Human beings (7) âge (6) enfant (6) Children (6) Swiss (6) Children (6) Age (6) Age (6) surveillance (5) Infection (5) Hospitals (5) Hospitals (5) risque (4) infection (4) Treatment (4) Risk (4) Patients (4) Critical care medicine (4) February (4) Patients (4) Risk factors (4) puits (3) virus (3) besoin (3) mortalité (3) gestion (3) hôpital (3) maladie (3) Mortality (3) Case (3)