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ID#:11005
Description:This photograph depicts the frontal view of a Petri dish within which a colony of the African form of the fungus, Trichophyton rubrum, had been cultured. Revealed is the colonial morphology, which in this case is both glabrous, i.e., flat to cottony, and raised and ruffled at its center. Its frontal coloration can range from a white to bright yellowish-beige, as it was here, and even to a red-violet coloration. From the reverse, or from the back, the colonies display a coloration that is a light yellowish to brown, or a reddish brown.
As a dermatophyte, T. rubrum is a fungus that causes common skin, hair and nail infections known as dermatophytoses. Infections caused by dermatophytes are also known by the names “tinea” and “ringworm.”, which is not caused by a worm. One example of a very common dermatophyte infection is athlete’s foot, which is also called tinea pedis. Another common dermatophytic infection affecting the groin area is jock itch, also known as tinea cruris.

Trichophyton rubrum and Trichophyton tonsurans are two common dermatophytes. These two species are easily transmitted from person to person.

High Resolution: Click here for hi-resolution image (3.83 MB)
Content Providers(s):CDC/ Dr. Libero Ajello
Creation Date:1974
Photo Credit:
Links:CDC - National Center for Zoonotic, Vector-Borne, and Enteric Diseases (ZVED); Dermatophytes (Ringworm)
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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