Infectious mononucleosis is usually self-limited. Duration of illness varies; the acute phase lasts about 2 weeks. Generally, 20% of patients can return to school or ...MSDManualPleaseconfirmthatyouareahealthcareprofessionalYesNoLeavethisSite?Thelinkyouhaveselectedwilltakeyoutoathird-partywebsite.Wedonotcontrolorhaveresponsibilityforthecontentofanythird-partysite.ContinueCancelhoneypotlinkHOMEMEDICALTOPICSCommonHealthTopicsCardiovascularDisordersClinicalPharmacologyCriticalCareMedicineDentalDisordersDermatologicDisordersEar,Nose,andThroatDisordersEndocrineandMetabolicDisordersEyeDisordersGastrointestinalDisordersGenitourinaryDisordersGeriatricsGynecologyandObstetricsHealthandWellnessHematologyandOncologyHepaticandBiliaryDisordersImmunology;AllergicDisordersInfectiousDiseasesInjuries;PoisoningMusculoskeletalandConnectiveTissueDisordersNeurologicDisordersNutritionalDisordersPediatricsPsychiatricDisordersPulmonaryDisordersSpecialSubjectsResourcesVideosFiguresImagesQuizzesSymptomsViewAllResourcesRESOURCES3DModelsAbbreviationsLabTestsAudioCaseStudiesClinicalCalculatorsConversionTablesFiguresImagesLabValuesQuizzesSymptomsTablesVideosNEWSAmericanDiabetesAssociation,June25-29ASCOUpdatesRecommendationsforManagingHereditaryBreastCancerCDC:VaccinatedTeachers,StudentsCanSkipMasksThisFallCOVID-19CasesSurgeinLosAngelesCountyasDeltaVariantSpreadsViewAllNews>ViewAllNews>PROCEDURESViewAllProcedures>ViewAllProcedures>QUIZZES&CASESQuizzesMoreQuizzesCasesMoreCaseStudiesABOUTOverviewHistoryEditorsandtheEditorialProcessPublishingandProductionStaffEditorialBoardContributorsReviewersContentProvidersGlobalMedicalKnowledgeFAQContactUsMedicalTopics&ChaptersABCDEFGHIJKLMNOPQRSTUVWXYZProfessional/InfectiousDiseases/Herpesviruses/.../InfectiousMononucleosis/INTHISTOPICPathophysiologyTransmissionAssociateddisordersSymptomsandSignsComplicationsDiagnosisDifferentialdiagnosisLaboratorytestsPrognosisTreatmentKeyPointsOTHERTOPICSINTHISCHAPTERHerpesvirusesOverviewofHerpesvirusInfectionsChickenpoxCytome