Influenza A virus subtype H2N2

Influenza A virus subtype H2N2
Virus classification
(unranked):	Virus
Realm:	Riboviria
Kingdom:	Orthornavirae
Phylum:	Negarnaviricota
Class:	Insthoviricetes
Order:	Articulavirales
Family:	Orthomyxoviridae
Genus:	Alphainfluenzavirus
Species:	Influenza A virus
Serotype:	Influenza A virus subtype H2N2

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.^[1]^[2] The geographic spreading of the 1889 Russian flu has been studied and published.^[3]

^ Hilleman, Maurice R. (2002). "Realities and enigmas of human viral influenza: pathogenesis, epidemiology and control". Vaccine. 20 (25–26): 3068–3087. CiteSeerX 10.1.1.523.7697. doi:10.1016/S0264-410X(02)00254-2. PMID 12163258.
^ "The Influenza H5N1 Report". Pliva.com. April 2, 1998. Archived from the original on 24 October 2004.{{cite web}}: CS1 maint: unfit URL (link)
^ Alexis Madrigal (April 26, 2010). "1889 Pandemic Didn't Need Planes to Circle Globe in 4 Months". Wired. Wired Science. Archived from the original on April 29, 2010. Retrieved April 28, 2010.

[1] Hilleman, Maurice R. (2002). "Realities and enigmas of human viral influenza: pathogenesis, epidemiology and control". Vaccine. 20 (25–26): 3068–3087. CiteSeerX 10.1.1.523.7697. doi:10.1016/S0264-410X(02)00254-2. PMID 12163258.

[2] "The Influenza H5N1 Report". Pliva.com. April 2, 1998. Archived from the original on 24 October 2004.{{cite web}}: CS1 maint: unfit URL (link)

[3] Alexis Madrigal (April 26, 2010). "1889 Pandemic Didn't Need Planes to Circle Globe in 4 Months". Wired. Wired Science. Archived from the original on April 29, 2010. Retrieved April 28, 2010.

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