Influenza A Virus Antibodies in Ducks and Introduction of Highly Pathogenic Influenza A(H5N1) Virus, Tennessee, USA

Emerg Infect Dis. 2024 Dec;30(12):2647-2650. doi: 10.3201/eid3012.241126.

Abstract

Testing of ducks in Tennessee, United States, before introduction of highly pathogenic influenza A(H5N1) virus demonstrated a high prevalence of antibodies to influenza A virus but very low prevalence of antibodies to H5 (25%) or H5 and N1 (13%) subtypes. Antibody prevalence increased after H5N1 introduction.

Keywords: H5N1; Tennessee; United States; avian influenza virus; ducks; highly pathogenic avian influenza; viruses.

MeSH terms

  • Animals
  • Antibodies, Viral* / blood
  • Antibodies, Viral* / immunology
  • Ducks* / virology
  • Influenza A Virus, H5N1 Subtype* / immunology
  • Influenza A virus / immunology
  • Influenza in Birds* / epidemiology
  • Influenza in Birds* / virology
  • Seroepidemiologic Studies
  • Tennessee / epidemiology

Substances

  • Antibodies, Viral