After getting her PhD at the Imperial Cancer Research Fund in 1994, she started working at the London School of Hygiene and Tropical Medicine, where she became Professor of Epidemiology.
Helen Anne Weiss, a cancer epidemiology student at the University of Oxford, received her PhD there at the Imperial Cancer Research Fund; her 1994 doctoral dissertation, Cancer epidemiology: with special reference to the long-term effects of explosure to ionizing radiation, was supervised by Sarah Darby.
[1][2] After working abroad at the National Cancer Institute in the United States during her postdoctoral career, she started working at the London School of Hygiene and Tropical Medicine in 1997;[3] there, she was Reader in Epidemiology and International Health as late as 2019,[4] before becoming Professor of Epidemiology sometime before 2020.
[5] Her research on decreased HIV risk for heterosexual circumcised men inspired guideline reforms by the World Health Organization.
[3][1] In 2019, she served on the World Health Organization Technical Advisory Group on Innovations in Male Circumcision as a member.