H2N2 virus

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H2N2 virus

Also known as: Asian flu virus, influenza A subtype H2N2

Learn about this topic in these articles:

Asian flu of 1957

In 1957 flu pandemic
… known as influenza A subtype H2N2. Research has indicated that this virus was a reassortant (mixed species) strain, originating from strains of avian influenza and human influenza viruses. In the 1960s the human H2N2 strain underwent a series of minor genetic modifications, a process known as antigenic drift. These slight…
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Hong Kong flu of 1968

In 1968 flu pandemic
…virus, or influenza A subtype H2N2, is thought to have given rise to H3N2 through a process called antigenic shift, in which the hemagglutinin (H) antigen (a substance that stimulates an immune response) on the outer surface of the virus underwent genetic mutation to produce the new H3 antigen. Because…
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