Deenan Pillay is an academic clinical virologist. After a PhD in metabolic biochemistry, he studied medicine and specialised in virology. Following an NIH Fellowship on HIV drug resistance with Doug Richman (UCSD in 1993) he became Head of the then Public Health Laboratory Service National reference service for antiviral drug resistance, in Birmingham UK, before moving to University College London(UCL) in 2003, where he became Professor of Virology and Head of the Division of Infection and Immunity. His research has focused on HIV therapy, drug resistance and transmission dynamics. In 2013, he was seconded from UCL to become Director of the Wellcome Trust-funded Africa Centre for Population Health, in KwaZulu Natal, South Africa. In 2016, the Africa Centre merged with the Durban-based HHMI-funded KwaZulu Natal Research Institute for HIV and TB (K-RITH), to become the Africa Health Research Institute (AHRI), where Deenan is Institute Director. This is an independent institute, incorporating 350 staff, focusing on laboratory, clinical and population based research on HIV, TB and related diseases.