The Conference on Retroviruses and Opportunistic Infections (CROI) was established in 1993 to provide a forum for basic scientists and clinical investigators to present, discuss, and critique their investigations into the epidemiology and biology of human retroviruses and associated diseases. The synergy of basic science and clinical investigation has been a major contributor to the success of the meeting. CROI has facilitated the presentation of important discoveries in the field, thereby accelerating progress in HIV and AIDS research. The best and most consequential original research defines the science at CROI, including research in HIV, hepatitis viruses, SARS-CoV-2, mpox, and other viral infections and their related conditions.

Abstracts are evaluated by the Scientific Program Committee and additional reviewers for the relevance of their topics, the rigor of their research, and the distinct contributions they make to the broad spectrum of study that CROI strives to provide each year.

Attendance at the conference is open to researchers and clinical educators actively involved in the study and management of HIV, other retroviruses, and related medical conditions. Limited space is also available to members of the media whose work aligns with the scientific and educational aims of the conference.

For more information on the production of each conference, view this CROI Infographic (based on virtual CROI 2021).