MeSH Browser

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): H1N1 Influenza Virus; H1N1 Virus; H1N1 subtype; H1N1v Viruses; Influenza A (H1N1)pdm09; Influenza A (H1N1)pdm09 Virus; Influenza A H1N1, Variant Virus; Swine-Origin Influenza A H1N1 Virus
Previous Indexing: Influenza A Virus (1978-2005)
See Also: Influenza Pandemic, 1918-1919
Public MeSH Note: 2006
History Note: 2006
Date Established: 2006/01/01
Date of Entry: 2005/11/10
Revision Date: 2023/04/05

Allowable Qualifiers: chemistry (CH)

classification (CL)

drug effects (DE)

enzymology (EN)

genetics (GE)

growth & development (GD)

immunology (IM)

isolation & purification (IP)

metabolism (ME)

pathogenicity (PY)

physiology (PH)

radiation effects (RE)

ultrastructure (UL)

Viruses [B04]
- RNA Viruses [B04.820]
  - Negative-Sense RNA Viruses [B04.820.480]
    - Orthomyxoviridae [B04.820.480.968]
      - Alphainfluenzavirus [B04.820.480.968.405]
        
        Influenza A virus [B04.820.480.968.405.400]
        
        Influenza A Virus, H10N7 Subtype [B04.820.480.968.405.400.105]
        
        Influenza A Virus, H10N8 Subtype [B04.820.480.968.405.400.106]
        
        Influenza A Virus, H1N1 Subtype [B04.820.480.968.405.400.214]
        
        Influenza A Virus, H1N2 Subtype [B04.820.480.968.405.400.216]
        
        Influenza A Virus, H2N2 Subtype [B04.820.480.968.405.400.250]
        
        Influenza A Virus, H3N2 Subtype [B04.820.480.968.405.400.300]
        
        Influenza A Virus, H3N8 Subtype [B04.820.480.968.405.400.350]
        
        Influenza A Virus, H5N1 Subtype [B04.820.480.968.405.400.500]
        
        Influenza A Virus, H5N2 Subtype [B04.820.480.968.405.400.505]
        
        Influenza A Virus, H5N6 Subtype [B04.820.480.968.405.400.552]
        
        Influenza A Virus, H5N8 Subtype [B04.820.480.968.405.400.598]
        
        Influenza A Virus, H7N1 Subtype [B04.820.480.968.405.400.690]
        
        Influenza A Virus, H7N2 Subtype [B04.820.480.968.405.400.692]
        
        Influenza A Virus, H7N3 Subtype [B04.820.480.968.405.400.694]
        
        Influenza A Virus, H7N7 Subtype [B04.820.480.968.405.400.700]
        
        Influenza A Virus, H7N9 Subtype [B04.820.480.968.405.400.800]
        
        Influenza A Virus, H9N2 Subtype [B04.820.480.968.405.400.900]

Influenza A Virus, H1N1 Subtype Preferred

Concept UI: M0491451
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.
Terms: Influenza A Virus, H1N1 Subtype Preferred Term
Term UI T658132
Date11/10/2005
LexicalTag ABX
ThesaurusID NLM (2006); H1N1 subtype
Term UI T001133275
Date02/23/2023
LexicalTag NON
ThesaurusID NLM (2024); H1N1 Virus
Term UI T658133
Date11/10/2005
LexicalTag ABX
ThesaurusID NLM (2006); H1N1 Influenza Virus
Term UI T001132893
Date02/14/2023
LexicalTag NON
ThesaurusID NLM (2024)

Swine-Origin Influenza A H1N1 Virus Narrower

Influenza A (H1N1)pdm09 Virus Narrower

Influenza A H1N1, Variant Virus Related

Influenza A Virus, H1N1 Subtype MeSH Descriptor Data 2025