Toxoplasma gondii

(redirected from Toxoplasm gondii)

Tox·o·plas·ma gon·di·i

(tok'sō-plaz'mă gon'dē-ī),
An abundant, widespread sporozoan species (family Toxoplasmatidae) that is an intracellular, non-host-specific parasite in a great variety of vertebrates. It develops its sexual cycle, leading to oocyst production, exclusively in cats and other felids; proliferative stages (tachyzoites) and tissue cysts (containing bradyzoites) develop in a wide variety of animal species that acquire the infection from ingestion of oocysts, tissue cysts from infected meat, organ transplantation or by transplacental migration, leading to infection in utero.
[G. toxon, bow or arc, + plasma, anything formed]

Toxoplasma gondii

A species of obligate intracellular coccidian protozoans which has its sexual cycle in the GI tract of its definitive host, Felis catus. Infection—formally, toxoplasmosis—results from ingestion of oocytes shed in cat faeces or, very rarely, ingestion of meat contaminated by pseudocysts.

Toxoplasma gondii

Parasitology A species of obligate intracellular coccidian protozoans that has its sexual cycle in the GI tract of its definitive host, Felis catus; infection–toxoplasmosis–is usually the result of ingestion of oocytes shed in cat feces or, very rarely, due to ingestion of meat contaminated by pseudocysts. See Toxoplasmosis.

Tox·o·plas·ma gon·di·i

(tok'sō-plaz'mă gon'dē-ī)
An abundant, widespread sporozoan species that is an intracellular, non-host-specific parasite in a great variety of vertebrates. It develops its sexual cycle, leading to oocyst production, exclusively in cats and other felids; proliferative stages (tachyzoites) and tissue cysts (containing bradyzoites) develop in a wide variety of animal species.
[G. toxon, bow or arc, + plasma, anything formed]

Tox·o·plas·ma gon·di·i

(toksō-plazmă gondē-ī)
Abundant, widespread sporozoan species that may cause in utero infection.
[G. toxon, bow or arc, + plasma, anything formed]

Toxoplasma

a genus of apicomplexan parasites in the family Sarcocystidae.

Toxoplasma gondii
a coccidian parasite of the intestine of all felids, including especially the domestic cat, jaguarundi, ocelot, mountain lion, leopard cat, and bobcat, which are definitive hosts. Most vertebrates, including humans and birds, can be infected with the intermediate stages and experience one or other forms of the disease toxoplasmosis. Oocysts are the infective stage of importance in farm animals, and the only environmental infective stage for herbivores. Oocysts excreted in the feces of cats can survive in soil for many months and are ingested by the intermediate (livestock) host, and the parasite invades tissues to produce tissue cysts. The invasion can include the fetus. Tissue cysts in the intermediate host cause damage to the nervous system, myocardium, lung tissue, and placenta. Bradyzoites in animal tissues are a source for toxoplasmosis in humans and pigs.
Toxoplasma hammondi
see hammondiahammondi.