Novel human H7N9 influenza virus in China

Integr Zool. 2014 Jun;9(3):372-5. doi: 10.1111/1749-4877.12047.

Abstract

Outbreaks of H7N9 avian influenza in humans in 5 provinces and 2 municipalities of China have reawakened concern that avian influenza viruses may again cross species barriers to infect the human population and thereby initiate a new influenza pandemic. Evolutionary analysis shows that human H7N9 influenza viruses originated from the H9N2, H7N3 and H11N9 avian viruses, and that it is as a novel reassortment influenza virus. This article reviews current knowledge on 11 subtypes of influenza A virus from human which can cause human infections.

Keywords: China; H7N9; human; influenza; virus.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Biological Evolution
  • Birds
  • China
  • Humans
  • Influenza A Virus, H7N9 Subtype / genetics
  • Influenza A Virus, H7N9 Subtype / isolation & purification
  • Influenza A Virus, H7N9 Subtype / physiology*
  • Influenza A virus / genetics
  • Influenza A virus / isolation & purification
  • Influenza A virus / physiology
  • Influenza in Birds / epidemiology
  • Influenza in Birds / virology
  • Influenza, Human / epidemiology
  • Influenza, Human / virology*
  • Reassortant Viruses / genetics
  • Reassortant Viruses / isolation & purification
  • Reassortant Viruses / physiology*