950268803008604

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Abstract

An outbreak of gastroenteritis due to Norwalk-like virus (NLV) affecting approximately 500 people occurred in a Swedish ski resort during February-March 2002. Epidemiological investigations were performed on cohorts of schoolchildren, permanent residents and skiers visiting the area. Attack rates were respectively 39.7, 29.9 and 38.5%. Drinking un-boiled water originating from one of the three communal water systems was a significant risk factor for all groups. For schoolchildren, the risk of illness increased with increasing amount of water consumed. Nine of 12 stool samples of patients analysed tested positive for NLV. The water tested negative for indicator bacteria and results of NLV tests were inconclusive. In the absence of microbiological findings, the environmental authorities were reluctant to act based on the epidemiological analysis alone, and intervention was delayed until mid-April, following the discovery of a crack in a sewage pipe 10 m from the well.

Item Type:	Journal Article
Subjects:	R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine Q Science > QR Microbiology > QR355 Virology
Journal or Publication Title:	EPIDEMIOLOGY AND INFECTION
Publisher:	CAMBRIDGE UNIV PRESS
ISSN:	0950-2688
Official Date:	August 2003
Dates:	Date Event August 2003 UNSPECIFIED
Volume:	131
Number:	1
Number of Pages:	8
Page Range:	pp. 737-744
DOI:	10.1017/S0950268803008604
Publication Status:	Published

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