Andrew is professor emeritus of epidemiology at the Medical Research Council (MRC) Clinical Trials Unit at UCL, London. He received a BSc in Mathematics (1965) and a MSc in Statistics (1966) from the University of Sussex UK. In all of his professional life from 1966 to the present time he has been employed by the MRC. This included the MRC Tuberculosis & Chest Diseases Unit (1966-89), MRC Uganda AIDS programme where he was deputy director (1989-1995) and the MRC Clinical Trials Unit at UCL where he is currently affiliated. Andrew is a statistician and clinical trialist and has worked primarily in TB and HIV but also in a number of other disease areas. His work has primarily been in clinical trials in the developing world but also head of a division within the Clinical Trials Unit responsible for developing trials in neglected disease areas and areas with a poor infrastructure for conducting clinical trials. He has over 250 publications in peer reviewed journals. These include the landmark trials in TB which shorted treatment from 24 to 6 months worldwide, working with Professors Wallace Fox and Denny Mitchison. Most recently he was co-chief investigator of the STREAM trial, the first international phase 3 trial in multi-drug resistant TB. He is a lifetime honorary member of the International Union Against Tuberculosis & Lung Disease and in 2018 received the Union Medal in recognition of a "distinguished career and outstanding contributions of lung health".