Reassortant avian influenza A(H5N1) viruses with H9N2-PB1 gene in poultry, Bangladesh

Emerg Infect Dis. 2013 Oct;19(10):1630-4. doi: 10.3201/eid1910.130534.

Abstract

Bangladesh has reported a high number of outbreaks of highly pathogenic avian influenza (HPAI) (H5N1) in poultry. We identified a natural reassortant HPAI (H5N1) virus containing a H9N2-PB1 gene in poultry in Bangladesh. Our findings highlight the risks for prolonged co-circulation of avian influenza viruses and the need to monitor their evolution.

Keywords: Bangladesh; H9N2; H9N2-PB1; HPAI; Highly pathogenic avian influenza virus H5N1; avian influenza; avian influenza A(H5N1); genes; influenza; influenza (H5N1); phylogenetic analysis; reassortant; reassortment; viruses; zoonoses.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bangladesh / epidemiology
  • Chickens / virology
  • Cloaca / virology
  • Disease Outbreaks*
  • Evolution, Molecular
  • Influenza A Virus, H5N1 Subtype / genetics*
  • Influenza A Virus, H5N1 Subtype / isolation & purification
  • Influenza A Virus, H9N2 Subtype / genetics*
  • Influenza A Virus, H9N2 Subtype / isolation & purification
  • Influenza in Birds / epidemiology*
  • Influenza in Birds / virology
  • Phylogeny
  • Reassortant Viruses / genetics*
  • Reassortant Viruses / isolation & purification
  • Recombination, Genetic
  • Viral Proteins / genetics*

Substances

  • Viral Proteins
  • influenza virus polymerase basic protein 1