The 34th Conference on Retroviruses and Opportunistic Infections (CROI) will be held from March 21 to 24, 2027, in San Diego, California, USA.
The following dates are preliminary, and subject to change.
Date
Event
August 27, 2026
Submission Opens for General Abstracts on HIV and Hepatitis Viruses and Their Related Conditions, SARS-CoV-2, and Mpox Sciences, as well as New Investigator, International Investigator, and Community Educator Scholarship Applications
October 1, 2026
(5:00 PM Pacific Time)
Submission Deadline for General Abstracts and Scholarship Applications
November 12, 2026
Dispositions Sent by Email for General Abstracts and Scholarship Applications
December 1, 2026
Submission Opens for Late-Breaking Abstracts on HIV and Hepatitis Viruses and Their Related Conditions, SARS-CoV-2, and Mpox Sciences
Note: Scholarship applications will not be accepted during this submission cycle
December 1, 2026
General Registration Opens
December 1, 2026
Media Accreditation Opens
January 19, 2027
(5:00 PM Pacific Time)
Submission Deadline for Late-Breaking Abstracts
The submission system closes promptly at 5:00 PM Pacific Time.
No submissions will be accepted for review after that time.
January 20, 2027
Registration Fee Increases
January 28, 2027
Dispositions Sent by Email for Late-Breaking Abstracts
February 10, 2027
Deadline to Request Registration Cancellation
March 21 to 24, 2027
CROI 2027
CROI Conference attendees will get access to the Program Guide with Session Information and Presentation Titles, Abstract eBook, and Conference App one week before CROI. Attendees will also have access to the full abstract text on the day the abstract is presented.
Non-registrants will get access to the Program and Information Guide with Session and Presentation Titles one week after CROI, access to abstracts through the Abstract archive on the day after the abstract is presented, and the Abstract eBook 30 days after the close of the conference.