Dr. Joss Reimer, newly appointed as Canada’s chief public health officer, is prioritising the fight against health misinformation and the restoration of public trust in health institutions. In her first interview since the announcement of her three-year term, Reimer emphasised the urgent need for a proactive governmental approach to counter the rapid spread of false health information, particularly in the wake of the COVID-19 pandemic.
Addressing Misinformation Head-On
Reimer, a native of Manitoba, stated that one of the greatest difficulties in tackling health misinformation lies in its swift evolution. “It doesn’t take much time to create a lie,” she noted, reflecting on the challenges that misinformation presents to public health. The pandemic not only heightened the visibility of health officials but also contributed significantly to the erosion of trust in those institutions.
“People faced immense hardships—job losses, separation from loved ones—and whether those decisions were right or wrong, they created a complex landscape of distrust,” Reimer explained. Rebuilding that trust, she believes, will be a long-term endeavour requiring concerted efforts over several years.
A Critical Moment for Public Health
Reimer steps into her role at a pivotal juncture for Canada. Health Minister Marjorie Michel pointed out that the country is grappling with a resurgence of vaccine-preventable diseases, including measles, alongside threats from avian influenza A (H5N1), HIV, and tuberculosis. Additionally, the ongoing crisis related to illicit drugs further complicates the public health landscape.

Reimer, who previously served as the chief medical officer for the Winnipeg health authority, has firsthand experience with the recent measles outbreak. “Coming from a small town affected by the outbreak, I’ve witnessed significant vaccine hesitancy,” she remarked. The loss of Canada’s measles elimination status, which had been maintained since 1998, is particularly alarming to health experts, especially as misinformation continues to fuel public hesitancy towards vaccinations.
The Need for Collaborative Solutions
Recognising the intricacies of the misinformation challenge, Reimer calls for collaboration between community leaders and federal authorities. “We need partnerships from the ground up,” she asserted, underscoring the importance of local engagement in addressing health concerns.
Moreover, she highlighted that misinformation is not confined to social media platforms; it has permeated various channels, presenting a complex hurdle for public health messaging. As Reimer pointed out, the historical context of misinformation in the U.S. under the Trump administration has left lasting repercussions on the reliability of health information in Canada.
“Our nation must ensure it stands independently and shares credible information,” she said, while acknowledging the valuable contributions of American health experts.
A Legacy of Leadership
Reimer holds a master’s degree in public health and has a robust background in research concerning sexually transmitted diseases and drug-related harms. Her previous leadership roles, including her tenure as past president of the Canadian Medical Association (CMA), showcase her commitment to addressing health misinformation and advocating for equitable access to healthcare across Canada.

Nancy Hamzawi, president of the Public Health Agency of Canada, expressed confidence in Reimer’s leadership, stating, “At a time when strong, science-driven leadership has never been more important, I am confident that her vision and dedication will help advance the public health and well-being of Canadians.”
Dr. Margot Burnell, current president of the CMA, praised Reimer for her calm and measured approach during the pandemic, highlighting her role in combating misinformation and improving healthcare access.
Reimer’s term officially commences on April 1, marking a significant chapter in Canada’s public health narrative.
Why it Matters
The appointment of Dr. Joss Reimer as chief public health officer signals a renewed commitment to addressing the critical challenges posed by health misinformation and the need for rebuilding trust in public health institutions. As Canada confronts a resurgence of preventable diseases and the fallout from a global health crisis, her leadership will be pivotal in fostering a more informed, healthier society. The path forward requires not only sound policy but also a concerted effort to engage communities in constructive dialogues about health, ultimately shaping a resilient public health framework for the future.