Key result
During the 2016-2017 winter season in France, norovirus outbreaks were predominantly driven by the re-emergent GII.P4 2009-GII.4 2012 (28%) and new recombinant strains GII.P16-GII.4 2012 (24%) and GII.P16-GII.2 (14%).
Observational
Identified the emergence of new recombinant norovirus strains GII.P16-GII.4 2012 and GII.P16-GII.2 in France during the 2016-2017 winter season.
New recombinant norovirus strains drove French outbreaks; leaves open need for updated surveillance and vaccine strain selection.
An early increase in outbreaks of norovirus gastroenteritis characterised at the French National Reference Centre occurred this winter season. They were concurrent with an unusual pattern of circulating strains, with three predominant genotypes: the re-emergent variant GII.P4 2009-GII.4 2012 found in 28% of norovirus outbreaks and two new emergent recombinant strains GII.P16-GII.4 2012 and GII.P16-GII.2 never before observed in France, found in 24% and 14% of norovirus outbreaks, respectively.
No takes yet. Share an insight, caveat, or question.
Bidalot et al. (2017) conducted an observational in Norovirus gastroenteritis. Norovirus strains (GII.P4 2009-GII.4 2012, GII.P16-GII.4 2012, GII.P16-GII.2) was evaluated on Proportion of norovirus outbreaks by genotype. During the 2016-2017 winter season in France, norovirus outbreaks were predominantly driven by the re-emergent GII.P4 2009-GII.4 2012 (28%) and new recombinant strains GII.P16-GII.4 2012 (24%) and GII.P16-GII.2 (14%).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: