title: [Sharp improvement in vaccination coverage].
authors.forename: P
authors.initials: P
authors.lastname: Bourée
mesh_terms: D001838:Bolivia; D001938:Brazil; D002648:Child; D002662:Child Health Services; D006293:Health Promotion; D006801:Humans; D007182:Income; D008800:Mexico; D014611:Vaccination / Q000706:statistics & numerical data*