AmpicillinAmpicillin ResistanceSulbactamAnti-Bacterial AgentsMicrobial Sensitivity TestsPivampicillinPenicillinsPenicillin ResistanceHaemophilus influenzaeDrug Resistance, Microbialbeta-LactamasesChloramphenicolGentamicinsPenicillin GEscherichia coliPenicillinaseTrimethoprimSulfamethoxazoleR FactorsDrug Resistance, BacterialTetracyclinePenicillanic AcidCloxacillinEnterococcus faecalisCephalosporinsCephalexinbeta-LactamsEnterococcus faeciumAmoxicillinEnterobacteriaceaeDysentery, BacillaryDrug Resistance, Multiple, BacterialTalampicillinCarbenicillinProbenecidCephaloridineGram-Positive Bacterial InfectionsShigellaFecesKlebsiellaConjugation, GeneticTrimethoprim-Sulfamethoxazole CombinationNitrofurantoinDNA, BacterialHaemophilus InfectionsProteusEnterococcusShigella sonneiCephalothinPenicillin VCefamandoleSalmonellaSalmonella InfectionsCeftriaxoneStreptomycinMeningitisPenicillin-Binding ProteinsPlasmidsDrug Therapy, CombinationMeningitis, HaemophilusChloramphenicol ResistanceCefotaximeAnti-Infective AgentsCulture MediaCefuroximeBacteriaNalidixic AcidLactamsKanamycinCephalosporinaseEscherichia coli InfectionsSalmonella typhiCiprofloxacinClavulanic AcidsMeningitis, ListeriaEnterobacterVancomycinUrinary Tract InfectionsTyphoid FeverEndocarditis, BacterialAmoxicillin-Potassium Clavulanate CombinationMezlocillinDrug SynergismAmdinocillin PivoxilCefazolinBacterial InfectionsMuramoylpentapeptide CarboxypeptidaseExtrachromosomal InheritanceShigella dysenteriaebeta-Lactam ResistanceTime FactorsAmdinocillinSarcinaSulfisoxazoleAminoglycosidesElectrophoresis, Gel, Pulsed-FieldMolecular Sequence DataPeptidyl TransferasesColony Count, MicrobialErythromycin