[Change in the age of poliomyelitis occurrence: value of early vaccination; problems raised].
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007231:Infant, Newborn; D008722:Methods; D011051:Poliomyelitis / Q000453:epidemiology* / Q000517:prevention & control; D013997:Time Factors; D014611:Vaccination
Evolution de l'âge de survenue de la poliomyélite: intérêt d'une vaccination précoce; problèmes soulevés.