Clinical Microbiology and Virology, Spirito Santo Hospital, via Fonte Romana 8, CAP 65124, Pescara (PE), Italy,
Folia Microbiol (Praha). 2013 Nov;58(6):451-3. doi: 10.1007/s12223-013-0227-9. Epub 2013 Feb 9.
Corynebacterium striatum is often dismissed as a contaminant when cultivated from blood samples; indeed, it is a skin saprophyte that may therefore be introduced into the clinical specimen accidentally. Nevertheless, the organism can be responsible for true bacteraemias, and multidrug resistance spread among nosocomial strains is of increasing concern. Specific criteria for testing have not been defined yet, but we however suggest to report clear resistances (i.e. absence of any inhibition zones with the disc test), in order to try to understand this species behaviour under antibiotic exposure. In this context, features of a blood isolate (strain DSM 45711) are here depicted.
棒状杆菌属(Corynebacterium striatum)通常在从血液样本中培养时被视为污染菌;实际上,它是一种皮肤腐生菌,可能会意外地引入临床标本中。然而,该菌可引起真正的菌血症,且医院内菌株的多药耐药性传播日益令人担忧。目前尚未确定具体的检测标准,但我们建议报告明确的耐药性(即纸片扩散法检测无任何抑菌圈),以便尝试了解该菌在抗生素暴露下的行为。在此背景下,本文介绍了一株血源分离株(DSM 45711 株)的特征。