Dr. Klein is a professor in the Division of Infectious Diseases at McGill University and a senior scientist in the Infectious Diseases and Immunity in Global Health Program at the Research Institute of the McGill University Health Centre. She also acts as an associate member in the Division of Clinical Epidemiology at the Royal Victoria Hospital, and an associate member in the Department of Epidemiology, Biostatistics, and Occupational health at McGill University.

Dr. Klein first completed her undergraduate degree in biology at Mount St. Vincent University. She earned her medical degree at McGill University, and then completed a specialization in internal medicine at the Royal Victoria Hospital and a research fellowship in infectious diseases at the University of Minnesota. Later on, she completed a master’s degree in epidemiology and biostatistics at McGill.

Her research focuses on the treatment of patients with HIV and chronic hepatitis. She is leading CTN 222, which is one of the largest multicenter cohort studies focusing on HIV/HCV co-infection in the world, involving over 1000 participants from across Canada. She is also pursuing her interest in understanding long term clinical and treatment outcomes in HIV infection through her involvement in CTN 242: Canadian observational cohort collaboration. Additional research interests include antiretroviral pharmacoepidemiology and HIV in women.

Dr. Klein was a CTN Postdoctoral Fellow from 1998-2000, during which time Dr. Richard Lalonde supervised her research. As national co-director, she is a prominent researcher, currently leading six CTN studies and acting as co-investigator for five more, as well as a prolific writer, having contributed to nearly 100 CTN research publications since 2008.