AIDS VaccinesClinical Trials as TopicVaccinesVaccines, InactivatedViral VaccinesVaccines, DNAVaccines, CombinedVaccines, SyntheticBacterial VaccinesVaccines, SubunitVaccines, ConjugateVaccinationMalaria VaccinesPapillomavirus VaccinesMeningococcal VaccinesClinical Trials, Phase III as TopicHepatitis B VaccinesMeasles VaccinePertussis VaccineBCG VaccineTreatment OutcomeHaemophilus VaccinesPoliovirus Vaccine, InactivatedClinical Trials, Phase II as TopicRotavirus VaccinesRabies VaccinesClinical Trials, Phase I as TopicDouble-Blind MethodCholera VaccinesTyphoid-Paratyphoid VaccinesResearch DesignAntibodies, ViralTuberculosis VaccinesSmallpox VaccineDiphtheria-Tetanus-Pertussis VaccineChickenpox VaccineControlled Clinical Trials as TopicAdjuvants, ImmunologicImmunization, SecondaryImmunization ScheduleMumps VaccineHepatitis A VaccinesMeasles-Mumps-Rubella VaccineDengue VaccinesStreptococcal VaccinesAnthrax VaccinesVaccines, VirosomeImmunizationTime FactorsRandomized Controlled Trials as TopicViral Hepatitis VaccinesYellow Fever VaccineAntibodies, BacterialPoliovirus Vaccine, OralPlacebosPlague VaccineFungal VaccinesPatient SelectionMice, Inbred BALB CInjections, IntramuscularRubella VaccineVaccines, AcellularInfluenza, HumanVaccines, Virus-Like ParticleSAIDS VaccinesSalmonella VaccinesEbola VaccinesMulticenter Studies as TopicAntibodies, NeutralizingNeoplasmsCytomegalovirus VaccinesStaphylococcal VaccinesProspective StudiesDiphtheria-Tetanus-acellular Pertussis VaccinesClinical Trials, Phase IV as TopicImmunoglobulin GUnited StatesClinical Trials Data Monitoring CommitteesFollow-Up StudiesAdministration, IntranasalImmunization ProgramsSingle-Blind MethodClinical ProtocolsAdministration, OralAntibody FormationWest Nile Virus VaccinesEscherichia coli VaccinesHemagglutination Inhibition TestsNeutralization TestsPoliovirus VaccinesDiphtheria-Tetanus VaccineShigella VaccinesPolysorbatesImmunity, HumoralHerpes Zoster VaccineGenetic VectorsAntineoplastic AgentsInjections, IntradermalAluminum HydroxideEarly Termination of Clinical Trials