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swine flu
noun
: swine influenza
also
: influenza A of humans that is caused by a different strain of an orthomyxovirus subtype (H1N1) from those found in swine and that is marked especially by fever, sore throat, cough, chills, body aches, fatigue, and sometimes diarrhea and vomiting
Examples of swine flu in a Sentence
Recent Examples on the Web
The uptick in bird flu cases comes amid an ongoing surge of seasonal influenza that is at record highs nationwide in emergency rooms and hospitals, above peaks seen during the 2009 swine flu pandemic.
—
Alexander Tin, CBS News, 14 Feb. 2025
Doctors' visits for flu highest in 15 years, most since swine flu pandemic: CDC
During the same week, 7.9% of emergency department visits were due to flu compared with 3.2% the same time last year, according to the CDC data.
—
Youri Benadjaoud, ABC News, 14 Feb. 2025
In 2009 and 2010, swine flu led to more than 12,000 deaths in the U.S.; roughly 10 percent of the victims were under 18.
—
Nicholas Florko, The Atlantic, 11 Feb. 2025
That happened in 1976, when President Gerald Ford ordered mass vaccination against swine flu to head off a pandemic.
—
Emily Mullin, WIRED, 22 Jan. 2025
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Word History
First Known Use
1919, in the meaning defined above
Dictionary Entries Near swine flu
Cite this Entry
“Swine flu.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/swine%20flu. Accessed 21 Feb. 2025.
Medical Definition
swine flu
noun
: swine influenza
also
: influenza of humans that is caused by a subtype (H1N1) of an orthomyxovirus (species Influenza A virus of the genus Influenzavirus A) originating in swine and is marked especially by fever, sore throat, cough, chills, body aches, fatigue, and sometimes diarrhea and vomiting
Among the swine flu cases in the United States, none had had any contact with pigs … —
Marc Lacey and Donald G. McNeil Jr., The New York Times
As swine flu spreads from person to person around the world, it is most often being transmitted by coughing or sneezing … —
Laura Landro, The Wall Street Journal
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