Organisms

H5N1 Subtype Influenza A Virus

A subtype of INFLUENZA A VIRUS comprised of the surface proteins hemagglutinin 5 and neuraminidase 1. The H5N1 subtype, frequently referred to as the bird flu virus, is endemic in wild birds and very contagious among both domestic (POULTRY) and wild birds. It does not usually infect humans, but some cases have been reported.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A subtype of INFLUENZA A VIRUS comprised of the surface proteins hemagglutinin 5 and neuraminidase 1. The H5N1 subtype, frequently referred to as the bird flu virus, is endemic in wild birds and very contagious among both domestic (POULTRY) and wild birds. It does not usually infect humans, but some cases have been reported.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

12 entry terms
  • Avian Influenza A(H5N1) Virus
  • H5N1
  • H5N1 Avian Influenza Virus
  • H5N1 Bird Flu Virus
  • H5N1 Influenza Virus
  • H5N1 Virus
  • H5N1 subtype
  • Influenza A Virus, H5N1 Subtype
  • Influenza A(H5N1) Virus
  • H5N1 Viruses
  • H5N1 subtypes
  • Virus, H5N1

MeSH Record

Aspects Covered

13 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, genetics, growth & development, immunology, isolation & purification, metabolism, pathogenicity, physiology, radiation effects, ultrastructure.

MeSH Record

Indexing Annotation

infection: coordinate IM with INFLUENZA, HUMAN (IM) in humans, or INFLUENZA IN BIRDS (IM) in birds, or ORTHOMYXOVIRIDAE INFECTIONS (IM) in other animals

MeSH Record

History Note

2006

MeSH Record

Previous Indexing

  • Influenza A Virus (1988-2005)

MeSH Hierarchy

Tree Number

MeSH Record

NLM Classification

QW 168.5.O7

AMA Style

References

  1. National Library of Medicine. H5N1 Subtype Influenza A Virus. Medical Subject Headings (MeSH). 2026. Unique ID D053124. http://id.nlm.nih.gov/mesh/2026/D053124
  2. H5N1 Subtype Influenza A Virus. In: Wikipedia. https://en.wikipedia.org/wiki/Influenza_A_virus_subtype_H5N1
  3. H5N1 Subtype Influenza A Virus. In: Wikidata. https://www.wikidata.org/wiki/Q160122