Audrey Pettifor Archives | Institute for Global Health and Infectious Diseases

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Trajectories and Predictors of HIV Care Retention Among Individuals Receiving ART in Rural South Africa

August 15, 2025

Successful retention in care of people living with HIV remains a challenge and a cornerstone of ending the epidemic. Audrey Pettifor, PhD, conducted a population-based cohort study of individuals receiving antiretroviral therapy (ART) in ten health care facilities within the Agincourt Health and Socio-Demographic Surveillance System site in Mpumalanga, South...

Mixed-Method Longitudinal Investigation of Sexual and Gender-Based Violence Following COVID-19 in South Africa

Throughout the COVID-19 pandemic, concerns were raised about the unintended effects of measures taken to prevent its spread on sexual and gender-based violence (SGBV). A mixed-method longitudinal study run by Audrey Pettifor, PhD, characterized trajectories of household-level and partner-level SGBV exposure over 6 months, approximately 1 year after the initial COVID-19...

Evaluating Concurrency and Gaps Between Self-Report and Vaccine Card Data for COVID-19 Vaccination

Biomarkers or medical data verified by a medical provider are generally considered to be more reliable than self-reported data, but researchers often face challenges when collecting medical record verification or biomarkers from young adults (YA) in research. Edward P. Browne, PhD, and Audrey Pettifor, PhD, analyzed data from a randomized controlled...

Effectiveness of Levonorgestrel Implant and Depot Medroxyprogesterone Acetate Injectable for Women living with HIV on Efavirenz

A collaborative study that included the Institute for Global Health and Infectious Diseases, UNC Project-Malawi, and the UNC Center For AIDS Research (CFAR), compared the contraceptive effectiveness of a typical-use LNG implant and depot medroxyprogesterone acetate (DMPA) injectable during efavirenz use. The study included women living with HIV (WLHIV) on...

NIAID recognizes HPTN’s groundbreaking work in covid prevention tools

The 2022 HPTN Annual Meeting took place June 5-8 in Washington, D.C., bringing hundreds of worldwide researchers, collaborators, community representatives, and government health officials together to share updates and accomplishments and re-engage with each other as a community. HPTN Principal Investigators Myron Cohen, MD, director of the UNC Institute for...

Effect of intimate partner violence on oral PrEP adherence among adolescent girls and young women

Intimate partner violence events may either impede or motivate PrEP adherence among African adolescent girls and young women, with age appearing to be an important consideration for IPV-related adherence interventions, according to IGHID researchers Lisa Hightow-Weidman, MD, MPH, professor of infectious diseases and principal investigator for the UNC Behavioral and...