His research focuses on clinical trials and epidemiological studies of HIV related infections, malaria and envenoming. He has also worked extensively on COVID in the last three years. He has active collaborations in a number of countries including Malawi, Uganda, Sri Lanka, Vietnam, Kenya, Nigeria, eSwatini, Ghana, Sierra Leone and South Africa. He has particularly worked with the MLW Programme(link is external)(opens in a new tab) in Malawi for over twenty years and has a strong interest in identifying and supporting young UK and African clinicians interested in tropical research and strengthening scientific capacity in resource poor settings.