She has also previously worked for Porter Novelli and Burson-Marsteller and has spent the past year as a freelance. At Edelman, Turner-Samuels is working on the agency's global eyecare accounts.
Addow is ex-Hill & Knowlton, where she was a senior account manager working for Genosis and Crookes Healthcare.
Separately, Steve Spurr – an eight-year agency stalwart – has been promoted to a board director role at Edelman, reporting to UK health MD Mike Kan.
The hires take Edelman's healthcare team to 44.