Bacteroides InfectionsBacteroidesBacteroides fragilisAbortion, SepticClindamycinBacteria, AnaerobicPrevotella melaninogenicaGram-Negative BacteriaAnaerobiosisFusobacteriumPeptococcusBacteriaVeillonellaBacteria, AerobicPeptostreptococcusGram-Negative Anaerobic BacteriaBacterial InfectionsEubacteriumAnti-Bacterial AgentsGram-Positive BacteriaMicrobial Sensitivity TestsGram-Negative Bacterial InfectionsPyruvate SynthaseBacteriological TechniquesClostridiumAnti-Infective AgentsMetronidazoleCulture MediaAerobiosisDNA, BacterialRNA, Ribosomal, 16SPhylogenyMolecular Sequence DataGram-Negative Aerobic BacteriaEscherichia coliCefoxitinEnterobacteriaceaeSequence Analysis, DNABacterial ProteinsBacteremiaDrug Resistance, MicrobialDNA, RibosomalAbscessPhytochemicalsSpecies Specificity