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2005, Number 3

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Rev Mex Patol Clin Med Lab 2005; 52 (3)

Toxoplasmosis: Reemergent parasite of the new millenium

Carrada BT

Language: Spanish
References: 39
Page: 151-162
PDF size: 237.54 Kb.


ABSTRACT

Although Toxoplasma gondii infects a large proportion of the world’s animal and human populations, it is an uncommon cause of disease. Immunologically impaired individuals and congenitally infected fetus are at high risk for severe or life threatening toxoplasmosis. T. gondii is a coccidian protozoan of felids with human and warm-blooded animals as intermediate hosts. It belongs to Apococomplexa, class Sporozoa and exist in nature in three forms: the oocyst, the tissue resistant cyst and the tachyzoite. The diagnosis of T. gondii infection may be established by clinical-epidemiological study complemented by serologic tests, amplifications of specific nucleic acid sequences such as polymerase chain reaction, histologic demonstration of the parasite or by isolation of the organism. This illustrated paper presents the natural history and life cycle of T. gondii, the Epidemiology-Ecology, the clinical categories and differential diagnosis with a short review of laboratory methods, prevention and treatment.


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