A genus of coccidia (family Eimeriidae, class Sporozoea), with species chiefly in mammals; the ripe oocysts contain two sporocysts, each of which contains four sporozoites. This genus is now known to be closely related to Toxoplasma and Sarcocystis, with a similar sexual phase in the life cycle and a similar apical complex. [iso- + G. sporos, seed]
- I. belli a relatively rare species occurring in the small intestine of man, most common in the tropics but probably of worldwide distribution; most infections are subclinical, but sometimes they may cause mucous diarrhea.
- I. bigemina a species that occurs in the small intestine of the dog, cat, fox, mink, and possibly other carnivores; the most pathogenic coccidium in dogs and cats, causing enteritis and diarrhea; the oocysts are usually sporulated when passed in the feces, but are indistinguishable from those of Toxoplasma gondii, so considerable question remains as to the status of these parasites.
- I. canis a species of worldwide distribution that is mildly pathogenic in dogs and is not infective in cats.
- I. felis a species found in the small intestine and sometimes the cecum and colon of cats, lions, and other felids; it is only slightly, if at all, pathogenic in cats and is not infective in dogs.
- I. rivolta a species that occurs in the small intestine of dogs, cats, dingos, and probably other wild carnivores; pathogenic capabilities are similar to those of I. bigemina.
- I. suis a species that affects the small intestine of the pig, producing mild diarrhea.

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Isos·po·ra ī-'säs-pə-rə n a genus of coccidian protozoans closely related to the genus Eimeria and including the only coccidian (I. hominis) known to be parasitic in humans

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Isos·po·ra (i-sosґpə-rə) [iso- + spore] a genus of coccidian protozoa (suborder Eimeriina, order Eucoccidiida) having two sporocysts in each oocyst and four sporozoites in each sporocyst; found in birds, amphibians, and reptiles. Mammalian parasites formerly classified in this genus have been assigned to the genus Cystoisospora.

Medical dictionary. 2011.

Look at other dictionaries:

  • isospora — un género de protozoos esporulados perteneciente a la subclase Coccidia. Incluye una especie que puede provocar enfermedad al hombre: Isospora belli. Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010 …   Diccionario médico

  • Isospora — Isospora …   Wikipédia en Français

  • Isospora —   Isospora Clasificación científica Reino …   Wikipedia Español

  • Isospora — Taxobox color = khaki name = Isospora regnum = Protista unranked phylum = Alveolata phylum = Apicomplexa unranked classis = Myzozoa classis = Conoidasida subclassis = Coccidiasina ordo = Eucoccidiorida subordo = Eimeriorina familia = Eimeriidae… …   Wikipedia

  • Isospora — Isọspora   [zu griechisch sporá »Saat«, »Same«], Gattung darmbesiedelnder Sporozoen, deren Arten (besonders Isospora belli und Isospora hominis) beim Menschen Krankheiten hervorrufen können (Kokzidiosen, Isosporosen); zahlreiche Arten sind… …   Universal-Lexikon

  • Isospora — ▪ protozoan       genus of parasitic protozoans of the sporozoan subclass Coccidia. Isospora causes the disease known as coccidiosis (q.v.) in humans, dogs, and cats. The species that attack humans, I. hominis and I. belli, inhabit the digestive… …   Universalium

  • Isospora — Iso|spo|ra* die (Plur.) <zu ↑iso... u. gr. sporá »Saat, Same«> eine Gattung darmbesiedelnder ↑Sporozoen, deren Arten beim Menschen bzw. bei Tieren Krankheiten hervorrufen können (Biol., Med.) …   Das große Fremdwörterbuch

  • isospora — isos·po·ra …   English syllables

  • isospora — īˈsäspərə noun Usage: capitalized Etymology: New Latin, from is + spora : a genus of Coccidia closely related to Eimeria and including the only species (I. hominis) of coccidium known to be parasitic in man …   Useful english dictionary

  • Isospora belli — Saltar a navegación, búsqueda ? Isospora belli Clasificación científica Reino: Protista (sin clasif.) …   Wikipedia Español

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