Evolution and Reassortment of H6 Subtype Avian Influenza Viruses

Viruses. 2023 Jul 13;15(7):1547. doi: 10.3390/v15071547.

Abstract

The H6 subtype of avian influenza virus (H6 AIV) is the most detected AIV subtype in poultry and wild birds. It causes economic losses to the poultry industry, and the most important, H6 AIV may have the ability to infect mammals, which is a great threat to public health security. In addition, the H6 subtype can serve as a precursor to providing internal genes for other highly pathogenic AIVs, posing a potential threat. H6 AIV currently face to the high positive detection rate and harmless nature of H6 AIV and because not highly effective H6 subtype vaccine available on the market. In this study, we focused on the prevalence of H6 AIV in poultry and wild birds, phylogenetic analysis, genetic variation characteristics, selection analysis, and prevention and control to provide relevant references for the scientific prevention and control of H6 AIV in future.

Keywords: H6 subtype; avian influenza virus; genetics and evolution; prevention and control; reassortment.

Publication types

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

MeSH terms

  • Animals
  • Animals, Wild
  • Birds
  • Influenza A virus* / genetics
  • Influenza in Birds* / epidemiology
  • Mammals
  • Phylogeny
  • Poultry

Grants and funding

This work was supported by the project from Forestry administration of Guangdong Province (No. K23051), Key Laboratory of Fishery Pharmaceutics Creation, Ministry of Agriculture, China (B19136) and program for scientific research start-up funds of Guangdong Ocean university (No. 521202292). This study was also supported by Guangdong Science and Technology Innovation Strategy Special Fund (College Student Science and Technology Innovation Cultivation) Project (pdjh2023b2049).