Organ TransplantationTransplantsTransplantationKidney TransplantationImmunosuppressive AgentsTissue and Organ ProcurementImmunocompromised HostGraft RejectionHeart TransplantationLung TransplantationTissue DonorsTransplantation ImmunologyCytomegalovirus InfectionsImmunosuppressionGraft SurvivalLymphoproliferative DisordersTransplantation, HomologousLiver TransplantationPostoperative ComplicationsGanciclovirOpportunistic InfectionsBrain DeathFacial TransplantationCytomegalovirusTacrolimusCyclosporineSkin NeoplasmsTransplantation TolerancePancreas TransplantationMycophenolic AcidTreatment OutcomeEyebrowsRetrospective StudiesCryptococcosisKeratosis, ActinicTime FactorsMycosesZygomycosisHeart-Lung TransplantationWaiting ListsLiving DonorsAntiviral AgentsCadaverMarital TherapyBone Marrow TransplantationAntifungal AgentsRisk FactorsSeromaMultiple Organ FailureDeathAcitretinCalcineurinSunscreening AgentsHerpesvirus 4, HumanHistocompatibility TestingFatal OutcomeOrgan SizeEpstein-Barr Virus InfectionsAspergillosisOrgan of CortiHerpesvirus 7, HumanOrgan SpecificityIncidenceHematopoietic Stem Cell TransplantationCoccidioidomycosisCohort StudiesHerpesvirus 6, HumanHerpesviridae InfectionsKidneyFollow-Up StudiesPennsylvaniaProspective StudiesImmunocompetencePolymerase Chain ReactionHLA AntigensLiver DiseasesSunlightImmune ToleranceSirolimusCarcinoma, Squamous CellMicrosporidiosisT-LymphocytesSurvival RateViral Matrix ProteinsViremiaDNA, ViralTumor Virus InfectionsViral LoadUnited StatesFetal Tissue TransplantationRegistriesMice, Inbred C57BLVomeronasal OrganPrognosisLiver FailureAntibodies, ViralTissue and Organ HarvestingImmune SystemKidney Failure, ChronicSubfornical Organ