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a worldwide influenza, apparently originating in China in the summer of 1957, which produces a milder disease than that of the worldwide pandemic of 1917-1919.
Farlex Partner Medical Dictionary © Farlex 2012
Influenza caused by a strain of the most common influenza virus (type A), which was first isolated in China during a 1957 epidemic. Also called Asian flu.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Influenza caused by a variant strain of influenza virus type A.
See also: influenza
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