What causes scabies?

Scabies is caused by a parasitic infestation specifically by the Sarcoptes scabiei mite. This tiny mite burrows into the skin, leading to intense itchiness and a rash. It is important to understand that scabies is highly contagious and is typically transmitted through prolonged skin-to-skin contact with an infested person. The life cycle of the mite involves laying eggs in the skin, which further contributes to the itchy symptoms and the proliferation of the infestation.

The other answer choices refer to different types of pathogens. Bacteria are single-celled organisms that can cause various infections but are not responsible for scabies. Viruses are even smaller pathogens that cause diseases like the flu or cold but do not relate to scabies. Fungi can lead to infections such as athlete’s foot or ringworm, but again, they are not the cause of scabies. Understanding scabies as a parasitic condition helps in recognizing its transmission and treatment options.