SkipdirectlytositecontentSkipdirectlytopageoptionsSkipdirectlytoA-ZlinkSkipdirectlytoA-ZlinkSkipdirectlytoA-ZlinkTravelers'HealthFacebookTwitterLinkedInEmailSyndicateYellowFeverWhatisyellowfever?Yellowfeverisadiseasecausedbyavirusthatisspreadthroughmosquitobites.Symptomstake3–6daystodevelopandincludefever,chills,headache,backache,andmuscleaches.About15%ofpeoplewhogetyellowfeverdevelopseriousillnessthatcanleadtobleeding,shock,organfailure,andsometimesdeath. Whoisatrisk?TravelerstocertainpartsofSouthAmericaandAfricaareatriskforyellowfever.Seetheboxbelowforspecificinformationaboutthecountrywhereyouaretraveling. YellowFeverinBrazilWhereisyellowfevervaccinerecommendedinBrazil?Vaccinerecommended        Vaccinerecommended        Vaccinerecommendedsincethe 2017 outbreak         Vaccinenotrecommended  Whatcantravelersdotopreventyellowfever?YoushouldreceiveayellowcardcalledtheInternationalCertificateofVaccinationorProphylaxis(ICVP)toprovethatyouhavehadyellowfevervaccine.Somecountriesrequirealltravelerstoshowproofofyellowfevervaccinationbeforetheycanenterthecountry.Othercountriesrequireproofofvaccinationonlyiftravelershavebeeninariskarea,soifyouarevisitingmultiplecountries,theorderoftravelmaybeimportant.Proofofvaccinationisnotvaliduntil10daysafteryougetthevaccine,soplantogetthevaccineearlyifyouneedit.Travelerscanprotectthemselvesfromyellowfeverbygettingyellowfevervaccineandpreventingmosquitobites.Getyellowfevervaccineifrecommendedorifrequired:Visitayellowfevervaccination(travel)clinicandaskforayellowfevervaccine.Youshouldreceivethisvaccineatleast10daysbeforeyourtrip.Afterreceivingthevaccine,youwillreceiveasignedandstampedInternationalCertificateofVaccinationorProphylaxis(ICVP,sometimescalledthe“yellowcard”),whichyoumustbringwithyouonyourtrip.Thevaccinelastsforlifeformostpeople,butaboosterafter10yearsisrecommendedforcertainpeople.SeeYellowFeverVaccineBoosterDosesformoreinformation.Note:CDC’srecommendationisdifferentfromthecountry’srequirement.Avaccinerecommendationisdesignedtok