Knowledge and acceptability of male HPV vaccination among young people and community stakeholders in northwest Tanzania: social sciences in the Add-Vacc trial

Single-dose HPV vaccination of males was generally acceptable across all study groups. Ongoing, dynamic community engagement and open dialogue about the full spectrum of HPV-related sequalae and HPV vaccination for both genders are essential to building trust and improving understanding and acceptability of HPV vaccination targeting boys and girls in this Tanzanian context.