• Every day, more than 1 million new cases of curable sexually transmitted infections (STIs) are detected in people aged 15-49 years, according to latest data released by the World Health Organisation (WHO). This amounts to more than 376 million new cases annually of four infections — chlamydia, gonorrhoea, trichomoniasis and syphilis.
• Published online by the bulletin of the WHO, the research shows that, among men and women aged 15-49 years, there were 127 million new cases of chlamydia in 2016; 87 million cases of gonorrhoea; 6.3 million cases of syphilis; and 156 million cases of trichomoniasis.