Dr Costiniuk completed medical school at McMaster University in Hamilton, Ontario. This was followed by training in Internal Medicine and Infectious Diseases at the University of Ottawa, then a Master’s degree in Microbiology and Immunology. Following her Master’s, Dr Costiniuk pursued an HIV research fellowship at the KwaZulu-Natal Research Institute for Tuberculosis and HIV (K-RITH) in Durban, South Africa and local hospitals. Following her return to Canada, she joined McGill’s Department of Medicine, Division of Infectious Diseases as assistant professor in 2014. Her experience in South Africa inspired her current clinical and translational research program focused on understanding potential factors associated with accelerated chronic lung disease, such as pulmonary inflammation and pulmonary immune abnormalities, in HIV-infected individuals on effective antiretroviral therapy. A former CIHR Canadian HIV Trials Network (CTN) fellow, she remains dedicated to HIV clinical care and teaching at the Chronic Viral Illnesses Service and research as an investigator of the Research Institute of the McGill University Health Centre.