Influenza A virus causes influenza in birds and some mammals, and is the only species of influenza virus A. Influenza virus A is a genus of the Orthomyxoviridae family of viruses. Strains of all subtypes of influenza A virus have been isolated from wild birds, although disease is uncommon. Some isolates of influenza A virus cause severe disease bo...
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http://en.wikipedia.org/wiki/Influenza_A_virus
One of three types of virus that cause the illness called influenza (flu). The influenza A virus can infect people, birds, pigs, horses, and other animals. It is the main cause of most influenza epidemics.
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http://www.cancer.gov/dictionary?expand=I
The type species of the genus influenzavirus a, b that causes influenza and other diseases in humans and animals. Antigenic variation occurs frequently between strains, allowing classification into subtypes and variants. Transmission is by aerosol (human and most non-aquatic hosts) or waterborne (ducks). ... (12 Dec 1998) ...
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influenza B virusinfluenza C virus species in the genera Influenzavirus A, Influenzavirus B, and Influenzavirus C; see influenza virus.
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No exact match found.
