"Kondeland. Spontan verheilte Gangosa. Dr. med. O. Fischer" ("Konde country. Spontaneously healed gangosa. Dr. O. Fischer"). Portrait of the upper body: an African man, holding a walking stick, with deformation and scar formation around the mouth, nose and eyes. Yaws is a non-venereal systemic infectious disease caused by the bacteria Treponema pertenue. The disease is endemic in certain tropical areas. Flies of the genus Hippelates transmit infections to human beings transmission between human beings through smear infection. The late tertiary stage of yaws may end with destruction of the skin and bones leading to disfiguration, also called Rhinopharyngitis mutilans or gangosa.
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