Have you been infected with COVID-19? Are you a solid organ transplant recipient? Have you or your child received a COVID-19 vaccine or are planning to receive one? If so, you may be eligible to participate in a research study that will assess your immune response to COVID-19 infection or vaccination over a 5 year period. We are looking for children and adults aged 7-95 years, and plan to collect blood every 2-6 months over the study period. (Compensation provided for the first year).

The purpose of this research study is to learn about HIV transmission and strategies for prevention. We are looking for people living with or at risk for HIV in the Raleigh area and learning more about the people they know in the community.

This project seeks to adapt and test the existing Tough Talks app to address COVID vaccine hesitancy among African American young adults (AA-YA) aged 18-29.

In this study, we want to learn more about a program (STOMP) designed to improve chronic pain in people living with HIV.

The purpose of this study is to conduct interviews to hear people's thoughts and feedback on various aspects of conducting syphilis vaccine research at UNC-Chapel Hill and to ask them to complete a brief online survey after their interviews. The information that participants provide will help the clinical trial researchers to better understand what concerns people might have about syphilis vaccine research and to design clinical trials that are acceptable to potential vaccine research participants.

The purpose of this research study is to learn from YMSM about their perceptions of two phone apps designed to increase HIV testing, PrEP uptake, and other prevention strategies. We also want to learn about whether the apps encourage behavior change, as they are designed to do.

This study allows for the collection of a large volume of stem cells via Leukapheresis from healthy HIV negative donors. These stem cells are then aliquoted and frozen for use by the Garcia Lab in the production of HIV negative (delta 32 negative) humanized mice.

The reasons this study is being conducted are: • To see if human immunodeficiency virus (HIV) antiretroviral medicines that you are taking continue to work well in transgender women and other individuals identifying as female or transfeminine but with male sex assigned at birth (referred to as transgender women throughout this form) when taken with feminizing hormone therapy (FHT), also known in this study as estradiol; and • To see if estradiol levels in blood vary between boosted and un-boosted HIV medicines when transgender women are taking different doses of FHT.

The purpose of this project is to understand, from the perspective of medical providers and community health workers (CHWs), the barriers and facilitators that people released from prison experience in establishing and engaging with health care, and how those barriers and facilitators may be impacted by participation in the FIT and FIT Connect transitional health care programs.

The purpose of this project is to understand, from the perspective of formerly incarcerated individuals, the barriers and facilitators that people released from prison experience in establishing and engaging with health care, and how those barriers and facilitators may be impacted by participation in the FIT and FIT Connect transitional health care programs.