Microsporum Fungi: Species, Infections, Diagnosis, and Prevention

Overview

Microsporum is a genus of fungi (family Arthrodermataceae) found in soil, on plants, and animals. It causes dermatophytoses (ringworm infections):

  • Tinea capitis (scalp ringworm)
  • Tinea corporis (body ringworm)
  • Tinea cruris (jock itch)

Transmission

Direct contact with infected humans/animals or contaminated objects.

Symptoms

Red, scaly, itchy patches (often round/oval with raised border); possible hair loss.

Diagnosis & Treatment

Microscopic exam of skin/hair; antifungal medication (topical or oral).

Common Species

  • M. canis: Dogs/cats; common cause of tinea capitis in children.
  • M. gypseum: Soil/plants; causes tinea corporis/cruris.
  • M. audouinii: Humans; causes tinea capitis in children.

Prevention

  • Avoid contact with infected individuals/animals.
  • Keep skin clean/dry.
  • Wear shoes in public areas.
  • Don't share combs, brushes, towels.
  • Seek prompt treatment for infections.

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