Communicable DiseasesCommunicable Disease ControlDisease NotificationQuarantinePopulation SurveillanceCommunicable Diseases, EmergingDisease OutbreaksPublic HealthPublic Health AdministrationDuty to WarnOperations ResearchCenters for Disease Control and Prevention (U.S.)Committee MembershipMediterranean RegionWorld Health OrganizationPatient IsolationEpidemiologyDeveloping CountriesPublic Health PracticeDisease Transmission, InfectiousDecontaminationHealth PrioritiesInternational CooperationWalesWorld HealthNight CareOrganizational PolicyHygieneHistory, 21st CenturyTravelPrimary PreventionHistory, 20th CenturyIncidenceRisk FactorsInfection ControlAfricaUnited StatesSentinel SurveillanceSeasonsSingaporeEmigration and ImmigrationMeaslesEnglandHIV InfectionsHealth PolicyPrevalenceEpidemiologic MethodsUnited States Food and Drug AdministrationTuberculosisEuropeQuestionnairesGreat BritainHealth PersonnelCause of DeathEducation, Medical, ContinuingResearchDiarrheaInfluenza, HumanDelivery of Health CareAge DistributionSecondary PreventionHealth Knowledge, Attitudes, PracticeInfant, NewbornData CollectionSocioeconomic FactorsRetrospective StudiesInterviews as TopicCross-Sectional StudiesChronic DiseaseSex DistributionUrban PopulationTime FactorsRegistriesAccident PreventionHealth PromotionPreventive Health ServicesHealth EducationTreatment OutcomePreventive MedicineRisk Reduction BehaviorProgram EvaluationRandomized Controlled Trials as TopicPregnancy