[Natural antipoliomyelitis immunological status of children living in orphanages].
D006801:Humans; D007958:Leukocyte Count; D019372:Orphanages; D011051:Poliomyelitis / Q000276:immunology*
POLIOMYELITIS/immunology
La stato immunitario naturale antipoliomielitico in bambini viventi in comunità.