CefoxitinAmpicillinAmpicillin ResistanceMicrobial Sensitivity TestsAnti-Bacterial AgentsCephalosporinsSulbactamCephamycinsCephalothinbeta-LactamasesBacteroides fragilisPenicillinsCefotetanDrug Resistance, MicrobialPenicillin ResistanceCefamandoleMoxalactambeta-LactamsCefmetazoleCephalosporinasePivampicillinEnterobacteriaceaeBacteria, AnaerobicProbenecidCefotaximePenicillinaseOxacillinPenicillanic AcidBacteroidesKlebsiellaProteusLactamsDrug Resistance, BacterialChloramphenicolCefoperazonePenicillin GEnterobacterEscherichia coliImipenemClindamycinBacteroides InfectionsBacterial InfectionsCephaloridineHaemophilus influenzaeCeftizoximeSulfamethoxazoleBacteriaCarbenicillinPenicillin-Binding ProteinsTrimethoprimGentamicinsClavulanic AcidsCefazolinTicarcillinKlebsiella pneumoniaeDrug Resistance, Multiple, BacterialCefuroximebeta-Lactam ResistanceMeningitisPremedicationDisk Diffusion Antimicrobial TestsPiperacillinConjugation, GeneticR FactorsClavulanic AcidCeftriaxoneCitrobacterAmdinocillinTetracyclineBacterial ProteinsCloxacillinThienamycinsStaphylococcusMetronidazoleMuramoylpentapeptide CarboxypeptidaseCephalosporin ResistanceEnterococcus faecalisFecesCulture MediaMezlocillinDNA, BacterialCephalexinProteus mirabilisEnterococcus faeciumMethicillin ResistanceEnterobacteriaceae InfectionsAztreonamDysentery, BacillaryHexosyltransferasesAmoxicillinFusobacteriumProteus vulgarisPeptidyl TransferasesTalampicillinPlasmidsAnti-Infective AgentsGram-Positive Bacterial InfectionsSalmonellaDrug Therapy, CombinationShigella