Vaccination of families against poliomyelitis by feeding and by contact spread of living attenuated virus including studies of virus properties after human intestinal passage.
D002690:Chlamydia Infections; D007422:Intestines; D059413:Intraabdominal Infections; D011051:Poliomyelitis / Q000276:immunology*; D014611:Vaccination
POLIOMYELITIS/immunology