yaws
Sign in to saveAlso known as frambesia, frambesia tropica, frambosie, polypapilloma tropicum, thymosis, bouba, Endemic treponematoses, Treponema pertenue infection
Yaws is a tropical infection of the skin, bones, and joints caused by the spirochete bacterium Treponema pallidum pertenue. The disease begins with a round, hard swelling of the skin, in diameter. The center may break open and form an ulcer. This initial skin lesion typically heals after 3–6 months. After weeks to years, joints and bones may become painful, fatigue may develop, and new skin lesions may appear. The skin of the palms of the hands and the soles of the feet may become thick and break open. The bones (especially those of the nose) may become misshapen. After 5 years or more, large
Key facts
- Medical condition.name
- Yaws
- Medical condition.image
- Yaws 01.jpg
- Medical condition.caption
- Nodules on the elbow resulting from a Treponema pallidum pertenue bacterial infection
- Medical condition.field
- Infectious disease
- Medical condition.synonyms
- Frambesia tropica, thymosis, polypapilloma tropicum, non-venereal endemic syphilis, puru (Malay),bouba (Spanish), frambösie, pian (French), frambesia (German), bakataw (Maguindanaoan)
- Medical condition.symptoms
- Hard swelling of the skin, ulcer, joint and bone pain
- Medical condition.causes
- Treponema pallidum pertenue spread by direct contact
- Medical condition.diagnosis
- Based on symptoms, blood antibody tests, polymerase chain reaction
- Medical condition.prevention
- Mass treatment
- Medical condition.medication
- Azithromycin, benzathine penicillin
- Medical condition.frequency
- 46,000–500,000
via Wikipedia infobox
Research
1,281 papers- Yaws.British medical bulletin · 2015
- Yaws.International journal of STD & AIDS · 2015
- Yaws.Lancet (London, England) · 2013
- Yaws control/eradication.International journal of dermatology · 1994
- Yaws, Haemophilus ducreyi, and Other Bacterial Causes of Cutaneous Ulcer Disease in the South Pacific Islands.Dermatologic clinics · 2021
via PubMed
Wikidata facts
- Image
- Yaws 01.jpg
Show 6 more facts
- minimal incubation period in humans
- 9
- maximal incubation period in humans
- 90
- Commons category
- Yaws
- NCI Thesaurus ID
- C41353
- exact match
- identifiers.org/doid/DOID:10371
- ICD-9-CM
- 102.7
via Wikidata · CC0
~23 min read
Article
11 sectionsContents
- Signs and symptoms
- Rhinopharyngitis mutilans
- Cause
- Diagnosis
- Treatment
- Epidemiology
- History
- Eradication
- References
- Works cited
- External links
Yaws is a tropical infection of the skin, bones, and joints caused by the spirochete bacterium Treponema pallidum pertenue. The disease begins with a round, hard swelling of the skin, in diameter. The center may break open and form an ulcer. This initial skin lesion typically heals after 3–6 months. After weeks to years, joints and bones may become painful, fatigue may develop, and new skin lesions may appear. The skin of the palms of the hands and the soles of the feet may become thick and break open. The bones (especially those of the nose) may become misshapen. After 5 years or more, large areas of skin may die, leaving scars.
Yaws is spread by direct contact with the fluid from a lesion of an infected person. The contact is usually nonsexual. The disease is most common among children, who spread it by playing together. Other related treponemal diseases are bejel (T. pallidum endemicum), pinta (T. carateum), and syphilis (T. p. pallidum). The appearance of the lesions often diagnoses yaws. Blood antibody tests may be useful, but cannot separate previous from current infections. Polymerase chain reaction is the most accurate method of diagnosis.