[IMMUNITY TO POLIOMYELITIS 4 YEARS FOLLOWING ORAL VACCINATION].
D000293:Adolescent; D000486:Allergy and Immunology; D002648:Child; D006801:Humans; D007109:Immunity; D011051:Poliomyelitis; D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines; D013557:Switzerland; D014611:Vaccination
D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
ADOLESCENCE; CHILD; IMMUNOLOGY; POLIOMYELITIS; POLIOVIRUS VACCINE, ORAL; SWITZERLAND; VACCINATION
DIE IMMUNITAET GEGEN POLIOMYELITIS VIER JAHRE NACH ORALER IMPFUNG.