VaccinationMass VaccinationInfluenza VaccinesImmunization ProgramsInfluenza, HumanImmunization ScheduleSmallpox VaccineAdverse Drug Reaction Reporting SystemsSmallpoxVaccinesHepatitis B VaccinesPapillomavirus VaccinesTreatment OutcomeImmunization, SecondaryCancer VaccinesVaccines, DNAViral VaccinesMeasles VaccineAntibodies, ViralMedical ErrorsDouble-Blind MethodBCG VaccinePneumococcal VaccinesMeasles-Mumps-Rubella VaccineMeaslesBacterial VaccinesVaccines, AttenuatedVaccines, InactivatedDrug-Related Side Effects and Adverse ReactionsVaccines, SyntheticDiphtheria-Tetanus-Pertussis VaccineVaccines, SubunitChickenpox VaccineInfluenza A Virus, H1N1 SubtypeVaccines, CombinedHepatitis A VaccinesAdjuvants, ImmunologicRubella VaccineUnited StatesInjections, IntradermalTime FactorsAdministration, OralAntibodies, BacterialInjections, IntramuscularTetanusPertussis VaccineWhooping CoughDrug Administration ScheduleImmunoglobulin GDisease OutbreaksSafetyRotavirus VaccinesProduct Surveillance, PostmarketingYellow Fever VaccineHemagglutination Inhibition TestsVaccines, ConjugateMeningococcal VaccinesAntibody FormationProspective StudiesRabies VaccinesHepatitis BCost-Benefit AnalysisChickenpoxImmunizationIncidenceDrug Therapy, CombinationMice, Inbred BALB CPoliovirus Vaccine, InactivatedDiphtheria-Tetanus-acellular Pertussis VaccinesHepatitis AMumps VaccinePapillomavirus InfectionsImmunity, HerdTetanus ToxoidPandemicsPlacebosCD8-Positive T-LymphocytesRubellaIatrogenic DiseaseMumpsInjections, SubcutaneousRetrospective StudiesDiphtheriaHealth PersonnelAdministration, IntranasalImmunotherapy, ActiveInfant, NewbornYellow FeverHaemophilus VaccinesRabiesImmunity, HumoralFollow-Up StudiesPneumococcal InfectionsProtozoan VaccinesAntibodies, NeutralizingAIDS VaccinesInterferon-gammaDiphtheria ToxoidRisk FactorsImmunity, Cellular