Question

Which of the following organism is not the causal organism for ringworm?
A. Macrosporum
B. Epidermophyton
C. Trichophyton
D. Microsporum

Answer 1

Hint:
Ringworm, also called dermatophytosis, is a fungal infection of the skin. The lesion caused by ringworm infection resembles a worm in the shape, so it got its name. Ringworm infection can affect both animals and humans. The term “ringworm” is generally used to refer to tinea corporis or ringworm of the body.

Complete step by step answer:
Symptoms of ringworm may include a scaly ring-shaped area, generally on the trunk, buttocks, legs, and arms, and itchiness. A scaly or clear area inside the ring, possibly with a scattering of spots whose colour ranges from red on white skin to reddish, Gray, purplish, or brown on black and brown skin may appear.
Microsporum is a fungal genus that causes tinea corporis, ringworm, tinea capitis, and other fungal infections of the skin. Microsporum forms both microconidia (smaller asexual reproductive structures) on short conidiophores and macroconidia (large asexual reproductive structures).
Epidermophyton is a genus of fungus causing cutaneous or superficial mycoses, including E. floccosum, and causes tinea cruris (jock itch), tinea corporis (ringworm), tinea unguium (fungal infection of the nail bed), and tinea pedis (athlete's foot). Trichophyton is a genus of fungi, which possesses the parasitic varieties that cause tinea, including ringworm, jock itch, athlete's foot, and some infections of the beard, skin, scalp, and nails. Tuber macrosporum is a species of edible truffle in the family of Rubiaceae.

Option ‘A’ is correct

Note:
These fungi can live on the skin and other surfaces, especially damp areas. They may also live for an extended time as spores in the soil. One can contract the infection if one comes in contact with a person who has ringworm or if one shares personal items, such as towels or combs.