Increased Detection of Emergent Recombinant Norovirus GII.P16-GII.2 Strains in Young Adults, Hong Kong, China, 2016-2017

Emerg Infect Dis. 2017 Nov;23(11):1852-1855. doi: 10.3201/eid2311.170561.

Abstract

A new recombinant norovirus GII.P16-GII.2 outnumbered pandemic GII.4 as the predominant GII genotype in the winter of 2016-2017 in Hong Kong, China. Half of hospitalized case-patients were older children and adults, including 13 young adults. This emergent norovirus targets a wider age population compared with circulating pandemic GII.4 strains.

Keywords: China; GII; Hong Kong; gastroenteritis; older children; recombinant norovirus; viral load; viruses; young adults.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Caliciviridae Infections / epidemiology
  • Caliciviridae Infections / virology
  • Child
  • Child, Preschool
  • Communicable Diseases, Emerging / epidemiology*
  • Communicable Diseases, Emerging / virology
  • Disease Outbreaks*
  • Female
  • Gastroenteritis / epidemiology*
  • Gastroenteritis / virology
  • Genotype
  • Hong Kong / epidemiology
  • Humans
  • Infant
  • Male
  • Middle Aged
  • Norovirus / genetics*
  • Norovirus / isolation & purification
  • Phylogeny
  • Reassortant Viruses
  • Seasons
  • Young Adult