AmpicillinHydrolysisAmpicillin ResistanceSulbactamAnti-Bacterial AgentsMicrobial Sensitivity TestsPivampicillinPenicillinsPenicillin ResistanceEscherichia colibeta-LactamasesHaemophilus influenzaeKineticsDrug Resistance, MicrobialChloramphenicolPenicillin GPenicillinaseGentamicinsAdenosine TriphosphateTrimethoprimSulfamethoxazoleR FactorsDrug Resistance, BacterialPenicillanic AcidCephalosporinsTetracyclineCloxacillinEnterococcus faecalisbeta-LactamsCephalexinEnterobacteriaceaeEnterococcus faeciumSubstrate SpecificityDysentery, BacillaryAmoxicillinCarbenicillinCephaloridineDrug Resistance, Multiple, BacterialTalampicillinProbenecidKlebsiellaGram-Positive Bacterial InfectionsShigellaHydrogen-Ion ConcentrationFecesAdenosine TriphosphatasesMolecular Sequence DataDNA, BacterialConjugation, GeneticProteusPenicillin VPhosphatidylinositolsTrimethoprim-Sulfamethoxazole CombinationNitrofurantoinHaemophilus InfectionsEnterococcusCephalothinGuanosine TriphosphateCefamandoleSalmonellaShigella sonneiBacterial ProteinsPlasmidsSalmonella InfectionsCephalosporinaseBacteriaPenicillin-Binding ProteinsCeftriaxoneCatalysisStreptomycinCefotaximeCulture MediaEnterobacterLactamsAmino Acid SequenceMeningitisMeningitis, HaemophilusBinding SitesClavulanic AcidsChloramphenicol ResistanceDrug Therapy, CombinationKanamycinNalidixic AcidCefuroximeEscherichia coli InfectionsChromatography, High Pressure LiquidMeningitis, ListeriaAnti-Infective AgentsSalmonella typhiEstersCiprofloxacinVancomycinUrinary Tract InfectionsTyphoid FeverAmidohydrolasesAmoxicillin-Potassium Clavulanate CombinationAdenosine DiphosphateDrug SynergismMezlocillinMuramoylpentapeptide Carboxypeptidase