In the years 1970 to 1975 90 out of 75213 women had the delivery in the infections delivery-room of the Municipal Clinics Berlin-Buch on account of suspected hepatitis infectiosa, i.e. 1,2 0/00. There was an increased prematurity in 15,6%, dysmaturity in 7,8% as well as necessity for operative delivery indicated by the child itself in 10%. That means a reduced function of placenta. In no case a specific damage to the child was to be found.