- a highly contagious form of influenza caused by infection with a filterable virus first isolated from swine.
Origin of swine flu
First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for swine flu
When the swine-flu virus reached Hong Kong yesterday, China was ready.Is the U.S. Prepared for a Flu Pandemic?
Joshua Cooper Ramo
May 2, 2009
On his 100 days marker, with the swine-flu fear running high, Ford turns out to offer the most relevant precedent.Will Obama Stumble Like Ford?
April 29, 2009
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.