Theresa Tam
Theresa Tam (; born 1965) is a Canadian physician and public servant who served as the
chief public health officer of Canada (CPHO), the second-in-command of the
Public Health Agency of Canada (PHAC). Tam initially took the role as acting CPHO following the retirement of her predecessor,
Gregory Taylor, on December 16, 2016. She was formally appointed on June 26, 2017. She stepped down as CPHO on June 20, 2025.
Tam has played a leadership role in Canada's response to public health emergencies, including
SARS,
H1N1,
MERS,
Ebola, and
COVID-19. She has also worked towards eradicating
polio.
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