A Comparison of Mobile Social Media Promotion and Volunteer-Driven Strategies for Community Organizations Recruiting Men Who Have Sex with Men for HIV Testing in Zhejiang Province, China: Cross-Sectional Study Based on a Large-Scale Survey

Community organizations play a critical role in expanding HIV testing and identifying undiagnosed individuals infected with HIV. Compared to the volunteer-driven outreach, mobile social media promotion strategies had a higher proportion of first-time testers and a higher rate of HIV positivity. We recommend prioritizing mobile social media strategies in regions with limited LGBTQ+ organizations or HIV health services to increase HIV testing coverage and interventions among MSM.