[Vaccination against poliomyelitis with living avirulent viruses; preliminary report].
D002690:Chlamydia Infections; D011051:Poliomyelitis / Q000276:immunology*; D014611:Vaccination; D014780:Viruses
POLIOMYELITIS/immunology
Schutzimpfung gegen Poliomyelitis mit lebenden avirulenten Viren; Vorlauflge Mittellung.