MeSH Browser

MeSH Heading: Influenza A Virus, H2N2 Subtype
Tree Number(s): B04.820.480.968.405.400.250
Unique ID: D053121
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D053121
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 comprised of the surface proteins hemagglutinin 2 and neuraminidase 2. The H2N2 subtype was responsible for the Asian flu pandemic of 1957.
Entry Term(s): Avian Influenza A(H2N2) Virus; H2N2; H2N2 Bird Flu Virus; H2N2 Influenza Virus; H2N2 Virus; H2N2 subtype; Influenza A(H2N2) Virus
Registry Numbers: txid114729
Previous Indexing: Influenza A Virus (1975-2005)
Public MeSH Note: 2006
History Note: 2006
Date Introduced: 2006/01/01
Last Updated: 2026/01/01

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, H2N2 Subtype Preferred

Concept UI: M0491453
Registry Numbers: txid114729
Scope Note: A subtype of INFLUENZA A VIRUS comprised of the surface proteins hemagglutinin 2 and neuraminidase 2. The H2N2 subtype was responsible for the Asian flu pandemic of 1957.
Terms: Influenza A Virus, H2N2 Subtype Preferred Term
Term UI T658136
Date11/10/2005
LexicalTag ABX
ThesaurusID NLM (2006); Avian Influenza A(H2N2) Virus
Term UI T001147074
Date02/12/2025
LexicalTag NON
ThesaurusID NLM (2025); H2N2
Term UI T001147075
Date02/12/2025
LexicalTag NON
ThesaurusID NLM (2025); H2N2 Bird Flu Virus
Term UI T001147076
Date02/12/2025
LexicalTag NON
ThesaurusID NLM (2025); H2N2 Influenza Virus
Term UI T001147077
Date02/12/2025
LexicalTag NON
ThesaurusID NLM (2025); H2N2 subtype
Term UI T001133240
Date02/23/2023
LexicalTag NON
ThesaurusID NLM (2024); H2N2 Virus
Term UI T658137
Date11/10/2005
LexicalTag ABX
ThesaurusID NLM (2006); Influenza A(H2N2) Virus
Term UI T001147078
Date02/12/2025
LexicalTag NON
ThesaurusID NLM (2025)

Influenza A Virus, H2N2 Subtype MeSH Descriptor Data 2026