Yaws ( Treponema pertenue ) - PowerPoint PPT Presentation

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devin bryner n.
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Yaws ( Treponema pertenue )

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  1. Devin Bryner Yaws (Treponema pertenue)

  2. Description/M.O. • Yaws is a bacteria. • It is transmitted through skin-to-skin contact and enters through a pre-existing cut, bite, or scratch. • It causes warty nodules to appear on the skin.

  3. Victims/Hideout • Three-quarters of the victims are under 15. It’s most common in kids 6-10 years old. • It is found in humid tropical regions. It was believed to have originated in Africa and spread to other countries through immigration and slavery.

  4. Most Common Injury • Stage 1: Appears within 90 days of getting infected, usually under a month. Painless warty nodules appear on the skin. • Stage 2: Months to years later, wide-spread lesions show up. They often ulcerate and become infected. They usually heal after six months. • Stage 3: About 10% develop to stage 3 after 5 to 10 years. Causes widespread bone, joint, and soft tissue pain. This may include the bone and cartilage of the nose.

  5. Armed and Dangerous? • I would rate Yaws 3/10 in the degree of damage caused, but it depends on the stage. • Stages 1 and 2 don’t cause much damage, although Stage 2 is very infectious. • Stage 3 causes a lot of damage, but few people developthat far.


  6. Number of Victims & Most Effective Weapons • Around 50-150 million people were affected in the 1950s, but it is unknown how many people are infected today. • It is treated by one intramuscular penicillin injection or by a course of penicillin tablets. A single oral dose of azithromycin is also as effective as the injection.