FoscarnetPhosphonoacetic AcidInjectionsDNA-Directed DNA PolymeraseGanciclovirAntiviral AgentsCytomegalovirus RetinitisPolymerase Chain ReactionRNA Polymerase IIOrganophosphorus CompoundsAcyclovirCytomegalovirus InfectionsCytomegalovirusDNA-Directed RNA PolymerasesDNA Polymerase IRetinitisSkin Diseases, ViralDNA Polymerase IIMolecular Sequence DataDNA Polymerase IIIOrganophosphonatesBase SequenceStomatitis, HerpeticCytosineRNA Polymerase IRNA Polymerase IIIAIDS-Related Opportunistic InfectionsInjections, IntramuscularInjections, IntravenousDNA Polymerase betaHerpes LabialisDNA, ViralTranscription, GeneticAcquired Immunodeficiency SyndromeTemplates, GeneticRNA-Directed DNA PolymeraseAdministration, TopicalMutationInjections, IntralesionalInjections, SubcutaneousRoseolovirus InfectionsInjections, Intra-ArticularHerpes SimplexDiphosphatesOintmentsZidovudineDrug Resistance, MicrobialHerpesvirus 6, HumanDrug Resistance, Viral