Key result
Across 13 European countries over 5 years, norovirus GII.4 strains predominated in gastroenteritis outbreaks, particularly in health care settings and person-to-person transmission.
Population
Reported outbreaks of norovirus (NoV)-caused gastroenteritis from 13 European countries
Design
Cohort
Follow-up
5 years (July 2001 to July 2006)
Authors
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Supports enhanced GII.4 surveillance in healthcare outbreaks; leaves open immune selection mechanisms for vaccine research.
Observational
Yes
GII.4 norovirus strains predominated in European outbreaks from 2001-2006, particularly in healthcare settings, suggesting immune-driven selection and properties facilitating transmission.
Kroneman et al. (2008) conducted an observational in Norovirus-caused gastroenteritis. Norovirus GII.4 strains was evaluated on Trends in time and epidemiology of genotypes and variants. Across 13 European countries over 5 years, norovirus GII.4 strains predominated in gastroenteritis outbreaks, particularly in health care settings and person-to-person transmission.
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