[Reactivity of toxoplasmin intradermal test in neurotic and manic-depressive patients].

Fifty patients with manic-depressive psychosis, 120 neurotics and 100 healthy individuals were studied. They underwent the toxoplasmin intradermal test. The highest percentage of reactors was found among patients with manic-depressive psychosis (66,0%). Patients with depressive neurosis accounted for the highest number among neurotics (55,6%). The intensity of reaction was higher among patients with manic-depressive psychosis. Neurotic patients were compared to schizophrenic patients from a previous study conducted by one out of the authors. It is concluded that the percentage of reactors is higher among patients with depressive mental disorders, and also that this percentage increases with mental deterioration in patients.