santé (4) Brésil (4) Health (4) Health (4) risque (3) Case (3) Risk (3) Patients (3) Grammar, Comparative and general--Case (3) Diseases (3) Case (3) Patients (3) maladie (3) virus (2) surveillance (2) ménage (2) épidémiologie (2) enzyme (2) âge (2) taux (2) Epidemiology (2) Diagnosis (2) Care (2) Diseases (2) Methods (2) Cases (2) Symptoms (2) Population (2) Medical care (2) Males (2)