Merck Manual

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Direct examination of M canis -infected hairs
Direct examination of  <i >M canis</i> -infected hairs
Direct examination of M canis -infected hairs

This is a low power (10x) of a direct examination containing infected hairs. Infected hairs are wide and pale. Normal hairs are thin with a regular structure and are "threadlike."

Courtesy of Dr. Karen A. Moriello.