What is scabies?

Scabies is a contagious condition caused by the infestation of the skin by a mite known as Sarcoptes scabiei. This tiny parasite burrows into the upper layer of the skin, leading to intense itching and a rash. The transmission usually occurs through close physical contact with an infested person or by sharing infested clothing or bedding.

The other options do not accurately describe scabies. It is not a viral or bacterial infection, nor is it simply an allergic reaction, although some symptoms may resemble allergies due to skin irritation. Understanding scabies as a parasitic infection emphasizes the importance of proper sanitation and hygiene practices to prevent its spread.