swine flu

:  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, 25 Apr. 2009 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, 29 Sept. 2009