Biologicals · 1993 · 25 citations · 0 references
Veterinary MedicineInfectious Disease ControlInfectious DiseasesDisease SurveillanceEpidemiologyPublic Health SurveillanceDisease EpidemiologyGlobal EpidemiologyOutbreak ResponsePandemic ResponsePublic Health ResponseViral EpidemiologyEradicationPolio Elimination StrategyPoliovirus SurveillancePoliovirus VaccinationPoliovirus Vaccines