Europe PMC (PubMed Central) · 1985 · 353 citations · 0 references
Public HealthInfectious DiseasesPreventive MedicineEpidemiologic MethodsEpidemiologyOutbreak InvestigationCoverage AssessmentImmunization CoverageImmunization PracticeVaccinationVaccine EfficacyVaccine-preventable DiseasesEpidemiological MeasurementImmunization Coverage AssessmentVaccination Coverage AssessmentVaccination Coverage MonitoringVaccination Status AscertainmentVaccine Efficacy AssessmentVaccine Efficacy EvaluationVaccine-preventable Disease Surveillance