Potential Threats to Human Health from Eurasian Avian-Like Swine Influenza A(H1N1) Virus and Its Reassortants

Emerg Infect Dis. 2022 Jul;28(7):1489-1493. doi: 10.3201/eid2807.211822. Epub 2022 Jun 9.

Abstract

During 2018-2020, we isolated 32 Eurasian avian-like swine influenza A(H1N1) viruses and their reassortant viruses from pigs in China. Genomic testing identified a novel reassortant H3N1 virus, which emerged in late 2020. Derived from G4 Eurasian H1N1 and H3N2 swine influenza viruses. This virus poses a risk for zoonotic infection.

Keywords: China; H1N1; avian-like swine influenza A(H1N1); influenza; respiratory infections; swine flu; viruses; zoonoses.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Birds
  • Humans
  • Influenza A Virus, H1N1 Subtype* / genetics
  • Influenza A Virus, H3N2 Subtype / genetics
  • Influenza A virus
  • Influenza, Human* / epidemiology
  • Orthomyxoviridae Infections* / epidemiology
  • Orthomyxoviridae Infections* / veterinary
  • Phylogeny
  • Reassortant Viruses / genetics
  • Swine
  • Swine Diseases* / epidemiology

Substances

  • H3N1 virus