QuarantinePatient IsolationSevere Acute Respiratory SyndromeDisease OutbreaksCommunicable Diseases, EmergingCommunicable Disease ControlNaval MedicineDisaster PlanningMandatory ProgramsAircraftFiloviridae InfectionsTravelHistory, 19th CenturyInfluenza, HumanLegislation, HospitalTephritidaeDisease Transmission, InfectiousAnimals, LaboratoryHistory, Medieval