Dr. Joss Reimer has been appointed as Canada’s new Chief Public Health Officer, assuming her role on April 1. With a focus on addressing health misinformation and restoring public trust, Reimer emphasises the necessity for proactive measures from the federal government. In a recent interview, she reflected on the detrimental effects of misinformation during the COVID-19 pandemic and the urgent need for a collaborative approach to safeguard public health.
The Challenge of Misinformation
Dr. Reimer highlighted the rapid evolution of health misinformation, stating that it can spread far quicker than the truth can be established. “One of the biggest challenges with health misinformation is the speed at which it changes,” she explained. This issue has been exacerbated by the COVID-19 pandemic, during which public trust in health institutions significantly diminished.
She noted the struggles many Canadians faced during the pandemic—loss of jobs, separation from loved ones—and acknowledged that the difficult decisions made by health authorities have had lasting effects. “We have a lot of trust-building that we’re going to need to do, and that’s going to take years,” Reimer stated.
Transitioning Leadership in Public Health
Reimer steps into this critical role following Dr. Theresa Tam, who garnered national recognition for her leadership and consistent updates during the pandemic. Tam retired in June after eight years as Chief Public Health Officer. Reimer, previously the chief medical officer for the Winnipeg health authority, played a significant role in Manitoba’s COVID-19 vaccine rollout and has a deep understanding of public health challenges at a community level.

Health Minister Marjorie Michel remarked on Reimer’s appointment, describing it as timely given the resurgence of vaccine-preventable diseases like measles, as well as ongoing threats from avian influenza, HIV, and tuberculosis. “We are facing a critical moment in public health,” Michel emphasised.
Addressing Vaccine Hesitancy
Reimer’s personal background in a small town affected by the measles outbreak gives her a unique insight into the issue of vaccine hesitancy. She stressed the importance of grassroots partnerships, engaging community leaders alongside federal authorities to foster trust. The recent measles outbreak has led Canada to lose its measles elimination status, a situation that alarms health experts across the nation.
“The rise in measles cases isn’t surprising given how incredibly infectious the disease is, particularly in the current climate of misinformation and vaccine hesitancy,” Reimer asserted.
The Need for Reliable Information
Dr. Reimer’s perspective is particularly relevant in an era where misinformation is not confined to social media platforms. In a previous statement, Minister Michel noted that trust in American health institutions has eroded, especially since the Trump administration took office and reduced funding for many scientific bodies. “Canada needs to stand on its own and ensure we’re sharing trustworthy information,” Reimer stated.

She remains optimistic about collaboration with American health professionals, recognising the valuable work still being done across the border.
Reimer’s qualifications are impressive; she holds a master’s degree in public health and has conducted significant research into sexually transmitted diseases and drug-related harms. Her past role as president of the Canadian Medical Association included issuing a formal apology for the medical profession’s historical harms to Indigenous Peoples, demonstrating her commitment to equity and inclusivity in healthcare.
A Call for Strong Leadership
Nancy Hamzawi, president of the Public Health Agency of Canada, expressed her enthusiasm for collaborating with Reimer, highlighting the critical need for science-driven leadership in these challenging times. “I am confident that her vision and dedication will help advance the public health and well-being of Canadians,” Hamzawi stated.
Dr. Margot Burnell, current president of the Canadian Medical Association, praised Reimer for her calm and effective leadership during the pandemic, noting her advocacy against misinformation and her efforts to improve healthcare access across Canada.
Why it Matters
Dr. Joss Reimer’s appointment as Chief Public Health Officer comes at a pivotal time when misinformation poses a significant threat to public health. Her focus on rebuilding trust and fostering community partnerships is essential for addressing the challenges of vaccine hesitancy and infectious disease outbreaks. As Canada navigates these complex issues, Reimer’s leadership will be crucial in ensuring that health decisions are informed by reliable information and grounded in community engagement, ultimately safeguarding the health of all Canadians.