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Emerg Infect Dis. 2002 Jun;8(6):563-8.

Waterborne outbreak of Norwalk-like virus gastroenteritis at a tourist resort, Italy.

Author information

1
Department of Communicable Disease, Istituto Superiore di Sanità, Rome, Italy. boccia@iss.it

Abstract

In July 2000, an outbreak of gastroenteritis occurred at a tourist resort in the Gulf of Taranto in southern Italy. Illness in 344 people, 69 of whom were staff members, met the case definition. Norwalk-like virus (NLV) was found in 22 of 28 stool specimens tested. The source of illness was likely contaminated drinking water, as environmental inspection identified a breakdown in the resort water system and tap water samples were contaminated with fecal bacteria. Attack rates were increased (51.4%) in staff members involved in water sports. Relative risks were significant only for exposure to beach showers and consuming drinks with ice. Although Italy has no surveillance system for nonbacterial gastroenteritis, no outbreak caused by NLV has been described previously in the country.

PMID:
12023910
PMCID:
PMC2738487
DOI:
10.3201/eid0806.010371
[Indexed for MEDLINE]
Free PMC Article

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