A species that acts as a secondary or subsequent intermediate host for a parasite with a complex life cycle that usually involves two or more species. The parasite does not undergo developmental stages in the paratenic host but exists in a quiescent or encysted state until it has an opportunity to move to a definitive host species. This occurs, for instance, at the intermediate host stage of some nematode parasites. See also parasitism.
Subjects: Public Health and Epidemiology.