For this purpose, toxoplasma antibodies were determined by latex agglutination test. Two kinds of human sera were examined: people in "good health" from North of Centrafrican Republic and patients from Bangui. In North, 40% of sera gave positive results and young girls from 1 to 14 years old seem to become positive earlier than young boys. At Bangui, 81% of sera from pregnant women coming from Medical Service was positive; all from 8 patients with ocular affections was positive and only 5 on 10 with adenopathy.