| EPC179 | Characterising heterosexual men's demand for and uptake of pre-exposure prophylaxis (PrEP) for HIV prevention in South Africa | E-poster | Demonstration and pilot projects for prevention (including PrEP, PEP, male circumcision) |
| EPE297 | Changing time changing approaches: exploring the use of mobile libraries in the dissemination of HIV/AIDS awareness information | E-poster | Systems serving underserved populations |
| EPB170 | Changes innonalcoholicfatty liverdiseasespectrum and metabolic markers in people with HIV after switching to a raltegravir-based regimen | E-poster | Regimen simplification and switch studies |
| PESAE13 | Changes in 'Undetectable Equals Untransmittible' (U=U) knowledge and practices by HIV and PrEP status among gay, bisexual, queer and trans men and Two-Spirit and non-binary people across Canada, 2015-2021 | Poster exhibition | Strategies to enhance U=U communication and implementation |
| EPD118 | Changes in survival of HIV-positive heroin use disorder patients admitted to treatment in Barcelona, Spain: a 30-year multicenter observational study | E-poster | People who inject drugs |
| EPE384 | Changes in sexual behaviors and testing for HIV and sexually transmitted infections among transgender women at Tangerine Clinic during COVID-19 lockdown | E-poster | Impact of COVID-19 on HIV prevention services |
| EPD521 | Changes in sexual behavior among men who have sex with men during the spread of COVID-19 in China: results of an online survey | E-poster | Social and behavioural aspects and approaches to COVID-19 |
| EPD384 | Changes in intimate partner violence among WLHIV in Tanzania before and during COVID-19 | E-poster | Sexual- and/or gender-based violence and exploitation (including in conflict settings) |
| EPB165 | Changes in inflammatory biomarkers and baseline variables after switching to dolutegravir/lamivudine (DTG/3TC) in 2 randomized clinical trials of virologically suppressed adults: 48-week pooled analysis | E-poster | Regimen simplification and switch studies |
| EPD551 | Changes in depression after COVID-19 lockdown: Findings from a 4-year longitudinal study of young MSM living with HIV in Bangkok | E-poster | COVID-19: Associated mental health challenges for people living with HIV |