According to data released by the World Health Organization (WHO), there are more than one million new cases per day of curable sexually transmitted infections (STIs) among people aged 15-49 years. This amounts to more than 376 million new cases annually of four infections, chlamydia, gonorrhoea, trichomoniasis, and syphilis.
Since the last published data for 2012, there has been no substantive decline in either the rates of new, or existing, infections. According to the latest figures, approximately one in 25 people globally have at least one of these STIs, with some experiencing multiple, simultaneous infections.
These STIs have a profound impact on the health of adults and children worldwide. If untreated, they can lead to serious and chronic health effects that include neurological and cardiovascular disease, infertility, ectopic pregnancy, stillbirths, and increased risk of HIV. STI infection is also associated with significant levels of stigma and domestic violence.
Source: WHO, 6 June 2019