Yaws is a tropical infection of the skin, bones and joints that is caused by the spirochete bacterium, Treponema pallidum pertenue. Yaws begins as a round, hard swelling on the skin. As the swelling grows, it may break open and form an ulcer. The disease is spread through skin contact. Symptoms of Yaws are:
• Appearance of a painless skin nodule (mother yaw)
• Enlargement of nodule into a wart
• Appearance of daughter yaws
• Rapid spread of warts as crab yaws to palms of hands and soles of feet
HOW IS YAWS DIAGNOSED?
Yaws is diagnosed by a general physician who would also does a routine examination and culture test via Dark field microscopy.
HOW IS YAWS TREATED?
Usually the treatment process begins with using intramuscular injection of penicillin, which helps to get rid of the infection in the earlier stages. The later stages are more difficult to treat and often the changes are irreversible.
DID YOU KNOW?
Without treatment, about 10% of affected individuals would develop disfiguring and disabling complications after five years because the disease may cause gross destruction of the skin and bones. It can also cause deformities of the legs, nose, palate, and upper jaw.There is no vaccine to prevent Yaws. The principles of prevention are based on the interruption of transmission by early diagnosis and treatment of affected individuals and their contacts.