yaws

yaws or frambesia, tropical infection of the skin caused by a spirochete ( Treponema pertenue ) closely related to that causing syphilis. Yaws, however, is not a sexually transmitted disease, i.e., it is not contracted by sexual contact; transmission is through ordinary contact with infected persons or their clothing and by insects. An ulcerating lesion ("mother yaw") appears at the site of contact. The second stage of the disease begins 6 to 12 weeks later, when similar ulcerating lesions appear all over the body. If the disease is not treated, the third stage develops several years later, nodular and ulcerating lesions affecting the soles of the feet ("crab yaws") and penetrating the bones with destructive changes. The first and second stages of yaws are easily treated with penicillin and other antibiotics. Yaws is rarely fatal; however, it can lead to chronic disfigurement and disability.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on yaws from Fact Monster:

  • airfoil - airfoil airfoil, surface designed to develop a desired force by reaction with a fluid, especially ...
  • airplane - airplane airplane, aeroplane,or aircraft,heavier-than-air vehicle, mechanically driven and fitted ...
  • yaw - yaw yaw, in aviation: see airplane; airfoil.
  • The Hoax Files: The Truth Isn't Out There - Click on the links below to read about some of the greatest hoaxes in sports, science, art, and the ...
  • eye fly - eye fly eye fly, common name for a group of small flies of the family Chloropidae. Eye flies are ...

See more Encyclopedia articles on: Pathology