definitive host


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Related to definitive host: paratenic host, reservoir host

host

 [hōst]
1. an animal or plant that harbors and provides sustenance for another organism (the parasite).
2. the recipient of an organ or other tissue derived from another organism (the donor).
accidental host one that accidentally harbors an organism that is not ordinarily parasitic in the particular species.
definitive host (final host) a host in which a parasite attains sexual maturity.
intermediate host a host in which a parasite passes one or more of its asexual stages; usually designated first and second, if there is more than one.
paratenic host a potential or substitute intermediate host that serves until the appropriate definitive host is reached, and in which no development of the parasite occurs; it may or may not be necessary to the completion of the parasite's life cycle.
host of predilection the host preferred by a parasite.
primary host definitive host.
reservoir host an animal (or species) that is infected by a parasite, and which serves as a source of infection for humans or another species.
secondary host intermediate host.
transfer host one that is used until the appropriate definitive host is reached, but is not necessary to completion of the life cycle of the parasite.

de·fin·i·tive host

one in which a parasite reaches the adult or sexually mature stage.
Synonym(s): final host

definitive host

n.
An organism in or on which a parasite reaches sexual maturity.

definitive host

any host organism in which a parasite reproduces sexually. The female Anopheles mosquito is the definitive host for malaria. Humans are definitive hosts for pinworms, schistosomes, and tapeworms. Also called primary host. Compare dead-end host, intermediate host, reservoir host. See also host.

de·fin·i·tive host

(dĕ-fin'i-tiv hōst)
One in which a parasite reaches the adult or sexually mature stage.

definitive host

the host in which the infectious agent in question undergoes the adult and sexual stage of its reproduction. Called also final host.
References in periodicals archive ?
Indeed, infected gammarids are more preyed upon by the definitive hosts of parasites than are uninfected gammarids (Bethel and Holmes, 1977; Perrot-Minnot et al.
As seen in Table 6-1, trematodes are named according to the tissue they inhabit in the definitive host (for example, Fasciola hepatica is the liver fluke).
In Mexico, most developmental stages of the parasite were described in detail by Arizmendi (1992) from naturally infected first and second intermediate hosts and experimental definitive host.
In many complex parasite life cycles, parasites have been shown to modify the behavior of their intermediate hosts to enhance the probability of predation by the definitive host (Bethel and Holmes 1973; Camp and Huizinga 1979; Barnard and Behnke 1990; Combes 1991).
The peculiar epidemiology of Dracunculus medinensis (Guinea worm), the causative agent of dracunculiasis (Guinea worm disease), in Chad has led to speculation that a paratenic host is involved in the life cycle, most likely an animal with an aquatic stage that would feed upon copepods and harbor the infection for subsequent transmission to a human or dog definitive host (1).
2) infected mosquitoes serve as vectors and humans are the definitive host.
The adult tapeworm releases eggs into the feces of the definitive host and these eggs may persist for long periods in the environment (Eckert et al.
However, the first intermediate host, cercaria and definitive host still unknown which need to be studied in Venezuela.
Perca fluviatilis is the definitive host for the tapeworm Proteocephalus percae.
The most commonly recognized coccidians infecting dogs are species specific for the definitive host.
1) The life cycles of avian filarioids follow the standard filarioid pattern; these invariably involve a vertebrate definitive host and an invertebrate intermediate host, the latter referred to as the vector.