Lung Diseases, FungalLung DiseasesPneumonia, BacterialLungMycobacterium Infections, NontuberculousPseudomonas InfectionsBronchopneumoniaNocardia InfectionsCryptococcosisPneumoniaLung Diseases, ParasiticMycobacterium InfectionsPseudomonas aeruginosaNontuberculous MycobacteriaTuberculosis, PulmonaryCystic FibrosisRespiratory Tract InfectionsCryptococcus neoformansBlastomycosisLung AbscessBronchoalveolar Lavage FluidPneumonia, ViralMycobacterium xenopiMacrophages, AlveolarBurkholderia InfectionsNocardia asteroidesActinomycetales InfectionsTularemiaMycobacterium kansasiiPneumonia, PneumococcalBronchoscopyPneumonia, StaphylococcalAnti-Bacterial AgentsKlebsiella InfectionsUvulaPneumonia, PneumocystisSputumNocardiaImmunocompromised HostDisease Models, AnimalBurkholderia cepaciaMycobacteriumBlastomycesMice, Inbred C57BLCoccidioidomycosisPneumonia, Ventilator-AssociatedFatal OutcomeVentilators, MechanicalTobramycinParacoccidioidomycosisMice, Inbred BALB CMycobacterium avium-intracellulare InfectionBronchiectasisRhodococcus equiColony Count, MicrobialRadiography, ThoracicKlebsiella pneumoniaeMyoglobinuriaFungal VaccinesFrancisellaBurkholderia cepacia complexFrancisella tularensisCytokinesMucormycosisHistoplasmosisImmunocompetenceTrichosporonStreptococcus constellatusMice, KnockoutEthambutolFocal InfectionPseudomonas VaccinesAlginatesVirulenceImmunity, InnateSpecific Pathogen-Free OrganismsAntifungal AgentsInvasive Pulmonary AspergillosisAerosolsAspergillosisNeutrophil InfiltrationEmpyemaIntubation, IntratrachealRespiration, ArtificialNeutrophilsAIDS-Related Opportunistic InfectionsAntibodies, FungalTomography, X-Ray ComputedStenotrophomonas maltophiliaAspergillus fumigatusVision DisordersGalliumBacterial InfectionsRespiratory InsufficiencyMycobacterium aviumVirulence FactorsMycobacterium tuberculosisGram-Negative Bacterial InfectionsDisease SusceptibilityRetrospective Studies