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Photo Credits: CDC, MSF
Name
Yaws
Transmission
Geography
Incubation Period
9 – 90 days (the average is 21 days)
Signs and Symptoms
There are four stages: primary, secondary, latent, and tertiary.
Primary
Secondary
Latent
Tertiary
Note: 75-80% of all cases are in children younger than 15 years
Diagnosis
Laboratory testing of blood samples is a common way to diagnose, but these tests cannot differentiate between yaws and syphilis so clinical assessment is important
Treatment
A single oral dose of the antibiotic azithromycin can cure the disease
Prognosis
Though it is treatable, yaws can persist for years as a chronic, relapsing disease just like syphilis
Prevention: What Can You Do?
Yaws In the News
Sources:
http://www.who.int/yaws/en/
http://www.who.int/mediacentre/factsheets/fs316/en/