macroparasite

(redirected from Macroparasites)

mac·ro·par·a·site

(mak'rō-par'ă-sīt),
A parasite, such as a louse or an intestinal worm, that is visible to the naked eye.

macroparasite

Those parasites (e.g., helminths, arthropods) that do not multiply within their definitive host, cycling instead through transmission stages (eggs and larvae), which pass to the outside. Immune responses evoked by macroparasites are transient and depend on the parasite load; the key epidemiologic measure is the number of parasites per host.

macroparasite

Infectious disease A parasite–eg, helminths, arthropods–which does not multiply in its definitive host, cycling instead through transmission stages–eggs and larvae–which pass into the external environment; immune responses evoked by macroparasites are transient and depend on the parasite load. Cf Microparasite.
References in periodicals archive ?
Occurrence of macroparasites in four common intertidal molluscs on the south coast of Ireland.
Interactions between macroparasites and microparasites drive infection patterns in free-ranging African buffalo.
2010: Macroparasites of Pallas's squirrels, Callosciurus erythraeus, introduced into Europe.
21) The quest for disembodiment by macroparasites has been a recurring, although not universal, feature of civilizations since they began.
If we put together the patterns of disease, the networks that characterize the industrialized global agrifood system, and our observations of these macroparasites, we are presented with some startling Insights.
Therefore, due to the lack of studies on the effects of macroparasites in teleost hosts, changes in fitness have rarely been quantified, and their ecological and evolutionary meanings are unknown.
Atrazine impairs immune function in animals, increasing their susceptibility to viral disease, bacterial infection, and macroparasites, including parasites that cause limb deformities in amphibians.
In the models of microparasites and macroparasites Anderson and May (1), (2) have analyzed how the threshold phenomena for the persistence of epidemics are modified when population size is variable.