Brucellosis is a bacterial infection that spreads from animals to people. Most commonly, people are infected by eating raw or unpasteurized ...Scheduleyourappointmentnowforsafein-personcare.Learnmore:MayoClinicfactsaboutcoronavirusdisease2019(COVID-19)Our COVID-19patient andvisitorguidelines,plustrustedhealthinformationLateston COVID-19vaccination bysite:ArizonapatientvaccinationupdatesArizona,FloridapatientvaccinationupdatesFlorida,RochesterpatientvaccinationupdatesRochesterandMayoClinicHealthSystempatientvaccinationupdatesMCHSSkiptositenavigationSkiptoContentThiscontentdoesnothaveanEnglishversion.ThiscontentdoesnothaveanArabicversion.SectionsforBrucellosisSymptoms&causesDiagnosis&treatmentPrintOverviewBrucellosisisabacterialinfectionthatspreadsfromanimalstopeople.Mostcommonly,peopleareinfectedbyeatingraworunpasteurizeddairyproducts.Sometimes,thebacteriathatcausebrucellosiscanspreadthroughtheairorthroughdirectcontactwithinfectedanimals.Signsandsymptomsofbrucellosismayincludefever,jointpainandfatigue.Theinfectioncanusuallybetreatedwithantibiotics.However,treatmenttakesseveralweekstomonths,andtheinfectioncanrecur.Brucellosisaffectshundredsofthousandsofpeopleandanimalsworldwide.Avoidingrawdairyproductsandtakingprecautionswhenworkingwithanimalsorinalaboratorycanhelppreventbrucellosis.Products&ServicesBook:MayoClinicFamilyHealthBook,5thEditionNewsletter:MayoClinicHealthLetter—DigitalEditionShowmoreproductsfromMayoClinicSymptomsSymptomsofbrucellosismayshowupanytimefromafewdaystoafewmonthsafteryou'vebeeninfected.Signsandsymptomsaresimilartothoseofthefluandinclude:FeverChillsLossofappetiteSweatsWeaknessFatigueJoint,muscleandbackpainHeadacheBrucellosissymptomsmaydisappearforweeksormonthsandthenreturn.Somepeoplehavechronicbrucellosisandexperiencesymptomsforyears,evenaftertreatment.Long-termsignsandsymptomsmayincludefatigue,recurrentfevers,arthritis,inflammationoftheheart(endocarditis)andspondylitis—aninflammatoryarthritisthataffectsthespineandnearbyjoints.WhentoseeadoctorBru