Trimethoprim-Sulfamethoxazole CombinationSulfamethoxazoleTrimethoprimTrimethoprim ResistanceAnti-Bacterial AgentsMicrobial Sensitivity TestsDapsoneAnti-Infective AgentsAnti-Infective Agents, UrinaryFolic Acid AntagonistsSulfadiazineSulfisoxazolePneumonia, PneumocystisDrug Resistance, BacterialIntegronsUrinary Tract InfectionsTetrahydrofolate DehydrogenaseDrug Resistance, Multiple, BacterialDrug Resistance, MicrobialDrug CombinationsDrug HypersensitivityPneumocystis jiroveciiPentamidineEscherichia coliTropherymaEnterobacteriaceaeStenotrophomonas maltophiliaR Factors4-Aminobenzoic AcidEscherichia coli InfectionsShigella sonneiDrug Synergism