Abstract
This paper reports on several simultaneous outbreaks of norovirus infection linked to the consumption of raw oysters. Since January 2010, 334 cases in 65 clusters were reported from five European countries: the United Kingdom, Norway, France, Sweden and Denmark. The article describes the available epidemiological and microbiological evidence of these outbreaks.
Highlights
Norovirus in oystersOysters are grown in coastal waters of several countries and are considered a delicacy in most parts of the world
Contamination of oyster beds with noroviruses can occur after heavy rains cause flooding, which results in combined sewer overflow or hydraulic overload in sewage treatment plants [5, 13]
For the purpose of this article we defined a verified cluster as one where (i) evidence was available that cases had consumed oysters within the incubation period and (ii) norovirus was identified with reverse transcription RT- PCR (RT-PCR) in oysters from the same batch or from the same harvesting area as the oysters which were consumed by the cases
Summary
Citation style for this article: Citation style for this article: Westrell T, Dusch V, Ethelberg S, Harris J, Hjertqvist M, Jourdan-da Silva N, Koller A, Lenglet A, Lisby M, Vold L. Norovirus outbreaks linked to oyster consumption in the United Kingdom, Norway, France, Sweden and Denmark, 2010. This paper reports on several simultaneous outbreaks of norovirus infection linked to the consumption of raw oysters. Since January 2010, 334 cases in 65 clusters were reported from five European countries: the United Kingdom, Norway, France, Sweden and Denmark. The article describes the available epidemiological and microbiological evidence of these outbreaks
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