Detection of multiple enteric virus strains within a foodborne outbreak of gastroenteritis: An indication of the source of contamination

Christopher Gallimore*, C. Pipkin, H. Shrimpton, A. D. Green, Y. Pickford, C. McCartney, G. Sutherland, David Brown, J. J. Gray

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)

Abstract

An outbreak of acute gastroenteritis of suspected viral aetiology occurred in April 2003 in the British Royal Fleet Auxillary ship (RFA) Argus deployed in the Northern Arabian Gulf. There were 37 cases amongst a crew of 400 personnel. Of 13 samples examined from cases amongst the crew, six enteric viruses were detected by reverse transcriptase polymerase chain reaction (RT-PCR). Five different viruses were identified including, three norovirus genotypes, a sapovirus and a rotavirus. No multiple infections were detected. A common food source was implicated in the outbreak and epidemiological analysis showed a statistically significant association with salad as the source of the outbreak, with a relative risk of 3.41 (95% confidence interval of 1.7-6.81) of eating salad on a particular date prior to the onset of symptoms. Faecal contamination of the salad at source was the most probable explanation for the diversity of viruses detected and characterized.

Original languageEnglish
Pages (from-to)41-47
Number of pages7
JournalEpidemiology and Infection
Volume133
Issue number1
DOIs
Publication statusPublished - Feb 2005

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