swine influenza
noun
: influenza A of swine that is caused by any of several subtypes (such as H1N1 or H3N2) of the causative orthomyxovirus and in which sporadic transmission to humans has occurred compare swine flu
Example Sentences
Recent Examples on the Web The lines show the path of swine influenza H1N2 along common hog routes over time. 
Katherine Harmon, Scientific American, 21 Sep. 2011 From these samples, researchers identified 179 swine influenza viruses -- but not all of them posed a concern. Jessie Yeung, CNN, 30 June 2020 In 2015, Gray and his colleagues launched a five-year study to examine the transmission of swine influenza in large pig farms in China. Cassandra Willyard, Scientific American, 18 Sep. 2019 The swine influenza of 2009 turned out not to be the grave danger that health authorities feared. Maryn Mckenna, Smithsonian, 25 Oct. 2017
Katherine Harmon, Scientific American, 21 Sep. 2011 From these samples, researchers identified 179 swine influenza viruses -- but not all of them posed a concern. Jessie Yeung, CNN, 30 June 2020 In 2015, Gray and his colleagues launched a five-year study to examine the transmission of swine influenza in large pig farms in China. Cassandra Willyard, Scientific American, 18 Sep. 2019 The swine influenza of 2009 turned out not to be the grave danger that health authorities feared. Maryn Mckenna, Smithsonian, 25 Oct. 2017 Word History
First Known Use
1919, in the meaning defined above
Medical Definition
swine influenza
noun
: influenza of swine that is marked by fever, lethargy, labored breathing, coughing, and anorexia and that is typically not fatal but may be complicated by development of bronchopneumonia or secondary bacterial infection see swine flu
Note: Swine influenza is caused by any of several subtypes (such as H1N1 or H3N2) of an orthomyxovirus (species Influenza A virus of the genus Influenzavirus A). Strains of the virus subtypes have been transmitted to humans, sometimes causing outbreaks.