Orsini Jose, Tam Eric, Hauser Naomi, Rajayer Salil
Department of Medicine, New York University School of Medicine, Woodhull Medical and Mental Health Center, Brooklyn, NY 11206, USA ; Division of Critical Care Medicine, Department of Medicine, New York University School of Medicine, Woodhull Medical and Mental Health Center, Brooklyn, NY 11206, USA.
Department of Medicine, New York University School of Medicine, Woodhull Medical and Mental Health Center, Brooklyn, NY 11206, USA.
Case Rep Med. 2014;2014:578127. doi: 10.1155/2014/578127. Epub 2014 Dec 28.
Comamonas spp. are uncommon isolates in microbiology laboratories and have been rarely observed as an infectious agent in clinical practice. They have widespread environmental distribution and have been isolated from water, soil, and plants as well as from some hospital devices such as intravenous catheters and water contained in humidifier reservoirs used in respiratory treatment. The genus Comamonas originally contained the following species: acidovorans, testosteroni, kerstersii, terrigena, denitrificans, and nitrativorans. It now contains 17 species, while acidovorans spp. have been reclassified as Delftia acidovorans. In spite of its uncommon human pathogenesis, there are few reports on the aggressive manner of it as an opportunistic pathogen, mostly related to testosteroni spp. We present a case of polymicrobial bacteremia involving Comamonas testosteroni. The aim of this case report is to alert clinicians to the potential diagnosis of bloodstream infections caused by uncommon pathogens.
丛毛单胞菌属在微生物实验室中是不常见的分离菌，在临床实践中很少被观察到作为感染病原体。它们在环境中广泛分布，已从水、土壤、植物以及一些医院设备（如静脉导管和用于呼吸治疗的加湿器储水器中的水）中分离出来。丛毛单胞菌属最初包含以下物种：食酸丛毛单胞菌、睾丸酮丛毛单胞菌、克氏丛毛单胞菌、土生丛毛单胞菌、反硝化丛毛单胞菌和嗜硝酸盐丛毛单胞菌。现在它包含17个物种，而食酸丛毛单胞菌已被重新分类为代尔夫特食酸菌。尽管其人类致病情况不常见，但关于其作为机会性病原体的侵袭性方式的报道很少，大多与睾丸酮丛毛单胞菌有关。我们报告一例涉及睾丸酮丛毛单胞菌的多微生物菌血症病例。本病例报告的目的是提醒临床医生注意由不常见病原体引起的血流感染的潜在诊断。
