influenza (disambiguation) influenza (disambiguation) influenza is a disease commonly called the flu. look up influenza or influenza in wiktionary, the free dictionary. it may also refer to: disease flu influenzavirus, the viruses that cause influenza disease influenza epidemic, "the influenza" mass disease for a given region in a given year influenza pandemic, "the influenza" global mass disease for a given year seasonal influenza, "the influenza" for a given year 1918 influenza pandemic other influenza-like illness, illness that resembles, mistaken for, called influenza intestinal influenza (stomach flu), gastroenteritis not necessarily related to influenza parainfluenza songs influenza (2000 song), a song by kruder & dorfmeister influenza (1997 song), a b-side by tanya donelly off the album lovesongs for underdogs influenza (1983 song), a song by gene loves jezebel off the album promise (gene loves jezebel album) influenza (1982 song), a song by todd rundgren off the album the ever popular tortured artist effect other uses haemophilus influenzae (h. influenzae) a bacterium mistakenly thought to cause influenza plos currents: influenza (2009–13), a defunct research journal influenza: the musical (even stevens), a 2002 episode of even stevens