A parasite is an animal or plant that lives in or on another
animal or plant (called the host). A parasite gets nourishment from its host
without helping or killing the host.
Last Updated:September 11, 2008
Author:Debby Golonka, MPH
Medical Review:Michael J. Sexton, MD - Pediatrics & Donald Sproule, MD, CM, CCFP, FCFP - Family Medicine