[Sexually transmitted infections and travel : a public health challenge].

The WHO estimates that one million new sexually transmitted infections (STI) are acquired every day worldwide among people aged between 15-49 years old. Travel is now a well-established risk factor. In Switzerland, a substantial proportion of infections are acquired abroad. Certain populations are at an increased risk, such as men who have sex with men, travelers visiting friends or relatives, backpackers, international truck drivers, and business travelers. In this context, the primary care physician plays a central role. Pre-travel consultations should systematically incorporate STI prevention. Tailored information not only reduces the risk of acquisition, but also ensures an appropriate response in the event of exposure.