[Contamination of milk and milk products by Yersinia enterocolitica at stages in the technological process of their production and manufacture].

Contamination of milk and its products with Yersinia enterocolitica at various stages of the production process was studied for the first time. Yersinia were detected in fresh milk (at dairy farms, in tanks at reception compartments of dairy plants) and in pasteurized milk (in tanks at the plant, in paper-bags on sale). All Yersinia strains isolated from milk are pathogenic for man and highly resistant to antibiotics.

[Late results of pregnancy and labor in myasthenia patients].

The results of a follow-up study involving 55 parous myasthenic patients and their offspring (a total of 63 births) are presented. The observation period lasted from 5 to 20 years after delivery. Of all the children born to these parents, two died immediately after birth.