Organ TransplantationTransplantsTransplantationKidney TransplantationImmunocompromised HostLung TransplantationImmunosuppressive AgentsHeart TransplantationCytomegalovirus InfectionsLymphoproliferative DisordersGraft RejectionTransplantation ImmunologyGanciclovirLiver TransplantationZygomycosisCytomegalovirusTissue DonorsPancreas TransplantationPostoperative ComplicationsMarital TherapyImmunosuppressionTissue and Organ ProcurementOpportunistic InfectionsAntiviral AgentsTransplantation, HomologousGraft SurvivalCryptococcosisHerpesvirus 7, HumanMycophenolic AcidTacrolimusTreatment OutcomeHerpesvirus 4, HumanRetrospective StudiesAntifungal AgentsCyclosporineEpstein-Barr Virus InfectionsMycosesTime FactorsTransplantation ToleranceBrain DeathIncidenceRisk FactorsCohort StudiesSkin NeoplasmsViral LoadFacial TransplantationPolymerase Chain ReactionProspective StudiesHeart-Lung TransplantationFollow-Up StudiesWaiting ListsEyebrowsCadaverLiving DonorsDNA, ViralBone Marrow TransplantationKeratosis, ActinicCalcineurinFatal OutcomeHistocompatibility TestingAspergillosisCoccidioidomycosisHematopoietic Stem Cell TransplantationHerpesvirus 6, HumanSeromaHerpesviridae InfectionsDeathMultiple Organ FailureKidneyImmune ToleranceAcitretinSunscreening AgentsOrgan SizeViral Matrix ProteinsHLA AntigensT-LymphocytesLiver DiseasesOrgan SpecificityOrgan of CortiSirolimusSurvival RateViremiaAbdominal InjuriesRegistriesUnited StatesPennsylvaniaPrognosisImmunocompetenceMice, Inbred C57BLAntibodies, ViralGraft vs Host DiseaseTissue TransplantationAntibodies, MonoclonalImmune SystemLiverAdministration, OralCarcinoma, Squamous CellNeoplasmsSunlightMicrosporidiosis