CROI: 33rd

Date: 22 - February 25, 2026
Location: Denver, United States

The 33rd Conference on Retroviruses and Opportunistic Infections (CROI) is an annual scientific meeting held in Denver, Colorado, USA, at the Colorado Convention Center. Established in 1993, it provides a forum for basic scientists and clinical investigators to present, discuss, and critique research on the epidemiology and biology of human retroviruses and associated diseases, including HIV, hepatitis viruses, SARS-CoV-2, mpox, and related conditions.

The conference facilitates the exchange of ideas, accelerates progress in research, and highlights discoveries through evaluated abstracts and presentations.