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abstractpubmed· Abstract 2018· item PMID:29460755
Severe Pneumonia Caused by Toxigenic Corynebacterium ulcerans Infection, Japan. Corynebacterium ulcerans infection was recently recognized as a zoonosis. We present 2 cases of severe pneumonia complicated by diffuse pseudomembrane formation on the bronchus caused by C. ulcerans-producing diphtheria toxin. Our purpose is to alert medical professionals to the virulence of Corynebacterium species other than C. diphtheriae.