paratenic host

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Related to paratenic host: reservoir host, accidental host


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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

par·a·ten·ic host

an intermediate host in which no development of the parasite occurs, although its presence may be required as an essential link in the completion of the parasite's life cycle; for example, the successive fish hosts that carry the plerocercoid of Diphyllobothrium latum, the broad fish tapeworm, to larger food fish eventually eaten by humans or other final hosts.
Synonym(s): transport host
Farlex Partner Medical Dictionary © Farlex 2012

paratenic host

An organism that plays a role in a parasite's life cycle, as by harboring its unhatched eggs, but in or on which no development of the parasite occurs.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive ?
insignis by ingestion of contaminated water or a paratenic host (frogs or fish).
Paratenic hosts include mayfly larvae and larvae of the caddis fly, Rhyacophila sp.
Previous work on Dracunculus and related spirurids indicates that paratenic hosts might be used to facilitate transmission (7,8).
Other ways in which dogs may become infected are by suckling (Coati et al., 2004) or consuming a paratenic host such as small rodent (Strube et al., 2013; Chieffi et al., 2010), chicken (Taira et al., 2011, 2012), undercooked or uncooked meat (Magnaval et al., 2001) and ingestion of late-stage larvae or immature adults in the vomitus or faeces of infected pups (Sprent, 1961).
The working hypothesis, based on biologic, environmental, and epidemiologic investigations by CDC and the Carter Center, is that human cases and dog infections are associated with the domestic and commercial fishing industry along the Chari River and involve fish or other aquatic species that serve as paratenic hosts (intermediate hosts in which no development of the parasite occurs).
medinensis larva validates the findings of these experimental infections and demonstrates that such a paratenic host is likely involved in the transmission of D.
This finding led to the hypothesis that an aquatic paratenic host (an intermediate host that serves as transport host for parasite larvae) was involved in the transmission of Dracunculus medinensis in Chad (2).
lepturus and its intermediate position in the marine food chain indicate its importance as an intermediate or paratenic host for helminth parasites.
alata infection in its paratenic host appears to be caused by mesocercarial migration.