Gray is President/CEO of the South African Medical Research Council, Research Professor in Paediatrics at the University of the Witwatersrand, and Member (Professor) in the Vaccine & Infectious Disease Division at the Fred Hutch Cancer Research Center, in Seattle. A Medical Doctor, specialising in Paediatrics, she started her research career in the field of preventing mother to child transmission of HIV-1 (PMTCT). She was awarded a Fogarty Fellowship to study clinical epidemiology at Cornell and Columbia Universities (1999), enabling her to broaden her investigative interests to include: clinical trial design; vaccine. She developed her research in post-natal transmission, focusing on breast-feeding, infant survival and post-exposure prophylaxis. Gray collaborated in multi-country efforts to find short-course and affordable antiretroviral interventions for PMTCT. She co-founded with James McIntyre the Perinatal HIV Research Unit (PHRU) at Baragwanath Hospital, which is now a world-renowned research unit focused on HIV prevention and treatment with grants awarded through competitive international processes from the NIH, USAID, amongst others, amounting to over R120 million pa.

Lynn Morris was appointed as the Deputy Vice-Chancellor for Research and Innovation at Wits University from 1 April 2021. Her previous positions include Interim Executive Director of the National Institute for Communicable Diseases (NICD) and Principal Medical Scientist and head of the HIV Virology Section at the NICD, Johannesburg, South Africa. She holds a joint appointment as Research Professor at the University of the Witwatersrand and an Honorary appointment as a Senior Scientist at CAPRISA. She completed her undergraduate studies at Wits University and obtained a DPhil from the University of Oxford in 1988. Lynn is an NRF A-rated researcher (leading international scholar) who has made significant contributions to our understanding of how the antibody response to HIV develops and her laboratory conducts validated end-point assays for HIV vaccine clinical trials. She has been recognised through several national and international awards including the Wits Vice Chancellor’s Research Award and The World Academy of Sciences (TWAS) Prize in Medical Sciences. She has supervised 30 PhD and MSc students, has published over 270 papers holding a current author H-Index of 63