The deadline for submitting general abstracts for the 2021 Conference on Retroviruses and Opportunistic Infections (CROI) will be December 1, 2020. In general, the abstract submission deadline for CROI has been in late September. Due to the impact of the COVID-19 pandemic, the deadline has been extended. CROI 2021 will be March 6-10, 2021. Visit the Important Dates page for more information.