Communicable DiseasesCommunicable Disease ControlDisease NotificationQuarantineCommunicable Diseases, EmergingPopulation SurveillanceDisease OutbreaksPublic HealthPublic Health AdministrationDuty to WarnDisease Transmission, InfectiousOperations ResearchInfectious Disease MedicineCommittee MembershipEpidemiologyPatient IsolationWorld Health OrganizationMediterranean RegionDeveloping CountriesCenters for Disease Control and Prevention (U.S.)World HealthInternational CooperationPublic Health PracticeHealth PrioritiesDecontaminationWalesTravelHistory, 20th CenturyInfection ControlNight CareHistory, 21st CenturyHygieneSentinel SurveillanceOrganizational PolicyNational Institute of Allergy and Infectious Diseases (U.S.)AfricaIncidenceSeasonsMeaslesEmigration and ImmigrationUnited StatesTuberculosisSingaporeInfluenza, HumanRisk FactorsEpidemiologic MethodsDiarrheaEnglandEuropeResearchHealth PolicyUnited States Food and Drug AdministrationCause of DeathPrevalenceGreat BritainHealth PersonnelEducation, Medical, ContinuingHIV InfectionsInfant, NewbornDelivery of Health CareInfectionAge DistributionQuestionnairesData CollectionUrban PopulationAnimal DiseasesRetrospective StudiesChronic DiseaseSocioeconomic FactorsBacterial InfectionsVirus DiseasesSex DistributionRegistriesInterviews as TopicCross-Sectional StudiesTime FactorsHealth Knowledge, Attitudes, PracticeVaccinesParasitic DiseasesZoonosesBioterrorismMicrobiologyTropical MedicineEpidemicsAnti-Bacterial AgentsSevere Acute Respiratory SyndromeHistory, 19th CenturyDisease VectorsSecurity MeasuresVaccinationMycosesBiosurveillanceProtozoan InfectionsPublic Health Informatics