Yaws is a long-term (chronic) infection that mainly affects the skin, bones, and joints.
Yaws is an infection caused by the spiral-shaped bacteria, Treponema pallidum, subspecies pertenue. It is closely related to the bacteria that cause syphilis, but this disease is not sexually transmitted. Yaws mainly affects children in rural, warm, tropical areas, such as the Caribbean Islands, Latin America, West Africa, India, and Southeast Asia.
Yaws is transmitted by direct contact with the skin sores of infected people.
Hook III EW. Nonsyphilitic Treponematoses. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 341.
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