Dr. Joss Reimer has been appointed as Canada’s new Chief Public Health Officer, a role she will officially assume on April 1. In her initial statements following the announcement, Reimer emphasised the urgent need to address the rampant health misinformation that has proliferated in recent years, exacerbated by the COVID-19 pandemic. During an interview, she underscored the importance of a proactive federal strategy to counteract false narratives that can undermine public health initiatives.
Confronting the Challenge of Misinformation
In her reflections on the current state of public health, Reimer pointed out the dynamic nature of misinformation and its ability to spread rapidly. “One of the biggest challenges with health misinformation is the speed at which it changes,” she noted. The COVID-19 pandemic has significantly eroded public trust in health institutions, a problem Reimer acknowledges will take years to mend.
“People faced unprecedented challenges—job losses, separation from loved ones—and regardless of the decisions made, the impact was profound,” she stated, highlighting the emotional toll of the crisis. Reimer is determined to spearhead efforts to rebuild trust in public health messaging, which she considers crucial for effective health policy.
A Legacy of Leadership
Reimer steps into her role following Dr. Theresa Tam, who became a well-recognised figure during the pandemic due to her regular updates and guidance. Tam retired in June after an impactful eight-year tenure. Reimer herself has considerable experience, having served as the chief medical officer for the Winnipeg health authority and leading Manitoba’s COVID-19 vaccine implementation task force.

Health Minister Marjorie Michel expressed confidence in Reimer’s capabilities, stating that her expertise comes at a vital juncture for Canadian public health. The country is currently facing a resurgence of vaccine-preventable diseases, such as measles, compounded by challenges like avian influenza, HIV, tuberculosis, and the ongoing opioid crisis.
Partnerships and Community Engagement
Reimer brings a unique perspective to the growing measles outbreak, being from an area experiencing significant vaccine hesitancy. “We need partnerships from community leaders at every level, right up to the federal government,” she said, stressing the importance of collaboration in tackling health issues.
The loss of Canada’s measles elimination status, which it held since 1998, is particularly alarming to public health experts. Reimer explained that the highly infectious nature of measles, combined with the prevalence of misinformation and vaccine hesitancy, has contributed to this decline.
The Path Forward
Addressing health misinformation is not confined to social media, as Canadian health officials have pointed out. The influence of external sources, particularly from the United States, has also been detrimental. Michel previously remarked that the erosion of reliable information in American institutions, particularly during the Trump administration, has had direct implications for Canadian public health responses.
Reimer affirmed the necessity for Canada to establish its own credible sources of information. “While there are still many dedicated professionals in the American system, we need to ensure that Canadians have access to trustworthy data,” she asserted.
With a master’s degree in public health and a history of advocating for improved healthcare access, Reimer is poised to make a significant impact. She has previously led the Canadian Medical Association and publicly apologised to Indigenous Peoples for historical injustices perpetuated by the medical community.
Dr. Margot Burnell, current president of the Canadian Medical Association, praised Reimer for her calm and decisive leadership during the pandemic, stating that she has been a strong voice against misinformation and a champion for equitable healthcare access.
Why it Matters
As Dr. Joss Reimer prepares to take on her new role, the challenges ahead are daunting yet crucial for the health of Canadians. The pandemic has illuminated the fragility of public trust in health systems, and misinformation continues to pose a significant threat to community health. Reimer’s commitment to transparency, collaboration, and rebuilding trust will be essential in ensuring that Canadians receive accurate information and effective healthcare solutions in the years to come. Her leadership could mark a turning point in how health information is communicated in Canada, potentially setting a precedent for public health strategies worldwide.