Microbiological Characteristics of Corynebacterium striatum, an Emerging Pathogen

Corynebacterium is a gram-positive bacillus that is widely distributed in the environment [1]. It consists of more than 80 species and is common in the normal f lora of human skin and mucous membranes [1]. These organisms traditionally have been considered contaminants and are ignored when they are detected in clinical specimens. However, the association of Corynebacterium species with disease is increasing, and we should consider them true pathogens when they are isolated from usually sterile specimens or invasive indwelling devices and in patients who have received long-term antimicrobial therapy. In recent years, Corynebacterium striatum has been isolated frequently from clinical specimens, and multi-drug-resistant strains are common. We need to know more precisely about the general characteristics of this organism, its clinical features, an accurate identification method, and antimicrobial resistance. We review the characteristics of C. striatum, an emerging pathogen, focusing on these points.