Bacteroides fragilisBacteroidesBacteroides InfectionsBacteria, AnaerobicPrevotella melaninogenicaFusobacteriumClindamycinCefoxitinMicrobial Sensitivity TestsAbscessAnaerobiosisMetronidazoleDrug Resistance, MicrobialFather-Child RelationsProteinsCefotetanPrevotellaPeptostreptococcusBacteriaBacteria, AerobicAbdominal AbscessNaphthyridinesbeta-LactamasesGram-Negative Anaerobic BacteriaFecesSuppurationCephamycinsMoxalactamCephalosporinaseThienamycinsPorphyromonasFluoroquinolonesConjugation, GeneticAnti-Infective AgentsPolysaccharides, BacterialCephalosporinsPenicillanic AcidBacterial InfectionsCeftizoximeBacteroidaceaeGenes, BacterialTetracyclineClostridiumLactamsEscherichia coliBacterial ProteinsGram-Positive Bacteriabeta-LactamsCulture MediaDNA Transposable ElementsCefmetazoleCedrusEnterotoxinsMetalloendopeptidasesPiperacillinSpecies SpecificityErythromycinMolecular Sequence DataSulbactamClavulanic AcidsPeptococcusFusobacterium InfectionsClavulanic AcidCefotaximeTicarcillinLincomycinColony Count, Microbial