Crea un nome disinfettare posizione polio oms cemento Conformità a Grave
2022 Scientific Declaration on Polio
Nigeria on the brink of being polio free
LA OMS convoca una reunión de emergencia sobre la polio - World | ReliefWeb
Momentous milestone' as Africa eradicates wild poliovirus | UN News
PDF] Global polio eradication: progress towards containment of poliovirus type 2, worldwide 2017. | Semantic Scholar
More than 80 million doses to be administered to southern African children targeted in mass polio vaccination drives | OMS | Escritório Regional para a África
OMS confirma tercer caso de polio en Nigeria
Les pays africains s'engagent à éradiquer toutes les formes de polio (OMS) | ONU Info