Poster Abstract Sessions comprise the majority of scientific information presented at CROI. Presenters of poster abstracts will be assigned to stand at their respective boards, organized by topic, on 1 of the 3 conference days. All posters will be available for viewing throughout the conference in the poster hall and in an electronic format in the conference mobile app (access is restricted to registered CROI attendees only).  

Poster Presenter Responsibilities and Opportunities at CROI

ePoster Upload

Poster presenters are required to upload an ePoster (PDF file) version of their poster that will be available to attendees through the CROI Mobile App. The ePoster submission is now live, presenting authors will receive an email with their login credentials on February 22, 2024 with the subject “CROI 2024 ePoster is Open.”

ePoster Upload Instructions (Required) Deadline: February 29, 2024, at 8:00 AM PT.
  • To upload your ePoster for the conference, log into your Speaker Portal using the login credentials provided in the email. The link to the speaker portal can be found here: CROI 2024 ePoster Upload Speaker Portal
  • Select your poster presentation from the “My Sessions” section. This session will be designated by your poster number and title.
  • Click on the “Documents” tab under the session information.
  • Select “Upload Document.” All uploads for ePosters must be in PDF format.
    • Poster files can be replaced with a newer version until February 29, 2024, at 8:00 AM PT.

Poster Presenter Responsibilities and Opportunities at CROI

Poster presenting authors illustrate their study findings by displaying graphs, figures, diagrams, and text that describe their main background, methods, findings, results, and conclusions on posters presented during assigned sessions at CROI. 

CROI Poster Format

Posters should be designed to attract interested attendees by quickly focusing them on the study’s main findings. 

Poster presenters are strongly encouraged to use the CROI poster template, which can be accessed in a PowerPoint template here: CROI Poster Template (Download). This poster format draws attendees to a poster and allows them to easily identify the main findings, according to our attendee feedback. The notes contain poster guidelines that include formatting notes (eg, font size, use of color, poster print size) and poster content requirements (eg, the addition of the assigned poster number and the policy against the use of QR codes). 

Feedback has shown that the preferred CROI Poster Format (above) is a more effective way to communicate key findings as well as supporting data. Download the Poster Template.

Poster Walks

The CROI Program Committee will host Poster Walks to discuss key science presented in poster sessions. Program committee members lead a small group of new investigators through these “poster walk-throughs” daily during the poster sessions. The committee members curate a list of poster presentations, hold a brief introductory discussion with the group, then lead them to visit each of the curated posters and encourage discussion with poster presenters. Following a short debrief, new investigators are encouraged to visit other poster presentations independently. 

Electronic Poster Theaters

The CROI Program Committee will introduce key science presented in poster sessions each day. Presentations will take place in 1 of 3 theaters designated for Basic Science, Clinical, and Epidemiology/Public Health. After these presentations, attendees will be better prepared to engage with the poster presenters during their designated poster session. 

Poster Sessions and Displaying Your Poster at CROI
  • Posters should be on display for the entire conference and not removed before the end of the poster session on the last day of CROI
  • Posters are assigned to a session with other poster presentations that share a similar theme and assigned to a day for presentation
  • Poster presenters should stand by their poster for the full duration of their assigned session to discuss it and respond to questions from attendees

Poster presenters should make their travel plans for CROI keeping their session assignment in mind, as we cannot reassign posters to a different session. If exigent circumstances preclude the presenting author from attending the session, a replacement must be found to present the poster. As submitters agreed to in the submission process, all poster presenters must present their work at CROI. Any work that is accepted at CROI must be presented by the presenting author, or notification of replacement must be sent to, prior to CROI. The inability of an author to present may impact all authors’ ability to present at CROI in the future.

Poster Contents

Poster Title: The poster title should be the same as the title submitted with the abstract and appear in boldface at the top in standard American Medical Association (AMA) title case. Nouns, pronouns, verbs, and other important words begin with uppercase letters; coordinating conjunctions, articles, and prepositions of 3 letters or fewer should all be in lowercase unless they are the first or last words in a title or subtitle. 

