1. Department of Nutrition, University of Venda, Thohoyandou, Limpopo Province, South Africa
2. Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA
3. Fogarty International Center, National Institutes of Health, Bethesda, MD, USA
4. Department of Global Health and Population at Harvard T.H. Chan School of Public Health, Boston, MA, USA
5. HIV/AIDS & Global Health Research Programme, University of Venda, Thohoyandou, South Africa