Dr. Stephen Walker is the consultant dermatologist at the Hospital for Tropical Diseases in London and Associate Professor at the London School of Hygiene and Tropical Medicine.

His research interests include the management of leprosy reactions and he leads the Erythema Nodosum Leprosum International STudy (ENLIST) Group https://www.lshtm.ac.uk/research/centres-projects-groups/enlist.

Identifying strategies for improving community-based diagnosis and management of skin neglected tropical diseases and reducing the impact of common skin diseases is a current avenue of research with colleagues from Ethiopia and Ghana.