Influenza A virus subtype H3N8

Influenza A virus subtype H3N8
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 H3N8

H3N8 is a subtype of the species Influenza A virus that is endemic in birds, horses and dogs. It is the main cause of equine influenza and is also known as equine influenza virus. In 2011, it was reported to have been found in seals.^[1] Cats have been experimentally infected with the virus, leading to clinical signs, shedding of the virus and infection of other cats.^[2] In 2022 and 2023, three people in China were infected with H3N8,^[3] with one fatality, marking the first time a human has died from this strain of flu.^[4]

^ McGrath, Matt (31 July 2012). "New flu virus found in seals concerns scientists". BBC News. Retrieved 2012-07-31.
^ Su S, Wang L, Fu X, et al. (December 2014). "Equine influenza A(H3N8) virus infection in cats". Emerging Infectious Diseases. 20 (12): 2096–2099. doi:10.3201/eid2012.140867. PMC 4257791. PMID 25417790.
^ Cite error: The named reference 3rdcase was invoked but never defined (see the help page).
^ "First H3N8 bird flu death reported in China, says WHO". WION. 12 April 2023. Retrieved 2023-04-12.

[1] McGrath, Matt (31 July 2012). "New flu virus found in seals concerns scientists". BBC News. Retrieved 2012-07-31.

[2] Su S, Wang L, Fu X, et al. (December 2014). "Equine influenza A(H3N8) virus infection in cats". Emerging Infectious Diseases. 20 (12): 2096–2099. doi:10.3201/eid2012.140867. PMC 4257791. PMID 25417790.

[3rdcase-3] Cite error: The named reference 3rdcase was invoked but never defined (see the help page).

[4] "First H3N8 bird flu death reported in China, says WHO". WION. 12 April 2023. Retrieved 2023-04-12.

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