[Fatal chickenpox infection in a newborn infant].

A fatal disseminated varicella zoster infection was diagnosed in a newborn boy. The mother had contracted chickenpox 1 day before delivery. Infants whose mothers suffer from chickenpox between 5 days before and 2 days after delivery, should receive varicella zoster immunoglobulin immediately post partum. If clinical symptoms still occur, aciclovir should be administered.