CefotaximeCephalosporinsCephalosporin ResistanceMicrobial Sensitivity TestsAnti-Bacterial AgentsAcremoniumbeta-LactamasesCeftriaxoneMoxalactamCeftizoximeCephalosporinaseCeftazidimeBacteriaCefmenoximeCephamycinsEnterobacteriaceaeCefoperazonePenicillinsCephalexinCephalothinbeta-LactamsDrug Resistance, MicrobialPenicillin ResistanceGram-Negative BacteriaCefuroximeBacterial InfectionsCefazolinCephaloridinePenicillin-Binding ProteinsEnterobacterGram-Positive BacteriaPenicillin AmidaseCefamandoleCefotiamCefaclorEnterobacteriaceae InfectionsCefoxitinStreptococcus pneumoniaebeta-Lactam ResistanceLactamsAztreonamMuramoylpentapeptide CarboxypeptidaseKlebsiella pneumoniaeCefiximeDrug StabilityEscherichia coliAmpicillinPeptidyl TransferasesHexosyltransferasesDrug Resistance, BacterialImipenemPenicillin GPenicillinasePiperacillinMolecular Sequence DataAnti-Infective AgentsCefonicidPenicillanic AcidKlebsiella InfectionsThienamycinsKlebsiellaPseudomonas aeruginosaFleroxacinKineticsBacterial ProteinsCephapirinCephradineStaphylococcus aureusClavulanic AcidClavulanic AcidsHydrolysisDrug Resistance, Multiple, BacterialPseudomonasCiprofloxacinAcetylesteraseAmino Acid SequenceNeisseria gonorrhoeaeMutationFluoroquinolonesMeningitisGram-Negative Bacterial InfectionsGentamicinsBacteria, AnaerobicCulture MediaAminoglycosidesDrug SynergismMeningitis, PneumococcalHalf-LifeCefmetazoleEscherichia coli InfectionsVancomycinAmikacinTobramycinAmoxicillin-Potassium Clavulanate CombinationPlasmidsPneumococcal InfectionsGonorrheaAmoxicillinChemistryStructure-Activity Relationship