The aim of the study was to evaluate the pathogenic potential of Bacteroides pyogenes, rarely identified in clinical laboratories anaerobic bacteria. To increase the knowledge about this poorly understood anaerobic microorganism, the study also includes cases of infections described so far in the literature. Only the use of 16S rRNA sequencing and mass spectrometry technique allowed the identification of B. pyogenes from clinical specimens. We reported 13 severe human infections caused by B. pyogenes. Bacteria were cultured from the wound after biting by animals, chronic infections within the oral cavity, from patients with histologically or radiological proven osteomyelitis, surgical site infection, and from urine sample collected after a urological procedure. Most (9/13) of the patients required hospitalization. Almost 70% of them needed urgent admission via the emergency room. Two inpatients due to a life-threatening condition were admitted to the intensive care unit. Almost 50% of isolates were resistant to penicillin. All resistant to penicillin strains were isolated from skin and mucous membrane infections.

该研究的目的是评估化脓性拟杆菌的致病潜力，在临床实验室厌氧细菌中很少发现。为了增加对这种知之甚少的厌氧微生物的了解，该研究还包括迄今为止文献中描述的感染病例。只有使用 16S rRNA 测序和质谱技术才能从临床标本中鉴定化脓性芽孢杆菌。我们报告了 13 例由化脓性芽孢杆菌引起的严重人类感染. 细菌在被动物咬伤后的伤口、口腔内的慢性感染、组织学或放射学证实的骨髓炎患者、手术部位感染以及泌尿外科手术后收集的尿液样本中培养。大多数（9/13）患者需要住院治疗。其中近 70% 的人需要通过急诊室紧急入院。两名因危及生命而住院的患者被送入重症监护室。几乎 50% 的分离株对青霉素耐药。所有对青霉素耐药的菌株均从皮肤和粘膜感染中分离出来。