Abstract：
BACKGROUND: Cetobacterium somerae rarely causes infection in humans. Most studies on C. somerae have analyzed its role in the intestinal system of freshwater fish.
METHODS: Herein, we report a case of septic shock caused by C. somerae in an elderly patient.
RESULTS: Blood culture revealed growth of a gram-negative, rod-shaped anaerobic bacterium, which was identified as C. somerae through MALDI-TOF analyses. Although C. somerae is a resident species in the gut, it can cause systemic infection, which can be fatal.
CONCLUSIONS: When C. somerae is identified, consideration should be given to the possibility of the infection originating from the intestinal tract.
METHODS: Herein, we report a case of septic shock caused by C. somerae in an elderly patient.
RESULTS: Blood culture revealed growth of a gram-negative, rod-shaped anaerobic bacterium, which was identified as C. somerae through MALDI-TOF analyses. Although C. somerae is a resident species in the gut, it can cause systemic infection, which can be fatal.
CONCLUSIONS: When C. somerae is identified, consideration should be given to the possibility of the infection originating from the intestinal tract.
摘要：
背景：在人类中很少引起感染。大多数关于C.somerae的研究都分析了其在淡水鱼肠道系统中的作用。
方法：这里，我们报告了一例老年患者由C.somerae引起的感染性休克。
结果：血培养显示革兰氏阴性，杆状厌氧细菌，通过MALDI-TOF分析鉴定为C.somerae。尽管C.somerae是肠道中的常驻物种，会引起全身感染,这可能是致命的。
结论：当确定了C.somerae时，应考虑感染源自肠道的可能性。
方法：这里，我们报告了一例老年患者由C.somerae引起的感染性休克。
结果：血培养显示革兰氏阴性，杆状厌氧细菌，通过MALDI-TOF分析鉴定为C.somerae。尽管C.somerae是肠道中的常驻物种，会引起全身感染,这可能是致命的。
结论：当确定了C.somerae时，应考虑感染源自肠道的可能性。
