Patient zero (also known as the "index case") is the first documented patient in a disease epidemic within a population.
Patient Zero or Patient 0 may also refer to:
Arts and entertainment Songs "Patient Zero" (song), by Taylor Swift, 2026 "Patient Zero", by Aimee Mann from the 2017 album Mental Illness "Patient Zero", by Cypecore from the 2024 album Make Me Real "Patient Zero", by Enterprise Earth from the 2015 album Patient 0 "Patient Zero", by Hammerfall from the 2011 album Infected
Film and television Patient Zero (film), 2018 science fiction horror "Patient Zero", 2001 television episode of the Outer Limits
Other uses in arts and entertainment Weasel (Marvel Comics), also known as Patient Zero, supervillain Patient 0 (Enterprise Earth album), 2015 "Patient Zero" (audio drama), 2009 episode of Doctor Who: The Monthly Adventures Patient Zero: A Joe Ledger Novel, 2009, by Jonathan Maberry Patient Zero, 2005 demoscene production by Farbrausch Patient Zero, campaign in the 2016 video game Hitman "Patient Zero", 2001 short story by Tananarive Due
People Gaëtan Dugas (1952–1984), Canadian flight attendant dubbed "Patient Zero" in the AIDS epidemic
See also Cabin Fever: Patient Zero, 2014 science fiction horror film Killing Patient Zero, 2019 Canadian documentary about Gaëtan Dugas Zero Patience, 1993 musical about AIDS