Surveillance data from sexual health clinics indicate recent increases in sexually transmitted infections, particularly among men who have sex with men. The largest annual increase in syphilis diagnoses in a decade was reported in 2014. Less condom use may be the primary reason for these increases.
No takes yet. Share an insight, caveat, or question.
Mohammed et al. (2015) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: