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Influenzavirus A
(redirected from Type A influenza)

   Also found in: Wikipedia 0.01 sec.
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.

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.


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All avian influenza (AI) viruses are type A influenza virus in the virus family of Orthomyxoviridae and all known strains of influenza A virus infect birds.
A statement from SAG read: "We have detected the presence of a virus type A influenza in two groups of turkeys.
Type A influenza is most often responsible for large epidemics.
 
 
 
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