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swine flu

noun, Pathology
a highly contagious form of influenza caused by infection with a filterable virus first isolated from swine.
Origin of swine flu
1920-25 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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swine flu
A highly contagious form of influenza seen in swine, caused by a virus of the family Orthomyxoviridae. The infection is communicable to humans and caused a worldwide epidemic in 1918.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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