PubMed · 1977 · 26 citations · 0 references
Veterinary MedicineInfectious Disease ControlInfectious DiseasesImmunizationInfectious Disease EpidemiologyVaccinologyDisease SpreadImmunization PolicyImmunization PracticeInfectious Disease PreventionInfectious Disease Risk FactorsVaccinationChildhood Infection PreventionInfection Risk FactorsOverall Vaccine Effectiveness