Bacteroides InfectionsBacteroidesAbortion, SepticBacteroides fragilisClindamycinAnaerobiosisBacteria, AnaerobicClostridiumCampylobacterGram-Negative BacteriaPrevotella melaninogenicaPeptococcusBacteriaVeillonellaFusobacteriumBacteria, AerobicRNA, Ribosomal, 16SPeptostreptococcusBacterial InfectionsGram-Negative Anaerobic BacteriaPhylogenyEubacteriumGram-Positive BacteriaAnti-Bacterial AgentsGram-Negative Bacterial InfectionsPyruvate SynthaseMicrobial Sensitivity TestsBacteriological TechniquesOxygenAnti-Infective AgentsCulture MediaAerobiosisMetronidazoleDNA, BacterialGram-Negative Aerobic BacteriaMolecular Sequence DataDNA, RibosomalBacteremiaSequence Analysis, DNAEnterobacteriaceaePhytochemicalsEscherichia coliBacterial Proteins