Dr. Joss Reimer, appointed as Canada’s new Chief Public Health Officer, has identified addressing health misinformation and restoring public trust as her foremost objectives. Announced on Friday, Reimer emphasised the necessity for the federal government to adopt a proactive stance in countering the rapidly changing landscape of misinformation that has plagued public health discourse.
Acknowledging the Trust Deficit
In her first media interview since the announcement of her three-year appointment, the Manitoba native reflected on the challenges that arose during the COVID-19 pandemic. The crisis, she acknowledged, had significantly undermined trust in health institutions. “The pandemic created immense difficulties—people lost jobs, income, and faced separation from loved ones,” Reimer stated. “There’s a lot of rebuilding to do, and it’s going to take years to regain that trust.”
The pandemic thrust public health officials into the limelight, with Dr. Theresa Tam, Reimer’s predecessor, becoming a familiar figure as she provided regular updates on the evolving situation. After eight years in the role, Tam retired in June, leaving behind a legacy of resilience and adaptability in public health communication.
Experience in Public Health Leadership
Reimer’s experience during the pandemic is noteworthy. As the Chief Medical Officer for the Winnipeg health authority and a leader in Manitoba’s COVID-19 vaccination efforts, she has been at the forefront of public health initiatives. Now, as she steps into her new role, she acknowledges the immediate need to address a resurgence of vaccine-preventable diseases, including measles, compounded by the ongoing impacts of misinformation.

Health Minister Marjorie Michel highlighted the urgency of Reimer’s appointment, stating, “Canada faces a resurgence of vaccine-preventable diseases such as measles, avian influenza A (H5N1), HIV, and tuberculosis, alongside the ongoing illegal drug crisis and the detrimental effects of false health information.”
The Measles Crisis and the Need for Action
Reimer brings a personal understanding to the current measles outbreak, which has seen Canada lose its measles elimination status for the first time since 1998. “I come from a small town that is part of the outbreak and has experienced significant vaccine hesitancy,” she explained. “We need partnerships that span from community leaders to the federal government to effectively address these challenges.”
Public health experts have sounded alarm bells regarding the resurgence of measles, noting its highly contagious nature coupled with rising misinformation and vaccine hesitancy. Reimer stated, “It is not surprising that we are witnessing an increase in cases, especially given how incredibly infectious measles is.”
The Role of Misinformation in Public Health
Misinformation, Reimer cautioned, is not confined to social media platforms but is pervasive across various channels. In a previous assessment, Minister Michel indicated that the relationship between Canadian and American health institutions has shifted dramatically, particularly since the Trump administration’s disregard for scientific integrity. “The trust we once had has been compromised,” she noted.

Reimer asserted the importance of Canada establishing its own reliable sources of information, while still maintaining collaboration with American counterparts. “There are still outstanding professionals in the American system doing remarkable work, and I believe there are ample opportunities for productive cooperation,” she commented.
A Commitment to Public Health
Armed with a master’s degree in public health and a history of tackling issues related to sexually transmitted diseases and drug-related harms, Reimer is well-equipped for her new role. Nancy Hamzawi, President of the Public Health Agency of Canada, expressed enthusiasm for working with Reimer, stating, “At a time when strong, science-driven leadership has never been more vital, I am confident that her vision and dedication will advance the public health and well-being of Canadians.”
Reimer’s previous tenure as the president of the Canadian Medical Association included a formal apology to Indigenous Peoples for historical harms caused by the medical profession. Current CMA President Dr. Margot Burnell praised Reimer’s calm and measured leadership during the pandemic, highlighting her advocacy against false health information and commitment to improving access to care for all Canadians.
As Reimer prepares to officially begin her term on April 1, her leadership will be pivotal in navigating the complexities of public health in a post-pandemic landscape.
Why it Matters
The appointment of Dr. Joss Reimer comes at a critical juncture for public health in Canada. With trust in health institutions at an all-time low and misinformation proliferating, her leadership will be essential in rebuilding confidence among Canadians. As the country grapples with the resurgence of vaccine-preventable diseases and the ongoing fallout from the pandemic, her proactive approach to combating misinformation and fostering public trust will determine the future effectiveness of health initiatives in Canada. In an era where accurate health information is paramount, Reimer’s tenure could mark a turning point for the nation’s public health landscape.