title: [At which age does one acquire immunity against the main pathogenic agents in the first years of life? Is there an ideal age for entering into the community?].
authors.affiliation: Service de pédiatrie générale, maladies infectieuses et tropicales, urgences pédiatriques, hôpital Armand-Trousseau, Paris, France.
authors.forename: P
authors.initials: P
authors.lastname: Vigneron
authors.forename: P
authors.initials: P
authors.lastname: Bégué
mesh_terms: D000367:Age Factors; D000917:Antibody Formation; D001402:B-Lymphocytes / Q000276:immunology; D001424:Bacterial Infections / Q000276:immunology; D002656:Child Day Care Centers; D002675:Child, Preschool; D003140:Communicable Disease Control; D003141:Communicable Diseases / Q000276:immunology*; D017714:Community-Acquired Infections / Q000276:immunology*; D006801:Humans; D007111:Immunity, Cellular; D007223:Infant; D009724:Nurseries, Infant; D013601:T-Lymphocytes / Q000276:immunology; D014777:Virus Diseases / Q000276:immunology
vernacular_title: Quel est l'âge d'acquisition de l'immunité contre les principaux agents pathogènes dans les premières années de vie? Y a-t-il un âge idéal pour entrer en collectivité?