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What organism causes scabies?

  1. Flea

  2. Scabies mite

  3. Bed bug

  4. Lice

The correct answer is: Scabies mite

Scabies is caused by a specific organism known as the scabies mite, which is scientifically named Sarcoptes scabiei. This microscopic ectoparasite burrows into the skin, leading to intense itching and a rash as it causes an allergic reaction to its presence and waste products. The scabies mite is highly contagious, often spreading through close physical contact with an infested person. It is important to note that the other options—fleas, bed bugs, and lice—are all different types of parasites that affect humans but do not cause scabies. Fleas are often associated with pets and can transmit diseases, bed bugs feed on blood and are known for causing bites but do not burrow into the skin like the scabies mite, and lice are parasites that infest the hair and scalp. Each of these organisms has distinct characteristics and causes different issues, but the specific agent responsible for scabies is indeed the scabies mite.