Influenza A virus subtype H2N2
Influenza A virus subtype H2N2 is a subtype of Influenza A virus. H2N2 has mutated into various strains including the "Asian flu" strain, H3N2, and various strains found in birds. It is also suspected of causing a human pandemic in 1889.
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Genus: Alphainfluenzavirus
Species: Influenza A virus