Pneumonia, PneumocystisPneumocystisPneumocystis cariniiPentamidinePneumocystis InfectionsTrimethoprim-Sulfamethoxazole CombinationDapsoneAIDS-Related Opportunistic InfectionsSulfamethoxazolePneumocystis jiroveciiOpportunistic InfectionsAtovaquoneTrimethoprimPneumoniaAmidinesAcquired Immunodeficiency SyndromeAnti-Infective AgentsSulfamethoxypyridazineLungBronchoalveolar Lavage FluidNaphthoquinonesMethenaminePneumonia, BacterialImmunosuppressionImmunocompromised HostAntibodies, FungalAerosolsCortisoneDNA, FungalToxoplasmosis, CerebralAntifungal AgentsSputumAIDS-Related ComplexGallium RadioisotopesBronchoalveolar LavageHIV InfectionsPneumonia, ViralDihydropteroate SynthaseHIV SeropositivityCD4 Lymphocyte CountMice, SCIDPneumonia, PneumococcalDrug CombinationsFatal OutcomeHIV SeronegativityPolymerase Chain ReactionPulmonary AlveoliAntigens, FungalBronchoscopySarcoma, KaposiMethylprednisoloneEflornithineZidovudineCryptogenic Organizing PneumoniaDisease Models, AnimalImmunocompetenceDrug Therapy, CombinationChemopreventionRats, Inbred StrainsPulmonary SurfactantsEvaluation Studies as TopicAntibiotic ProphylaxisAdrenal Cortex HormonesTechnetium Tc 99m PentetateRetrospective StudiesAdministration, InhalationProspective StudiesHypergammaglobulinemiabeta-GlucansPneumonia, StaphylococcalLeukocyte CountDexamethasoneMolecular Sequence DataQuinaldinesLymphocyte DepletionLung DiseasesFolic Acid AntagonistsCD4-Positive T-LymphocytesRats, Sprague-DawleyTrimetrexateIncidenceLondonPneumonia, Ventilator-AssociatedFungal ProteinsHIV-1Random AllocationMacrophages, AlveolarStaining and LabelingTime FactorsPneumonia, AspirationDrug Administration ScheduleSensitivity and SpecificityMice, Inbred BALB CSurvival RateAntiretroviral Therapy, Highly ActivePyrimethamineImmunosuppressive AgentsRisk FactorsBase SequenceCommunity-Acquired Infections