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Ringworm, known more correctly as dermatophytosis, is a skin infection caused by any of forty or so different types of microbial fungus. It causes inflammation and itchiness, making the skin scaly and forming a circular rash, and sometimes causing hair loss and blistering. Typical infection is by Trichophyton, Microsporum, renova prevacid and Epidermophyton species and is associated with skin contact with other people. Excessive sweating, obesity, and poor immune function are important risk factors.

Dermatophytosis is usually diagnosed based on symptoms and the appearance of the ring rash followed by biopsy of a scraping of skin cells from the infected area. However, it can manifest itself in different ways and so a definitive and perhaps even automated approach would be a boon for medical professionals particularly in areas where the infection is common. Treatment commonly requires the use of oral antifungal drugs, such as terbinafine, fluconazole, or itraconazole. It can also be treated with a “dip therapy” approach.

Now, writing in the International Journal of Computational Vision and Robotics, a team from India has turned to a computer vision diagnostic for dermatophytosis. The team “trains” an algorithm in the computer software Matlab to recognize the characteristics of known photographs taken of an area of a patient’s skin suffering dermatophytosis. The software can then recognize the presence of the infection in images from as yet undiagnosed cases with up to 87 percent accuracy, the team says.

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