Orthomyxovirus | |
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Virus classification | |
Group: | Group V ((−)ssRNA) |
Order: | Unassigned |
Family: | Orthomyxoviridae |
Genera | |
The Orthomyxoviruses (ορθός, orthos, Greek for "straight"; μυξα, myxa, Greek for "mucus") are a family of RNA viruses that includes seven genera: Influenza virus A, Influenza virus B, Influenza virus C, Influenza virus D, Isavirus, Thogotovirus and Quaranjavirus. The first three genera contain viruses that cause influenza in vertebrates, including birds (see also avian influenza), humans, and other mammals. Isaviruses infect salmon; the thogotoviruses are arboviruses, infecting vertebrates and invertebrates, such as ticks and mosquitoes.
The three genera of Influenza virus, which are identified by antigenic differences in their nucleoprotein and matrix protein, infect vertebrates as follows:
In a phylogenetic-based taxonomy, the category "RNA virus" includes the category "negative-sense ssRNA virus", which includes the Order "Mononegavirales", and the Family "Orthomyxovirus" (among others). The genera-associated species and serotypes of Orthomyxovirus are shown in the following table.