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


Boccia, D; Tozzi, AE; Cotter, B; Rizzo, C; Russo, T; Buttinelli, G; Caprioli, A; Marziano, ML; Ruggeri, FM; (2002) Waterborne outbreak of Norwalk-like virus gastroenteritis at a tourist resort, Italy. Emerging infectious diseases, 8 (6). pp. 563-8. ISSN 1080-6040

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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.

Item Type: Article
Keywords: Adolescent, Adult, Aged, Aged, 80 and over, Blotting, Southern, Caliciviridae Infections/*epidemiology/virology, Child, Child, Preschool, Cluster Analysis, Cohort Studies, DNA, Viral/chemistry/genetics, *Disease Outbreaks, Feces/virology, Female, Gastroenteritis/*epidemiology/virology, Humans, Infant, Italy/epidemiology, Male, Middle Aged, Norovirus/genetics/*isolation & purification, Retrospective Studies, Vomiting/epidemiology/virology, Water Microbiology, *Water Supply, Adolescent, Adult, Aged, Aged, 80 and over, Blotting, Southern, Caliciviridae Infections, epidemiology, virology, Child, Child, Preschool, Cluster Analysis, Cohort Studies, DNA, Viral, chemistry, genetics, Disease Outbreaks, Feces, virology, Female, Gastroenteritis, epidemiology, virology, Humans, Infant, Italy, epidemiology, Male, Middle Aged, Norovirus, genetics, isolation & purification, Retrospective Studies, Vomiting, epidemiology, virology, Water Microbiology, Water Supply
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Infectious Disease Epidemiology
PubMed ID: 12023910
Web of Science ID: 175851000005
URI: http://researchonline.lshtm.ac.uk/id/eprint/9085

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