Bacteroides fragilisBacteroidesBacteroides InfectionsBacteria, AnaerobicPrevotella melaninogenicaFusobacteriumClindamycinCefoxitinMicrobial Sensitivity TestsAbscessAnaerobiosisMetronidazoleDrug Resistance, MicrobialAnti-Bacterial AgentsImipenemCefotetanPrevotellaPeptostreptococcusBacteriaBacteria, AerobicAbdominal AbscessNaphthyridinesbeta-LactamasesDNA, BacterialGram-Negative Anaerobic BacteriaFecesSuppurationCephamycinsMoxalactamCephalosporinaseThienamycinsPorphyromonasFluoroquinolonesAnti-Infective AgentsConjugation, GeneticPolysaccharides, BacterialCephalosporinsBacterial InfectionsPenicillanic AcidCeftizoximeGenes, BacterialBacteroidaceaeTetracyclineClostridiumEscherichia coliLactamsBacterial ProteinsGram-Positive BacteriaCulture Mediabeta-LactamsDNA Transposable ElementsAza CompoundsCefmetazoleCedrusEnterotoxinsMolecular Sequence DataSpecies SpecificityPiperacillinMetalloendopeptidasesErythromycinSulbactamClavulanic AcidsPeptococcusFusobacterium InfectionsClavulanic AcidCefotaximeTicarcillinLincomycinColony Count, MicrobialEubacterium