| EPC428 | Scale-up of enhanced adherence counseling through targeted mentorship and telemedicine: lessons from a general hospital in Lusaka, Zambia | E-poster | Strategies to improve retention in care beyond the first year on ART |
| EPC429 | Telemedicine results in shorter clinical visit turnaround time for adult recipients of care in Lusaka, Zambia: implications for treatment initiation and adherence | E-poster | Strategies to improve retention in care beyond the first year on ART |
| EPC430 | Change in HIV clinical characteristics from time of loss to follow-up to return to care | E-poster | Strategies to improve re-engagement |
| EPC431 | Loss to follow-up in HIV care: Issues in retention and re-engagement among People Living with HIV (PLHIV) in 13 African countries | E-poster | Strategies to improve re-engagement |
| EPC432 | Substance use and psychosocial factors limit inpatient to outpatient transition of HIV care | E-poster | Strategies to improve re-engagement |
| EPC433 | Data linkages, resource sharing, and collaboration: optimizing HIV Out-of-Care Re-engagement between siloed public health entities in Florida, USA | E-poster | Strategies to improve re-engagement |
| EPC434 | The impact of COVID-19 on a health workforce providing HIV services in South Africa | E-poster | Epidemiology of COVID-19 |
| EPC435 | Preliminary estimate of SARS-CoV-2 vaccine effectiveness among healthcare workers ' Zambia, 2021 | E-poster | Epidemiology of COVID-19 |
| EPC436 | SARS-CoV-2 antibodies prevalence among sexual and gender minorities youth in Brazil | E-poster | Epidemiology of COVID-19 |
| EPC437 | Knowledge, attitudes, practices and perceptions of the populations of the Koulikoro region (Mali) on the COVID-19 pandemic | E-poster | Epidemiology of COVID-19 |