Dr. Joss Reimer has been appointed as Canada’s new chief public health officer, prioritising the fight against health misinformation and the urgent need to rebuild public trust. Announced on Friday, Reimer’s three-year appointment comes at a pivotal moment as Canada grapples with rising vaccine-preventable diseases and a public increasingly sceptical of health information. In an interview, she expressed the importance of a proactive government approach to countering false narratives that have proliferated, particularly during and after the COVID-19 pandemic.
Acknowledging the Challenge of Misinformation
Dr. Reimer, who hails from Manitoba, emphasised the rapid evolution of health misinformation, which poses significant challenges for public health. “One of the biggest challenges with health misinformation is the speed at which it changes, because it doesn’t take a lot of time to come up with a lie,” she remarked. This ongoing issue, she believes, has contributed to a decline in trust towards health institutions, a sentiment echoed by many Canadians during the pandemic years.
The COVID-19 crisis highlighted the vital role of public health officials, with Dr. Theresa Tam, Reimer’s predecessor, becoming a well-known figure as she provided regular updates to the nation. Tam retired in June after eight years of service, leaving behind a legacy that Reimer aims to build upon as she steps into her new role.
Building Trust and Addressing Vaccine Hesitancy
As a former chief medical officer for the Winnipeg health authority and the medical lead on Manitoba’s COVID-19 vaccine implementation task force, Reimer is intimately aware of the complexities surrounding vaccine hesitancy. Reflecting on recent measles outbreaks, she noted that her own community has experienced a fair amount of vaccine resistance. “We need to have partnerships from the ground up, from community leaders all the way to the federal government,” she asserted, underscoring the need for collaborative efforts to foster trust in vaccination programmes.

The resurgence of measles in Canada has resulted in the loss of the country’s elimination status, which had been maintained since 1998. Public health experts have voiced their concerns regarding the implications of this development, especially as misinformation continues to spread and vaccine hesitancy grows.
Responding to Public Health Threats
Health Minister Marjorie Michel highlighted the critical nature of Reimer’s appointment, noting that Canada is now facing a multitude of public health challenges, including outbreaks of vaccine-preventable diseases like measles, threats from avian influenza, and the ongoing impacts of the opioid crisis. “The harmful impacts of false health information cannot be understated,” Michel stated, reinforcing the urgency of Reimer’s mission.
In addressing the issue of misinformation, Reimer emphasised the necessity for Canada to cultivate its own reliable sources of information, particularly in light of the changing landscape of health communication in North America. “I know that there are still really amazing people in the American system doing wonderful work, and so I think that there’s a lot of ways that we can continue to work together,” she added, while firmly advocating for Canadian public health autonomy.
Reimer’s Vision for the Future
Reimer brings a wealth of experience to her new role, holding a master’s degree in public health and having served as past president of the Canadian Medical Association (CMA), where she previously apologised to Indigenous Peoples for the historical harms caused by the medical profession. Nancy Hamzawi, president of the Public Health Agency of Canada, expressed her enthusiasm for working with Reimer, stating that “strong, science-driven leadership has never been more important.”

Dr. Margot Burnell, the current president of the CMA, praised Reimer’s calm and measured approach during the pandemic, highlighting her commitment to combating misinformation and advocating for equitable access to healthcare across Canada. As Reimer prepares to begin her term on April 1, her vision for a more informed and healthier Canada is set to take centre stage.
Why it Matters
Dr. Reimer’s appointment is not just a change in leadership; it represents a critical juncture in Canada’s public health narrative. The challenges posed by misinformation and erosion of trust are profound, impacting how communities respond to health initiatives. Through her commitment to transparency, collaboration, and education, Reimer has the potential to pave the way for a renewed trust in public health, ensuring that Canadians receive the information and care they deserve. The stakes are high, and her success could reshape the future of health in Canada, fostering a culture of informed decision-making and community resilience.