Founding Director: Colin Hall, MBChB (Emeritus)


Dr. Colin Hall founded the AIDS Neurological Center in 1988 with a program project grant award to establish an AIDS Dementia Center. Dr. Hall is past Chair of Neurology at UNC, has conducted extensive NeuroAIDS research including clinical trials in Progressive Multifocal Leukoencephalopathy, other HIV CNS opportunistic infections, and peripheral neuropathy. Dr. Hall has been principal investigator on numerous NIH grants in HIV, including aspects of epidemiology, neuroimaging, and women. Dr. Hall was director of the Center from 1988 to 2007.

Investigator: Bill Powers, MD


Dr. Bill Powers is a H. Houston Merritt Distinguished Professor and Chairman of Adult Neurology at UNC. Dr. Powers conducts clinical research in cerebral blood flow and metabolism, and stroke treatment and prevention.

Investigator: Rick Meeker, PhD


Dr. Rick Meeker is a Professor in Basic Neuroscience at UNC. His research interests include Brain cholinergic receptors, vasopressin, AIDS research, HIV and FIV.


Investigator: Ron Swanstrom, PhD

 Ron Swanstrom, PhDDr. Ron Swanstrom is a Professor of Biochemistry at UNC and Director of UNC Center For AIDS Research (CFAR). Dr. Swanstrom is the principle investigator of the Swanstrom Lab which focuses on researching the evolution of HIV-1 as the result of virus-host interactions, the nature of drug resistance to HIV-1 protease inhibitors, and the development of an HIV-1 vaccine.

Investigator: David Margolis, MD

David MargolisDr. David Margolis is a Professor of Microbiology and Immunology at UNC School of Medicine. He is the principle investigator of Margolis Lab and actively involved in researching HIV molecular biology and virology, latency and persistence of HIV infection, antiretroviral therapy, and clinical/translational investigation.

Investigator: David Whol, MD

David Whol, MDDr. David Wohl is an Associate Professor of medicine at UNC and co-directs HIV services for the North Carolina Department of Corrections. Dr. Wohl is an investigator in the NIAID-sponsored AIDS Clinical Trials Group (ACTG) and a member of the ACTG Complications of HIV Disease Research Agenda Committee. His research focuses on metabolic and infectious complications of HIV and its therapies, as well as issues related to medication adherence and access to care — particularly among incarcerated inmates with HIV infection.

Investigator: Joe Eron, MD

Joe Eron, MDDr. Joe Eron is a professor of medicine in the Division of Infectious Diseases at the UNC Chapel Hill School of Medicine. He is the principal investigator of the UNC AIDS Clinical Research Group, the director for the Clinical Core of the UNC Center for AIDS Research, and also the associate director of the UNC General Clinical Research Center (GCRC).

Investigator: Charlie van de Horst, MD

Charlie van der HorstDr. Charlie van der Horst has been involved in HIV/AIDS clinical research since 1986. Since 2001 he has been working in South Africa and Malawi conducting clinical research and enhancing the care of patients with HIV infection. Dr. Troster is a Professor and Associate Chief in the department of Infectious Diseases at UNC. He is also the Director of the AIDS Clinical Trials Unit as well as the Developmental Core Director for UNC Center for AIDS Research.

Investigator: Weili Lin, MD, PhD


Dr. Weili Lin is a Professor of Radiology, Neurology, and Biomedical Engineering at UNC. He is also the Director of the MR Research Center and the Small Animal Imaging Core Facility, as well as the Associate Director of the Biomedical Research Imaging Center (BRIC).

External Faculty

Sen SouvikSouvik Sen, MD, MPH

Dr. Souvik Sen is a professor and Chair of the Neurology Department at the University of South Carolina School of Medicine. His specific research interests include acute stroke treatment, stroke and TIA pathophysiology, stroke prevention and epidemiology.


Babafemi Taiwo, MBBSBabafemi Taiwo, MBBS

Dr. Babafemi Taiwo is the Director of Research in Africa, Center for Global Health, Northwestern University Feinberg School of Medicine. His interest is in clinical HIV/AIDS research, particularly in the United States and sub-Saharan Africa with a focus on optimal approaches to HIV treatment using antiretroviral drugs in established and novel combinations.

Baiba Berzins, MPHBaiba Berzins, MPH

Baiba Berzins is the Project Manager for the Center for Global Health at Northwestern University Feinberg School of Medicine. She is responsible for the development and implementation of HIV clinical research projects.

Dr. Adesola Ogguniyi, MBChBDr. Adesola Ogguniyi, MBChB

Dr. Ogunniyi is Professor of Medicine (Neurology), College of Medicine, University of Ibadan and Consultant Neurologist to the university College Hospital, Ibadan.


Ned Sacktor, MDNed Sacktor, MD

Dr. Ned Sacktor is the Director of Clinical Outcomes Core and Professor of Neurology at Johns Hopkins University School of Medicine. He focuses on general neurology with a special interest in dementia and behavioral neurology, primarily the the cognitive manifestations of HIV infection.


Christina Marra, MDChristina Marra, MD

Dr. Christina Marra is a Professor of Neurology and Adjunct Professor of Medicine for the Division of Allergy and Infectious Disease at University of Washington School of Medicine. She focuses on infections of the nervous system, and in particular syphilis and HIV.


Research Assistant: Sarah Yosief

Sarah Yosief is a research assistant in the AIDS Neurological Center. Sarah performs the neurocognitive assessments for the NeuroAIDS clinical trials and patient consults at UNC. Sarah also conducts basic neuroscience research on neurotoxicity of antiretroviral drugs, develops NeuroAIDS diagnosis programs, constructs websites for UNC sponsored NeuroAIDS conferences, and creates training materials for international NeuroAIDS research.