Yaws makes a comeback

 作者:单于叵     |      日期:2019-03-02 10:01:01
YOU’VE probably never heard of it, but yaws – a crippling disease that largely disappeared with the arrival of antibiotics – is making a comeback. Spread by casual contact, the chronic skin condition is caused by a bacterium similar to that behind syphilis. It begins as pustules and progresses to gross bone deformities. It can be cured with a long-acting penicillin shot. Between 1950 and 1970, a World Health Organization-led programme treated 50 million people in 46 countries, cutting yaws cases by 95 per cent. However, in the 1970s,