Prevention and control of sexually transmitted infections (STIs) in the era of oral pre-exposure prophylaxis (PrEP) for HIV

After years of neglect, greater global attention is being paid to the increasing incidence of sexually transmitted infections (STIs). A recently published WHO report highlights that, annually, there are an estimated 376 million new cases of four curable STIs: chlamydia, gonorrhoea, syphilis and trichomoniasis. The need for greater focus on STIs has also been highlighted in the context of expanded use of pre-exposure prophylaxis (PrEP) for HIV prevention, where high STI prevalence at baseline and incidence during PrEP use have been observed.