PneumocystisPneumonia, PneumocystisPneumocystis cariniiPneumocystis InfectionsPneumocystis jiroveciiTrimethoprim-Sulfamethoxazole CombinationPentamidineAIDS-Related Opportunistic InfectionsDapsoneAtovaquoneSulfamethoxazoleOpportunistic InfectionsImmunocompromised HostDihydropteroate SynthaseBronchoalveolar Lavage FluidAnti-Infective AgentsDNA, FungalTrimethoprimAntibodies, FungalLungMethenamineNaphthoquinonesAcquired Immunodeficiency SyndromeImmunocompetenceAscomycotaAntifungal AgentsAmidinesAntigens, FungalImmunosuppressionPolymerase Chain Reactionbeta-GlucansSulfamethoxypyridazineCortisoneFolic Acid AntagonistsHIV InfectionsSulfanilamidesTrimetrexateMice, SCIDSputumFungal ProteinsBronchoalveolar LavageMolecular Sequence DataFatal OutcomeMacrophages, AlveolarLung Diseases, FungalBronchoscopyDNA, Ribosomal SpacerAerosolsTetrahydrofolate DehydrogenaseStaining and LabelingGenes, FungalTolonium ChlorideRNA, FungalBase SequenceFerretsPulmonary AlveoliDrug Resistance, FungalRats, Inbred StrainsGlucansAir MicrobiologyHIV SeropositivityDrug CombinationsMethylprednisoloneDisease Models, AnimalFungal VaccinesRNA, Ribosomal, 5.8SEvaluation Studies as TopicRNA, RibosomalAIDS-Related ComplexGallium RadioisotopesSulfadiazineRats, Sprague-DawleyRNA, Ribosomal, 18S4-Aminobenzoic AcidQuinaldinesMembrane GlycoproteinsCD4 Lymphocyte CountPrimaquinePulmonary SurfactantsPyrimethamineImmunosuppressive AgentsMagaininsEflornithineToxoplasmosis, CerebralAzure StainsMediastinal EmphysemaIncidental FindingsIndenesPulmonary Surfactant-Associated Protein AHIV SeronegativityPeptides, CyclicRetrospective StudiesCounterimmunoelectrophoresisMycologyMycobacteriaceaePulmonary Surfactant-Associated Protein DFluorescent Antibody TechniqueLymphocyte DepletionDexamethasoneCD4-Positive T-Lymphocytes