Key result
International norovirus surveillance aids in source-tracking, monitoring foodborne dissemination, and early detection of emerging variants like the highly penetrant genotype GII.4.
International norovirus surveillance is important for source-tracking, monitoring foodborne dissemination, and early detection of emerging variants.
May support outbreak monitoring in practice; leaves open optimal global protocols for variant tracking.
The clinical importance of noroviruses has increased in recent years. It is challenging to control the annual gastroenteritis and vomiting outbreaks caused by noroviruses in hospital wards and also long-term care facilities. This problem is partly due to the repeated emergence of highly penetrant genotype GII.4 variants that cause global epidemics. Consequently, this has led to an increased awareness of norovirus receptor selection and the population immunity characteristics that drive the evolution of the virus. Noroviruses mainly transmit from person to person by the feco–oral route and also via food, water and environmental fomites. International norovirus surveillance helps in source-tracking and in being able to follow the dissemination of viruses with food products in addition to the early detection of emerging variants.
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Maunula et al. (2011) conducted a review in Human Norovirus Infection. International norovirus surveillance aids in source-tracking, monitoring foodborne dissemination, and early detection of emerging variants like the highly penetrant genotype GII.4.
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