Mitigation strategies to reduce the spread of COVID-19 have likely impacted HIV-1 epidemiology. This project seeks to estimate changes in opportunities for sexual transmission and use of HIV testing, PrEP, and treatment over the course of the first year of the pandemic for MSM in New York City and Metro Atlanta. This project then aims to use these findings to parametrize a model designed to estimate the impacts of the COVID-19 pandemic on Ending the HIV Epidemic (EHE) timelines.