In a pivotal moment for public health in Canada, Dr. Joss Reimer has been appointed as the new chief public health officer, succeeding Dr. Theresa Tam. As she prepares to take on this vital role starting April 1, Reimer emphasised the urgent need to combat health misinformation and rebuild public confidence, particularly in the wake of the COVID-19 pandemic.
Addressing the Misinformation Crisis
During a recent interview, Dr. Reimer highlighted the challenges posed by the rapid spread of health misinformation. “One of the biggest challenges with health misinformation is the speed at which it changes,” she stated. “It doesn’t take a lot of time to come up with a lie.” This acknowledgement comes at a time when public trust in health institutions has significantly waned, largely due to the pandemic’s turbulence.
Reimer reflected on the difficulties faced by Canadians during that period, noting, “People were losing jobs and income, and were separated from loved ones. Whether or not those were right decisions, it was hard.” She recognises the monumental task ahead: “We have a lot of trust-building that we’re going to need to do that’s going to take years.”
The Legacy of Dr. Tam
Dr. Reimer takes the helm at a time when public health officials have emerged as critical figures in Canadian society. Her predecessor, Dr. Theresa Tam, became a household name through her daily updates and guidance during the pandemic. After eight years of dedicated service, Tam retired in June, leaving behind a legacy of resilience and adaptability that Reimer aims to build upon.

Reimer’s experience as Manitoba’s chief medical officer and her role in the COVID-19 vaccine task force have equipped her with a comprehensive understanding of public health challenges. “My experience during the pandemic showed me the importance of clear and consistent communication,” she remarked.
Confronting Vaccine Hesitancy
Health Minister Marjorie Michel underscored the significance of Reimer’s appointment amid rising concerns over vaccine-preventable diseases, including measles. “Canada is facing a resurgence of vaccine-preventable diseases such as measles, the threats posed by avian influenza A (H5N1), HIV and tuberculosis,” she cautioned.
Dr. Reimer’s personal connection to the measles outbreak—stemming from her roots in a small town experiencing vaccine hesitancy—provides her with a unique perspective. “We need to have partnerships from on the ground, from community leaders all the way up to the federal government,” she stated, advocating for collaborative efforts to restore public confidence in vaccinations.
The alarming fact that Canada has lost its measles elimination status, which it held since 1998, is a pressing concern echoed by public health experts nationwide. The United States and Mexico also face similar risks, highlighting the urgency of Reimer’s mission.
The Need for Reliable Information
As misinformation proliferates, Dr. Reimer emphasised the necessity for Canada to cultivate its own reliable sources of health information. She expressed dismay over the impact of American health policy changes, particularly referencing the erosion of trust in U.S. institutions during the previous administration. “Canada needs to stand on its own and ensure it’s sharing trustworthy information,” she asserted.

Despite the challenges posed by external influences, Reimer remains optimistic about collaboration. “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 noted.
A Vision for the Future
Dr. Reimer holds a master’s degree in public health and has a history of addressing pressing issues such as sexually transmitted diseases and drug-related harms. Her commitment to health equity is further demonstrated by her previous role as president of the Canadian Medical Association, where she apologised to Indigenous Peoples for the medical profession’s historical wrongs.
Nancy Hamzawi, president of the Public Health Agency of Canada, expressed confidence in Reimer’s leadership. “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,” she stated.
Dr. Margot Burnell, the current CMA president, praised Reimer for her calm and measured leadership throughout the pandemic, highlighting her advocacy against misinformation and her efforts to improve access to healthcare.
Why it Matters
Dr. Joss Reimer’s appointment as chief public health officer represents a critical juncture for Canada’s health landscape. In a world increasingly beset by misinformation, the emphasis on rebuilding trust and ensuring access to accurate health information is paramount. As Reimer steps into this role, her leadership will not only influence public health policies but also shape the relationship between Canadians and their healthcare system. In a time when confidence in health authorities is essential, Reimer’s commitment to transparency and collaboration could be the key to navigating the complex challenges ahead.