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Dr. Joss Reimer, recently appointed as Canada’s chief public health officer, has outlined her commitment to addressing health misinformation and rebuilding public confidence in health institutions. In an interview following the announcement of her three-year term, Reimer emphasised the urgent need for proactive measures to counteract the proliferation of false health narratives, particularly in light of the challenges posed by the COVID-19 pandemic.
Prioritising the Fight Against Misinformation
Reimer, a seasoned public health expert from Manitoba, underscored the relentless nature of health misinformation, stating, “One of the biggest challenges is the rapidity with which falsehoods can spread. It doesn’t take much time to create a lie.” The pandemic has severely undermined trust in health authorities, a sentiment echoed by many Canadians who faced job losses, separation from family, and confusion over public health directives during this tumultuous period.
Reimer acknowledged, “We have a significant amount of trust-building ahead of us, and this will take years.” As she steps into the role previously held by Dr. Theresa Tam, who retired after eight years, Reimer is acutely aware of the responsibility she carries to mend the frayed relationship between public health officials and the communities they serve.
Acknowledging Past Challenges
During her tenure as the chief medical officer for the Winnipeg health authority and as a key player in Manitoba’s COVID-19 vaccine rollout, Reimer observed firsthand the impacts of vaccine hesitancy and misinformation. She noted the alarming resurgence of vaccine-preventable diseases, including measles, which Canada has struggled to contain, prompting a loss of its measles elimination status for the first time since 1998.

Reimer highlighted her personal connection to the current outbreak, stating, “I come from a small town that is part of the measles outbreak, where we’ve seen considerable vaccine hesitancy.” She stressed the importance of fostering partnerships at all levels—community leaders, local governments, and federal agencies—to effectively combat these public health threats.
The Broader Public Health Landscape
Federal Health Minister Marjorie Michel remarked on the significance of Reimer’s appointment, particularly in the context of multiple health challenges facing Canada today. These include rising cases of avian influenza A (H5N1), HIV, tuberculosis, and the ongoing opioid crisis—all compounded by the detrimental effects of misinformation.
In addressing the recent rise in measles cases and other health concerns, Reimer asserted that misinformation is not confined to social media platforms. She pointed to the broader implications of changing political landscapes in the United States, which have affected the reliability of health information sources. “While there are still dedicated professionals in the American health system, Canada must ensure it provides trustworthy information independently,” she stated.
Commitment to Science-Based Leadership
Reimer brings with her a wealth of experience, including a master’s degree in public health and a history of advocating for evidence-based public health policies. Her leadership during the pandemic was noted for its calmness and clarity, traits that Dr. Margot Burnell, current president of the Canadian Medical Association, praised as essential during such critical times.

Furthermore, Reimer has a proven track record in addressing the needs of Indigenous Peoples, having formally apologised to them for historical harms caused by the medical profession during her presidency at the Canadian Medical Association. This commitment to equity and justice continues to resonate in her vision for public health in Canada.
Why it Matters
Dr. Joss Reimer’s appointment comes at a pivotal moment for Canada’s healthcare system, where trust in public health is at a low ebb, and the stakes are higher than ever. As misinformation continues to circulate, Reimer’s proactive stance and emphasis on collaboration across all levels of society will be crucial in restoring faith in public health initiatives. The long-term success of this mission will not only affect the immediate response to health crises but will also shape the future of healthcare in Canada, ensuring that every citizen has access to accurate information and the support they need to make informed health decisions.