Assigned Poster Number: The assigned poster number should be displayed in the upper right corner (“0000” in the CROI Poster Format template). This is not the abstract submission number assigned during the submission of the abstract, but a number that denotes the position of the poster in the poster hall and in the conference program. This number is sent to the presenting author after late-breaking abstracts have been accepted. 

QR Codes and Links to External Materials Are Not Allowed: QR codes, bar codes, or other links to external resources are not permitted on posters displayed at CROI or on electronic versions of the posters to be uploaded to the CROI website. 

Corporate Logos and Trade Names: The use of commercial logos and trade names should not be used on posters, opening slides, title slides, or presentation slides. 

Displaying Posters at CROI

The suggested size for posters is either 54 inches (width) x 36 inches (height) or 60 inches x 40 inches (137.2 cm x 91.4 cm or 152.4 cm x 101.6 cm) based on the CROI Poster Template. The minimum size for a poster is 36 inches (width) x 24 inches (height) so attendees can see the poster at least 10 feet away. The size of the board for displaying the poster is 96 inches (width) x 48 inches (height), and the maximum size of a poster is 93 inches (width) x 45 inches (height).  

The face of the poster board is covered with Velcro-receptive fabric. Pushpins will be provided to hang posters. Posters can be set up on Sunday, March 3, between 12:00 PM and 6:00 PM local time, and on Monday, March 4, between 7:30 AM and 12:00 PM local time. 


Poster Printing

Presenting authors should print their physical poster based on the requirements listed in the sections above. CROI does not print posters on behalf of presenters. There are four FedEx Print Shops located around the Colorado Convention Center:

FedEx Office Print & Ship Center: Open Weekends (0.6 miles; 10-minute walk)

1437 15th Street, Denver, CO 80202

+1 (303) 623-3500

Grand Hyatt Denver: Closed on Sundays (0.4 miles; 10-minute walk)

555 17th Street, Suite 190, Denver, CO 80202

+1 (303) 298-8610

FedEx Office: Closed on Sundays (0.7 miles; 15-minute walk)

225 E 17th Avenue, Denver, CO 80203

+1 (303) 830-1981

Hyatt Regency Denver: Closed on weekends (0.2 miles: 5-minute walk)

650 15th Street, Denver CO 80202

+1 (303) 534-2198

Guidelines for Presentation

Trade Names

Trade names for drugs should not be used in presentations. Refer to drugs and products by their nonproprietary names. 

Acknowledgments of Support and Contributors

Acknowledgments of support may be included in the poster presentation of the abstract at CROI.  

Sex Stratification and Other Demographic Variables

Presentations from randomized trials and cohorts should follow the ICMJE guidelines, including reporting of study designs (eg, prospective, observational, randomized, double-blind, STROBE, CONSORT, or others), statistical methods, and outcomes by demographic variables. For human clinical or epidemiologic studies, the presentation should provide sex-stratified results or identify who was included if it includes only a single population. Presentations of preclinical data including the use of cell lines and animal studies should include the sex of the animals or the sex of the source of the cell lines. If data are not available on sex (as assigned at birth) or gender (where gender is relevant to the study results), this should be identified as a limitation in the study. 

See: ICMJE Preparing for Submission 

Use of People-First Language and Appropriate Terminology 

See: Appropriate Terminology

Presentations Describing New Compounds 

Please be sure to include information sufficient to allow for meaningful review of compound data; this can include isolation, activity, chemical structure, mechanism of action, toxic effects, and pharmacologic data. The chemical or molecular structure must be shown in the presentation (it need not be part of the abstract or be published in the Abstract eBook). 

Publication or Presentation Prior to CROI

If study data are accepted for publication or presentation after the abstract submission to CROI, and that publication or presentation is expected to take place before CROI, the presenting author must contact CROI at to provide details as soon as the presentation is accepted for review, presentation, or publication in another venue or outlet. Please be aware that although publication in these circumstances will not necessarily prevent presentation of the research at CROI, our strong preference is that any additional publication or presentation happen either simultaneous to or following presentation at CROI. Requests to publish or present research accepted for presentation at CROI prior to its presentation at CROI will be evaluated on a case-by-case basis. Failure to notify the conference promptly regarding plans to publish or present a CROI-accepted abstract prior to CROI may result in the removal of the study from the conference program.