Found in the poorer tropical and subtropical areas of the world, it is spread principally through bad conditions and poor hygiene. It is almost always acquired in childhood and mainly affects the skin and bones.
Symptoms and treatment -
Bacteria enters the body through skin abrasions. It is marked by a raspberry like, itchy growth, which appears at the site of the infection, and sometimes follows fever and pains. The lesion is highly infectious and can be spread around the body through scratching, causing growths elsewhere.
If left untreated, the growths heal slowly in around 6 months, but recurrence is likely. In some untreated cases, the growths may lead to widespread tissue loss and result in major destruction of the skin, bones, legs, nose and upper jaw.
A singular, large dose of penicillin can be used to treat the Yaws infection, through injection into the muscle.