Influenzavirus A

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Influenzavirus

 [in″floo-en´zah-vi″rus]
former genus name for the viruses that cause influenza, now found to be two different genera, which were named influenzavirus A and influenzavirus B.
Influenzavirus A a genus of viruses containing the agent of influenza A. See also influenza virus.
Influenzavirus B a genus of viruses containing the agent of influenza B. See also influenza virus.
Influenzavirus C a genus of viruses containing the agent of influenza C. See also influenza virus.

Influenzavirus A

/In·flu·en·za·vi·rus A/ (in″floo-en´zah-vi″rus) a genus of viruses of the family Orthomyxoviridae containing the agent of influenza A. See influenza virus, under virus> .

Influenzavirus A

a genus of viruses of the family Orthomyxoviridae containing the agent of influenza A. It is usually the cause of epidemics and pandemics. It is divided into subgroups based on two surface proteins: neuraminidase and haemoglutinin. Vaccination against influenza A is available. See also influenza.
References in periodicals archive ?
Other local hospitals are seeing more of the Type A flu as well.
The vast majority was caused by a nasty version of Type A flu, the so-called H3N2 branch of the viral family that tends to trigger more pneumonia and other complications than other forms of influenza and is particularly risky to seniors.