Toxoplasma

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Toxoplasma

 [tok″so-plaz´mah]
a genus of sporozoans that are parasites of humans, other mammals, and some birds; it includes one species, T. gon´dii, that can be transmitted from an infected mother to an infant in utero or at birth. See also toxoplasmosis.

Toxoplasma

/Toxo·plas·ma/ (tok″so-plaz´mah) a genus of sporozoa that are intracellular parasites of many organs and tissues of birds and mammals, including humans. T. gon´dii is the etiologic agent of toxoplasmosis.

toxoplasma

(tŏk′sə-plăz′mə)
n.
Any of various parasitic protozoans of the genus Toxoplasma, including some that cause disease in birds and mammals.

Toxoplasma

[tok′sōplaz′mə]
Etymology: Gk, toxikon + plasma, something formed
a genus of protozoa with only one known species, T. gondii, an intracellular parasite of cats and other hosts that causes toxoplasmosis in humans.

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.
References in periodicals archive ?
Main causes of sero-conversion of toxoplasma antibodies are mostly due to parasite challenges against a host immune system such as antigenic coat changing.
From the results, it can be concluded that the prevalence of toxoplasma antibodies among young age women in Kirkuk province is high especially in urban areas, in non-pregnant women, and during autumn.
Effect of Melatonin and Zinc on the Immune Response in Experimental Toxoplasma Retin-ochoroiditis.
Table 1--Incidence rate of toxoplasma antibodies among patients attending antenatal clinics in 2009 No.
Comparison of PCR detection methods for B1, P30, and 18S rDNA genes of Toxoplasma gondii in aqueous humor.
Comparison between two Real-time PCR assays and a nested-PCR for the detection of Toxoplasma gondii.
PCR detection of Toxoplasma gondii DNA in CSF for the differential diagnosis of AIDS-related focal brain lesions.
Rapid and sensitive diagnosis of Toxoplasma gondii infections by PCR.
Comparison of two widely used PCR primer systems for detection of Toxoplasma in amniotic fluid, blood and tissues.