Bacteroides fragilisBacteroidesBacteroides InfectionsBacteria, AnaerobicPrevotella melaninogenicaFusobacteriumClindamycinCefoxitinMicrobial Sensitivity TestsAbscessAnaerobiosisMetronidazoleDrug Resistance, MicrobialAnti-Bacterial AgentsImipenemCefotetanPrevotellaPeptostreptococcusBacteriaBacteria, AerobicAbdominal AbscessNaphthyridinesbeta-LactamasesDNA, BacterialGram-Negative Anaerobic BacteriaFecesSuppurationCephamycinsMoxalactamCephalosporinaseThienamycinsPorphyromonasFluoroquinolonesConjugation, GeneticAnti-Infective AgentsPolysaccharides, BacterialCephalosporinsPenicillanic AcidBacterial InfectionsCeftizoximeBacteroidaceaeGenes, BacterialTetracyclineClostridiumLactamsEscherichia coliBacterial ProteinsGram-Positive Bacteriabeta-LactamsCulture MediaDNA Transposable ElementsAza CompoundsCefmetazoleCedrusEnterotoxinsMetalloendopeptidasesPiperacillinSpecies SpecificityErythromycinMolecular Sequence DataSulbactamClavulanic AcidsPeptococcusFusobacterium InfectionsClavulanic AcidCefotaximeTicarcillinLincomycinColony Count, Microbial