Fungal Disease: Ringworm

Ringworm is one of the most common skin infections encountered in a hot, humid climate such as that of West Bengal, and despite its name, it has nothing to do with any worm at all — it is a fungal infection.

Ringworm is caused by a group of fungi belonging to the genera Microsporum, Trichophyton, and Epidermophyton, collectively known as dermatophytes because they feed on keratin, the tough protein found in skin, hair, and nails. These fungi thrive in warm, moist environments, which is exactly why the infection is more common during the humid monsoon and summer months, and among people who sweat heavily or wear damp clothing for extended periods.

The infection produces dry, scaly patches on the skin that are typically ring-shaped with a slightly raised, reddish border and a somewhat clearer centre — the appearance that gives the disease its name. It commonly affects the skin of the body, the scalp, the nails, and the groin, and is usually accompanied by noticeable itching.

Ringworm spreads readily through direct contact with an infected person or animal (pet cats and dogs can also carry it), and through indirect contact with contaminated objects such as shared towels, clothing, combs, and bedding, since the fungus can survive on such surfaces for some time. …