We describe a renal transplant patient with a primary Toxoplasma gondii infection presenting as pneumonitis, with subsequent chorioretinitis and encephalitis. The diagnostic challenges of T. gondii infection in immunocompromised patients are discussed.

Field studies were conducted on 47 swine farms in Illinois during 1992 and 1993 to identify sources and reservoirs of Toxoplasma gondii infection. Blood samples were obtained from swine and from trapped wildlife. Serum antibodies to T. gondii were determined using the modified agglutination test, incorporating mercaptoethanol. Antibodies to T. gondii (titer > or = 25) were found in 97 of 4,252 ...

Toxoplasma gondii (T. gondii) is a protozoan parasite, infecting most of the warm-blooded animals, including humans who are the intermediate host. Members of cat family Felidae are the definitive hosts. T. gondii infection is acquired by humans by accidental ingestion of oocysts in water, food or soil contaminated with cat feces, or by eating raw or undercooked meat containing cysts. Studies co...

toxoplasmosis is a common and widespread infection in humans and many other species of warm–blooded animals. toxoplasma gondii-derived heat shock protein 70 (hsp70) may play an important role in the virulence of toxoplasma gondii (t. gondii). in the present study, t. gondii hsp70 was amplified by polymerase chain reaction (pcr) from the dna of the t. gondiitachyzoite rh strain through the use o...

Human platelets, in the absence of antibody, are cytotoxic to tachyzoites of Toxoplasma gondii as determined by vital staining, transmission electron microscopy, and the failure of Toxoplasma to survive and replicate in mice after in vitro interaction of the organisms with platelets . Platelet to T. gondii ratios as low as 1 :3 were toxic to the organisms with direct cell-cell contact essential...

Background: Toxoplasma gondii is an intracellular protozoan with worldwide distribution capable of infecting all endothermic vertebrates. Latent toxoplasmosis in man and animals is considered as clinically asymptomatic. The aim of this Study is evaluation of the effects of Toxoplasma gondii on Biochemical Parameters of Reproductive Function in Male Rats. Materials and Methods: A total of 56 mal...

BACKGROUND A large number of studies have hypothesized that Toxoplasma gondii is a potentially relevant etiological factor in some cases of schizophrenia. By contrast, some studies have disproved this association. The aim of this study was to investigate whether latent toxoplasmosis has any role in schizophrenia disease. Additionally, the association between T. gondii and subtypes of schizophre...

The distribution of anti-toxoplasma antibodies among the aborigines in Malaysia and its association with other soil transmitted infections and eosinophilia were studied. A total of 415 serum samples were collected and tested by IFA test. Overall prevalence was 10.6%, lower than previously reported. The antibody titers showed a unimodal distribution peaking at 1:8 dilution. There was a higher pr...

The prevalence of Toxoplasma gondii in free-range chickens from Campos dos Goytacazes, Rio de Janeiro State, Brazil, was examined to evaluate environmental contamination by oocysts. Antibodies against T. gondii were assayed by the modified agglutination test

A longitudinal study of different parameters of the immune responses to Toxoplasma gondii was performed with sera of AIDS patients taken during and after clinically important Toxoplasma infections. Follow-up of patients lasted for 9 months on an average. The titres of the specific IgG and IgM antibodies were measured by an indirect fluorescent antibody test (IFAT), and the appearance of circula...