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.

de·fin·i·tive host

(dĕ-fin'i-tiv hōst)
One in which a parasite reaches the adult or sexually mature stage.
References in periodicals archive ?
The fact that general patterns of prevalence in the Pantanal did not differ between host species, and were similar for both genders in coatis and crab-eating foxes may indicate that differences in features such as body size and social behavior are relatively less important for predicting infection rates by acanthocephalans when compared to the availability and consumption rates of infected intermediate hosts by definitive hosts. Parasites loads, in turn, may shaped more by features related to host health and immune system function, which are in turn potentially affected by host age and gender.
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., 2007; Jacquin et al., 2014), but only certain behavioral changes have been shown to be linked to predation enhancement.
This case study strongly suggests logistic regression has the potential to determine parasite intermediate hosts if definitive host stomach contents can be routinely and adequately sampled and the food items identified to taxa.
The lifecycle of the trematode host is complicated, usually having two intermediate hosts; cycling first through a mollusk (almost always a snail), then through a second intermediate host (fish, another snail, etc.) and finally infecting the definitive host (a vertebrate).
* The host in which a parasite reaches sexual maturity and reproduces sexually is referred to as the definitive host. In parasites that only reproduce asexually the host in which the parasite spends the majority of its life cycle is also referred to as the definitive host.
Humans are not the definitive host for this roundworm.
(Byrd, 1935), which describe snakes as the definitive host and tadpoles and frogs as second intermediate hosts.
microti shares the same vector tick (Ixodes scapularis), reservoir rodent (the white-footed mouse), and definitive host (the white-tailed deer) as Borrelia burgdorferi, the Lyme disease spirochete, the pathogens are unrelated and treatment for the two conditions differs.
The two infections share the same vector tick (Ixodes scapularis), reservoir rodent (the white-footed mouse), and definitive host (the white-tailed deer).