[Effect of maternal milk antibodies on the immune response of the progeny]

The influence of antibodies transmitted with milk on the progeny's immune response was studied. Mice were injected with sheep erythrocytes during the last trimester of gestation. The newborns from the immunized and nonimmunized mothers were exhanged on the first day. Hemagglutinins were shown to be transmitted with milk during the whole suckling period and decreased the plaque-forming immune response of the suckling mice.