| acquired toxoplasmosis | In adults, a form of toxoplasmosis that may result in fever, encephalomyelitis, chorioretinopathy, maculopapular rash, arthralgia, myalgia, myocarditis, and pneumonitis; a lymphadenopathic form seems to be more prevalent in adults, and such persons may manifest fever, lymphadenopathy, malaise, and headache, a form frequently found in patients with AIDS. (05 Mar 2000) |
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| congenital toxoplasmosis | Toxoplasmosis apparently resulting from parasites in an infected mother being transmitted in utero to the foetus, observed as three syndromes: 1) acute, most of the organs contain foci of necrosis in association with fever, jaundice, hydrocephaly, encephalomyelitis, pneumonitis, cutaneous rash, ophthalmic lesions, hepatomegaly, and splenomegaly; 2) subacute, most of the lesions are partly healed or calcified, but those in the brain and eye seem to remain active, inasmuch as chorioretinitis is observed in more than 80% of diseased infants; 3) chronic, usually not recognised during the newborn period, but chorioretinitis and cerebral lesions may be detected weeks to years later. (05 Mar 2000) |
| toxoplasmosis | <microbiology> An acute or chronic, widespread disease of animals and humans caused by the obligate intracellular protozoon Toxoplasma gondii, transmitted by oocysts containing the pathogen in the faeces of cats (the definitive host), usually by contaminated soil, direct exposure to infected faeces, tissue cysts in infected meat or tachyzoites (proliferating forms) in blood. (18 Nov 1997) |
| toxoplasmosis, animal | Acquired infection of non-human animals by organisms of the genus toxoplasma. (12 Dec 1998) |
| toxoplasmosis, cerebral | Infection caused by the protozoan toxoplasma that presents itself in a subacute fashion with headache, focal neurologic signs, seizures, or altered mental status which can progress to coma. This condition is a commonly encountered opportunistic infection in aids patients. (12 Dec 1998) |
| toxoplasmosis, congenital | Congenital infection with toxoplasma gondii characterised by lesions of the central nervous system. (12 Dec 1998) |
| toxoplasmosis, ocular | Infection caused by the protozoan parasite toxoplasma in which there is extensive connective tissue proliferation, the retina surrounding the lesions remains normal, and the ocular media remain clear. Chorioretinitis may be associated with all forms of toxoplasmosis, but is usually a late sequel of congenital toxoplasmosis. The severe ocular lesions in infants may lead to blindness. (12 Dec 1998) |