An infectious tropical infection of the skin, bones and joints caused by the spirochete bacterium Treponema pertenue, characterized by papules and pappiloma with subsequent deformation of the skins, bone and joints; also called framboesia.
An infectious, nonvenereal tropical disease caused by Treponema pertenus. It is characterized by an initial lesion (the motheryaw), followed by further multiple lesions of the skin. It is also known as Framboesia.
A treponemal disease causing infirmity.
A tropical disease caused by the spirochaete Treponema pertenue. Symptoms include fever with raspberry-like swellings on the skin, followed in later stages by bone malformation.
Yaws is a chronic and contagious skin disease characterized by swollen, open sores; it primarily affects people living in rural, humid, and tropical climates. Yaws is characterized by three stages: primary, secondary, and tertiary.
Infection caused by the spirochete Treponema pertenue, transmitted by direct contact, chiefly among children, living in unsanitary conditions in tropical and subtropical areas. It is characterized by ulcerating sores on the body, leading to destruction of underlying tissue. Treatment is by penicillin.
A tropical infectious disease caused by the presence of the spirochete Treponema pertenue in the skin and its underlying tissues. Yaws occurs chiefly in conditions of poor hygiene. It is transmitted by direct contact with infected persons and their clothing and possibly also by flies of the genus Hippelates. The spirochetes enter through abrasions on the skin. Initial symptoms include fever, pains, and itching, followed by the appearance of small tumors, each covered by a yellow crust of dried serum, on the hands, face, legs, and feet. These tumors may deteriorate into deep ulcers. The final stage of yaws, which may appear after an interval of several years, involves destructive and deforming lesions of the skin, bones, and periosteum. Yaws, which commonly affects children, is prevalent in hot humid lowlands of equatorial Africa, tropical America, the Far East, and the West Indies. It responds well to treatment with penicillin and other antibiotics.
A non-venereal spirochaetal infection caused by Treponema pertenue; it was formerly widespread in most tropical and subtropical regions. It is directly contagious from person to person but infection is also transmitted by flies, clothing, and living in unclean huts. Clinically, the primary stage is characterized by a granulomatous lesion, or papule (framboesioma or ‘mother yaw) at the site of infection usually the lower leg or foot; this enlarges, crusts, and heals spontaneously. It appears some 2—8 weeks after infection, during which time fever, malaise, pains, and pruritus may be present. In the secondary stage, a granulomatous, papular, macular or squamous rash occurs; periostitis may also be present. The late, or tertiary stage (which appears 5—10 years later), is characterized by skin plaques, nodules, ulcers, hyperkeratosis (thickening of the skin of the hands and feet) and lesions affecting bones. Diagnosis is by demonstration of T pertenue in exudate from a suspected lesion. Treatment is with penicillin.