CephalosporinsDihydropteroate SynthaseSulfanilamidesSulfamonomethoxineSulfadimethoxineSulfamethoxazolePneumocystisSulfathiazoles4-Aminobenzoic AcidPneumocystis InfectionsDapsoneAnti-Infective AgentsSulfonamidesAnti-Bacterial AgentsCephalosporin Resistancebeta-LactamasesMicrobial Sensitivity TestsCephaloridineCephalosporinasePneumocystis jiroveciiCefotaximeCephalexinPneumonia, PneumocystisTrimethoprim-Sulfamethoxazole CombinationSulfur CompoundsCefiximebeta-LactamsPenicillinsCeftriaxoneCephalothinCefmenoximebeta-Lactam ResistanceCefotiamEnterobacteriaceaeCeftazidimeCeftizoximeBacteriaDrug Resistance, FungalCephradineEnterobacterCefazolinKlebsiella pneumoniaeDrug Resistance, MicrobialDrug HypersensitivityPenicillinaseAztreonamSulfonesEnterobacteriaceae InfectionsCefoxitinGram-Negative BacteriaEscherichia coliCefamandolePenicillin ResistanceCephamycinsDrug Resistance, BacterialKlebsiellaSulfuric AcidsCefaclorCefoperazoneCarbapenemsCefmetazoleCefadroxilKlebsiella InfectionsMoxalactamAmpicillinDrug Resistance, Multiple, BacterialIsoelectric FocusingEnterobacter cloacaeCefotetanPenicillin GBacterial InfectionsCephaloglycinCefuroximeClavulanic AcidCross InfectionCefatrizineLactamsPenicillanic AcidCloxacillinGonorrheaStructure-Activity RelationshipNeisseria gonorrhoeaeImipenemCefsulodinGram-Positive BacteriaGram-Negative Bacterial InfectionsPenicillin-Binding ProteinsMutationMonobactamsEscherichia coli InfectionsDrug UtilizationChemistryChemical PhenomenaCitrobacterThienamycinsHydrolysisProteusProteus vulgarisProteus mirabilisClavulanic Acids