Digital Interventions Increase STI and HIV Testing Uptake

A 2026 overview synthesizes 23 systematic reviews (514 primary studies, 129,481 participants) with searches through November 12, 2025, evaluating digital behavior change interventions for STI/HIV prevention. The review finds SMS, app, and web interventions consistently increase STI/HIV testing and sexual-health engagement, while evidence for condom use and biological outcomes is mixed; only four reviews explicitly mapped behavior-change techniques. Results inform design of theory-driven, culturally tailored digital prevention programs.