Emergence of new recombinant noroviruses GII.p16-GII.4 and GII.p16-GII.2, France, winter 2016 to 2017

Euro Surveill. 2017 Apr 13;22(15):30508. doi: 10.2807/1560-7917.ES.2017.22.15.30508.

Abstract

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.

Keywords: Norovirus; co-circulation; emergence; gastroenteritis; recombinants.

MeSH terms

  • Caliciviridae Infections / epidemiology
  • Caliciviridae Infections / virology*
  • Communicable Diseases, Emerging / epidemiology*
  • Communicable Diseases, Emerging / virology*
  • Feces / virology
  • France / epidemiology
  • Gastroenteritis / epidemiology*
  • Gastroenteritis / virology*
  • Humans
  • Norovirus / genetics*
  • Norovirus / isolation & purification
  • Reassortant Viruses / genetics
  • Reassortant Viruses / isolation & purification
  • Seasons*