Diphtheria toxin induced lesion
Corynebacterium diphtheriae produces toxins that can affect the skin by causing skin lesions, as shown here.
Source
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"A diphtheria skin lesion on the leg.
PHIL 1941 lores."
http://commons.wikimedia.org/wiki/File:A_diphtheria_skin_lesion_on_the_leg._PHIL_1941_lores.jpg
Wikimedia
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