Lassa fever (LF) is a potentially severe viral hemorrhagic disease caused by Lassa virus and characterized by initial fever and malaise followed by gastrointestinal ...xShareShareRarediseasesSearchClinicalSignsandSymptomsClassificationsGenesDisabilityEncyclopaediaforpatientsEncyclopaediaforprofessionalsEmergencyguidelinesSources/proceduresHomepageRarediseasesSearchSearchforararedisease*(*)mandatoryfieldSearchDiseasenameORPHAcodeOMIMICD-10GenenameorsymbolOthersearchoption(s)AlphabeticallistSuggestanupdate(*)Requiredfields.Youare(*)Choose:HealthprofessionalPatient/Family/AssociationBiopharmaceuticalindustryScientistStudentOtherIfyouhaveselectedthe“Other”category,pleasespecifywhichtypeofuseryouare:*Emailaddress:*Topicofyourcomment*EpidemiologydataSummaryandrelatedtextsRelatedgenesClinicalsignsNomenclatureand/orcodingYourmessage*(3000charactersremaining)AttentionOnlycommentsseekingtoimprovethequalityandaccuracyofinformationontheOrphanetwebsiteareaccepted.Forallothercomments,pleasesendyourremarksviacontactus.OnlycommentswritteninEnglishcanbeprocessed.Orphanetdoesn'tprovidepersonalisedanswers.TogetintouchwiththeOrphanetteam,pleasecontactInformationprovidedinyourcontribution(includingyouremailaddress)willbestockedin.CSVfilesthatwillbesentasanemailtoOrphanet'steams.Theseemailsmightbeconservedintheteams'mailboxes,inourbackofficeserversbutwillnotberegisteredinourdatabases(formoreinformationseeoursectionGeneralDataProtectionRegulationanddataprivacy(GDPR)andConfidentiality).CheckthisboxifyouwishtoreceiveacopyofyourmessagePleasereproducethetextbelow:*LassafeverDiseasedefinitionLassafever(LF)isapotentiallysevereviralhemorrhagicdiseasecausedbyLassavirusandcharacterizedbyinitialfeverandmalaisefollowedbygastrointestinalsymptomsand,inseverecases,bleeding,shockandmulti-organsystemfailure.ORPHA:99824Classificationlevel:DisorderSynonym(s):LFLassahemorrhagicfeverPrevalence:<1/1000000Inheritance:-Ageofonset:AllagesICD-10:A96.2OMIM:-UMLS:C0023092MeSH:D007835GARD:-MedDRA:10023927SummaryEpid