Fever of Unknown OriginFeverQ FeverYellow FeverTyphoid FeverRheumatic FeverRift Valley FeverHemorrhagic Fevers, ViralLassa FeverHemorrhagic Fever, CrimeanBoutonneuse FeverHemorrhagic Fever with Renal SyndromeDisabled PersonsAfrican Swine Fever VirusRocky Mountain Spotted FeverDepressionQuestionnairesSymptom AssessmentParatyphoid FeverClassical Swine FeverHemorrhagic Fever Virus, Crimean-CongoRisk FactorsSeverity of Illness IndexCoxiella burnetiiAfrican Swine FeverPrevalenceTreatment OutcomeProspective StudiesTime FactorsDisease OutbreaksUnited StatesCross-Sectional StudiesFollow-Up StudiesPsychiatric Status Rating ScalesHemorrhagic Fever, AmericanBehavioral SymptomsQuality of LifeSalmonella typhiRetrospective StudiesDengueIncidenceAge FactorsHemorrhagic Fever, EbolaLongitudinal StudiesCohort StudiesSevere DengueRickettsia InfectionsSex Factors