[Intrauterine transmission of induced hemoblastosis in monkeys, associated with type-C oncornavirus].

The possibility of intrauterine transmission of hemoblastosis was investigated in a group of 118 M. arctoides females with induced viral hemoblastosis. In the course of observations pregnancy occurred in 9 cases. Four of seven babies, delivered at term have developed hemoblastosis. The main signs of the disease were revealed in babies from the first days of their life. Hemoblastosis was accompanied with the appearance of a specific surface antigen and the presence of the "C" type oncornavirus in blood and organs of the babies, and also in cells of one embryo. Viral hemoblastosis was successfully passaged from one of the babies to three juvenile monkeys of the same species.