Dr. Joss Reimer, recently appointed as Canada’s chief public health officer, has outlined her commitment to tackling health misinformation and restoring public confidence in health authorities. In her first interview following the announcement of her three-year tenure, the Manitoba native emphasised the importance of a proactive federal approach to counteract the rapid spread of false health information, a challenge that has been exacerbated in recent years.
Addressing the Misinformation Crisis
Reimer’s appointment comes at a critical juncture for Canadian public health, as the nation grapples with a resurgence of vaccine-preventable diseases. In her remarks, she highlighted the alarming rise in misinformation, noting that “one of the biggest challenges with health misinformation is the speed at which it changes.” The consequences of this misinformation have been significant, contributing to a decline in vaccination rates and, subsequently, public health outcomes.
The COVID-19 pandemic has significantly impacted public trust in health institutions, with Reimer acknowledging that many Canadians felt disconnected from the decisions made regarding their health. “There was so much difficulty — people were losing jobs and income, people were being separated from loved ones. And whether or not those were right decisions, it was hard,” she remarked. This erosion of trust will require years of concerted effort to mend, she believes.
The Legacy of Dr. Theresa Tam
Reimer steps into her new role following the retirement of Dr. Theresa Tam, who became a prominent figure throughout the pandemic, delivering near-daily updates to a nation in distress. Tam’s tenure, lasting eight years, was defined by her dedication to transparent communication and evidence-based guidance. As Reimer prepares to lead, she brings her own wealth of experience from her time as Manitoba’s chief medical officer and her significant role in the province’s COVID-19 vaccine task force.

Health Minister Marjorie Michel acknowledged the challenges ahead for Reimer, noting that she assumes her responsibilities at a time when Canada faces issues such as avian influenza, HIV, tuberculosis, and the ongoing opioid crisis. “The harmful impacts of false health information cannot be understated,” Michel stated, underscoring the multifaceted nature of public health challenges.
Rebuilding Community Partnerships
Reimer’s unique perspective on public health is informed by her experiences in a small town grappling with vaccine hesitancy during a measles outbreak. She stressed the necessity of partnerships at all levels, from local community leaders to federal authorities, to effectively address these challenges. The measles outbreak has raised alarms, as Canada has lost its measles elimination status that it held since 1998, a concerning trend echoed by public health experts nationwide.
She explained that the highly contagious nature of measles, coupled with increasing vaccine hesitancy and misinformation, has contributed to the current situation. “It’s not a shock that measles cases are on the rise,” Reimer stated, reinforcing the urgency of fostering community trust and engagement around vaccination.
The Role of Accurate Information
In a landscape where misinformation is rampant, Reimer believes Canada must ensure it disseminates reliable and accurate health information. She noted that misinformation is not solely confined to social media, highlighting the need for a robust strategy to combat false narratives that can emerge from various sources. Reimer pointed out that the implications of misinformation extend beyond Canada’s borders, particularly in light of the changing dynamics of public health communication in the United States.

While acknowledging the challenges posed by misinformation, Reimer expressed optimism about the collaborative efforts that can still be pursued with American health institutions. “I know that there are still really amazing people in the American system doing wonderful work,” she said, suggesting that partnerships could yield positive outcomes despite the current climate.
Leadership and Vision for the Future
Reimer holds a master’s degree in public health and has a history of addressing crucial health issues, including sexually transmitted diseases and drug-related harms. 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, the current president of the Canadian Medical Association, praised Reimer’s calm and measured leadership during the pandemic, highlighting her advocacy against false health information and her commitment to improving healthcare access throughout Canada.
Reimer is set to officially begin her term on April 1, and as she takes on this vital role, her focus on rebuilding trust and combating misinformation will be essential in shaping the future of public health in Canada.
Why it Matters
Dr. Joss Reimer’s leadership comes at a crucial time for Canadian healthcare, as the nation confronts not only the immediate challenges of disease resurgence but also the long-standing effects of mistrust and misinformation. Her commitment to rebuilding community trust and providing accurate health information is pivotal in ensuring that Canadians receive the guidance they need to make informed health decisions. The implications of her efforts will resonate not only within Canada but could serve as a model for public health initiatives globally.