Which disease is caused by papillomavirus?

• A. Impetigo
• B. Ringworm
• C. Psoriasis
• D. Warts

Answer: (D)

Papillomavirus infections cause warts, which are rough, skin-colored or gray-brown growths that result from viral-driven overgrowth of epidermal keratinocytes. The papillomaviruses are a group of non-enveloped DNA viruses that infect skin and mucous membranes, producing different types of warts such as common, plantar, flat, and genital warts. Impetigo is a bacterial infection with honey-colored crusts; ringworm is a fungal skin infection that forms ring-shaped patches; psoriasis is an autoimmune condition with scaly plaques. Warts are contagious and spread by skin-to-skin contact or shared surfaces, and they can sometimes go away on their own or be treated with appropriate dermatologic therapies.