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a subclass of sporozoa commonly parasitic in epithelial cells of the intestinal tract, but also found in the liver and other organs; it includes two genera, Eimeria and Isospora.


 [kok-sid´e-ah] (L.)
plural of coccidium.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


A subclass of important protozoa (class Sporozoea, phylum Apicomplexa) in which the mature trophozoites are small and typically intracellular; schizogony and sporogony can occur in the same host, in contrast to the gregarines (subclass Gregarinia of class Sporozoea), which have large extracellular trophozoites in various invertebrates and do not reproduce by schizogony.
Synonym(s): Coccidiasina
[Mod. L., fr. G. kokkos, berry]


Plural of coccidium.
Farlex Partner Medical Dictionary © Farlex 2012


A subclass of protozoa in which mature trophozoites are small and typically intracellular.
[Mod. L., fr. G. kokkos, berry]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Coccidias aviares de gallineros industriales de Chile.
After multiple infections, surviving chickens become resistant to the coccidia.
They also do a magnificent job of highlighting the need for standardized non-morphological characters to be used in new descriptions for coccidia, such as location and liming of sporulation, host-specificity, length of prepatent and patent periods, and resulting pathology of infection with various life stages, and include summaries of how these data have contributed to the recognition or rejection of each taxon within its representative entry.
Cats living in crowded conditions, such as shelters or group housing, may be predisposed to coccidia infection, both due to stress and the difficulty in keeping the premises free of infective oocysts.
In this case, the infestation with coccidia, common intestinal parasites in rabbits that can cause emaciation, may have contributed to the massive mycobacterial infection.
All goats were naturally infected with parasites by allowing them to graze an adjacent bahiagrass pasture infected with L-3 stage larvae of GIN and coccidia infective oocysts from 0800 to 1500 h daily and then returned to the pens where the same diets as in Experiment 1 were offered for ad libitum consumption (110% of the previous day intake).
Indeed, extensively managed pigs are reported to harbor intestinal helminthes and protozoans [7] while pigs raised in intensive operations though thought to be less prone to gastrointestinal infestation are infested as well; the large roundworm (Ascaris suum), whipworm (Trichuris suis), the nodular worms (Oesophagostomum sp), and protozoa (Coccidia) are often found in intensive pig production [8, 9].
Partoutomo, "A study on the infection rate of coccidia and distribution of coccidiosis of village chickens in South and East Kalimantan," Indonesian Journal of Animal and Veterinary Sciences, vol.
Coccidia oocysts have a remarkable ability to survive in exogenous environment making its control by common disinfectants difficult [6].