Elvin Rosa is a Research Assistant for YARC and the Clinical Addiction Research and Education (CARE) Unit at Boston Medical Center. He supports the RETAIN Study, a pilot randomized controlled trial evaluating a motivational interviewing intervention to improve post discharge treatment retention among individuals with opioid use disorder (OUD) and serious injection-related infections (SIRIs). His work includes participant outreach, study visit coordination, and retention efforts through both in person and remote strategies. Outside of his research role, Elvin helps with overdose prevention workshops for youth and is working to expand these trainings across Boys and Girls Clubs throughout Massachusetts. As a former Club kid, the Boys and Girls Club is his greatest passion and source of support and he continues to give back through programming, mentorship, and community engagement. Elvin earned his BA in Biology with a minor in Public Health from Boston University in 2025 and is entering the Master of Arts in Medical Sciences (MAMS) program at BU School of Medicine starting in Fall 2025.