[Toxoplasma gondii infection in Amerindians of Venezuelan Amazon].

We conducted a serological survey for Toxoplasma gondii in 121 Amerindians of the Guajibo ethnic group, 4 to 45 years of age, inhabiting Amazonas State, in the Venezuelan rain forest. The overall prevalence was 88%. Pattern of prevalence and antibody titres were compatible with constant transmission. Sex differences in antibody prevalence were not detected but antibody titres were significantly higher in females. The study is consistent with the presence of risk factors, which favour a frequent exposure of these Amerindians to T. gondii since childhood.