CephalosporinsHypersensitivity, DelayedDrug HypersensitivityCephalosporin Resistancebeta-LactamasesAnti-Bacterial AgentsMicrobial Sensitivity TestsCephaloridineCephalosporinaseHypersensitivityCefotaximeCephalexinCefiximePenicillinsbeta-LactamsAlveolitis, Extrinsic AllergicCeftriaxoneCephalothinDermatitis, ContactCefmenoximeSkin Testsbeta-Lactam ResistanceCefotiamEnterobacteriaceaeDentin SensitivityCeftazidimeBacteriaCeftizoximeCephradineEnterobacterHypersensitivity, ImmediateCefazolinDrug Resistance, MicrobialKlebsiella pneumoniaePenicillinaseAztreonamEnterobacteriaceae InfectionsCefoxitinGram-Negative BacteriaCefamandoleDinitrofluorobenzenePenicillin ResistanceCephamycinsDrug Resistance, BacterialKlebsiellaCefaclorCefoperazoneCarbapenemsCefmetazoleEscherichia coliHyperalgesiaCefadroxilAmpicillinKlebsiella InfectionsMoxalactamPenicillin GBacterial InfectionsDrug Resistance, Multiple, BacterialIsoelectric FocusingEnterobacter cloacaeCefotetanPicryl ChlorideCephaloglycinCefuroximeClavulanic AcidStructure-Activity RelationshipCross InfectionCefatrizineLactamsDermatitis, Allergic ContactOxazolonePenicillanic AcidCloxacillinGonorrheaFood HypersensitivityImmunity, CellularNeisseria gonorrhoeaeImipenemDentin Desensitizing AgentsCefsulodinGram-Positive BacteriaGram-Negative Bacterial InfectionsChemistryPenicillin-Binding ProteinsChemical PhenomenaMonobactamsEscherichia coli InfectionsHaptensCell Migration InhibitionDrug UtilizationBacterial ProteinsImmunoglobulin ECitrobacterThienamycinsPain ThresholdSkinHydrolysisPlasmidsPenicillin VAnaphylaxis