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Influenza A Virus, H1N1 Subtype MeSH Descriptor Data 2026


MeSH Heading
Influenza A Virus, H1N1 Subtype
Tree Number(s)
B04.820.480.968.405.400.214
Unique ID
D053118
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D053118
Annotation
infection: coordinate IM with INFLUENZA, HUMAN (IM) in humans, or INFLUENZA IN BIRDS (IM) in birds, or ORTHOMYXOVIRIDAE INFECTIONS (IM) in other animals
Scope Note
A subtype of INFLUENZA A VIRUS with the surface proteins hemagglutinin 1 and neuraminidase 1. The H1N1 subtype was responsible for the Spanish flu pandemic of 1918 and 2009 H1N1 pandemic.
Entry Term(s)
Avian Influenza A(H1N1) Virus
H1N1
H1N1 Bird Flu Virus
H1N1 Influenza Virus
H1N1 Virus
H1N1 subtype
H1N1v Viruses
Influenza A (H1N1)pdm09
Influenza A (H1N1)pdm09 Virus
Influenza A H1N1, Variant Virus
Influenza A(H1N1) Virus
Swine-Origin Influenza A H1N1 Virus
Registry Numbers
txid114727
Previous Indexing
Influenza A Virus (1978-2005)
See Also
Influenza Pandemic, 1918-1919
Public MeSH Note
2006
History Note
2006
Date Introduced
2006/01/01
Last Updated
2026/01/01
Influenza A Virus, H1N1 Subtype Preferred
Swine-Origin Influenza A H1N1 Virus Narrower
Influenza A (H1N1)pdm09 Virus Narrower
Influenza A H1N1, Variant Virus Related
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