analyse (4) Analysis (4) Brésil (3) Children (3) Programs (3) Vaccination (3) Immunization (3) Children (3) Vaccination (3) Number (3) surveillance (2) système d'information (2) évaluation de l'impact (2) santé (2) distribution (2) Control (2) Prevention (2) Diseases (2) Cases (2) Rates (2) Vaccines (2) Population (2) Meningitis (2) Health (2) Diseases (2) Cases (2) Rates (2) Population (2) Health (2) puits (1)