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Why is this disease called yaws?
The term yaws is thought to be of Caribbean origin. In the language of the Carib Indian people, yaya is the word for "a sore."
Alternatively, the disease term yaws may have come from Africa where the word yaw may have meant "a berry." Because the lesions of yaws look like berries, the disease is also called frambesia (or frambesia tropica) from the French framboise, meaning "raspberry." Other older names for yaws include granuloma tropicum, polypapilloma tropicum, and thymiosis.
Medically reviewed by Robert Cox, MD; American Board of Internal Medicine with subspecialty in Infectious Disease
"Yaws, Bejel, and Pinta"