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Influenza A virus subtype H2N2

Influenza A virus subtype H2N2

Subtype of Influenza A virus

From Wikipedia, the free encyclopedia

Influenza A virus subtype H2N2 (A/H2N2) is a subtype of Influenza A virus. H2N2 has mutated into various strains including the "Asian flu" strain (now extinct in the wild), H3N2, and various strains found in birds. It is also suspected of causing a human pandemic in 1889.