EN
The complement fixations (CFT) and intradermal tests (IDT) were carried out in 565 children, including 280 mentally deficient, 179 deaf ones, and a control group of 106 normal subjects. The results are presented in table 1. Similar examinations were made in 104 mothers of mentally deficient. 50 mothers of the deaf and in 49 mothers of normal children. The results are presented in table 2.