Sam (MBChB, MMED in Paediatrics & Child Health, Dphil in Clinical Medicine), is a Principal Investigator at the Health Services Unit, Nairobi, and a Visiting Research Fellow, University of Oxford. He is a consultant paediatrician and did his medical education in Kenya and his Dphil studies at the University of Oxford. His Dhil, awarded in 2012, investigated haemodynamic status of children with severe febrile illnesses. Sam took a research break between 2012-2015 to obtain specialist medical training and re-joined KWTRP in 2016 as a post-doctoral researcher focussing on understanding the impact of recommended interventions of survival of hospitalised children.