Dr. Joss Reimer, Canada’s newly appointed chief public health officer, has set her sights on addressing the rampant issue of health misinformation and restoring public trust in health institutions. Announced on Friday, Reimer’s three-year tenure begins at a pivotal moment, with the nation facing a resurgence of vaccine-preventable diseases and an ongoing public health crisis exacerbated by misinformation.
A Call to Action Against Misinformation
In her first interview following the announcement, Reimer underscored the urgent need for the federal government to adopt a proactive stance in countering misleading health information. “One of the biggest challenges with health misinformation is the speed at which it changes,” she remarked. “It doesn’t take much time to create a lie.” This recognition highlights the complexities public health officials face in providing accurate and timely information to the public.
Reimer, a native of Manitoba, acknowledged a significant decline in public trust towards institutions during the COVID-19 pandemic. “There was a lot of difficulty — people were losing jobs and incomes, and they were being separated from their loved ones. Whether those decisions were right or wrong, it was a hard time for many,” she noted. As a result, she anticipates a long journey ahead in rebuilding that trust, which may take several years.
The Legacy of Dr. Theresa Tam
Reimer steps into her role following Dr. Theresa Tam, who became a prominent figure during the pandemic, providing frequent updates on the evolving situation. Tam served for eight years before retiring in June. Reimer, who previously held the position of chief medical officer for the Winnipeg health authority and led the province’s COVID-19 vaccine task force, is well-prepared to navigate the challenges ahead.

Minister of Health Marjorie Michel highlighted the critical nature of Reimer’s appointment, noting that Canada is confronting a resurgence of diseases such as measles, along with threats from avian influenza A (H5N1), HIV, and tuberculosis. The ongoing impacts of the illegal drug crisis and the pervasive influence of false health information further complicate the public health landscape.
Addressing Vaccine Hesitancy and Measles Outbreaks
Reimer has a personal connection to the current measles outbreak, which has been exacerbated by vaccine hesitancy in her hometown. “We need partnerships from the ground up, from community leaders to the federal government,” she stated, emphasising the importance of collaboration in fostering community trust in vaccines.
The resurgence of measles in Canada has led to the loss of the country’s elimination status, a situation that has raised alarms among public health experts. The highly infectious nature of measles, coupled with increasing misinformation and vaccine hesitancy, underscores the need for robust public health initiatives.
Reimer’s Vision for Public Health
Reimer’s extensive background in public health, including her research on sexually transmitted infections and drug-related harms, positions her uniquely for this role. She expressed the necessity for Canada to ensure it communicates trustworthy information independently, especially as misinformation transcends borders. “I know there are still incredible individuals within the American health system doing remarkable work,” she acknowledged, while emphasising Canada’s need to stand firm in its own public health messaging.

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 for her calm and measured approach during the pandemic, noting her efforts to combat misinformation and improve healthcare access for all Canadians.
Reimer’s official term commences on April 1, and her leadership will be crucial as Canada navigates complex public health challenges.
Why it Matters
The appointment of Dr. Joss Reimer comes at a critical juncture for Canadian public health. With rising vaccine-preventable diseases and increasing distrust in health information, her commitment to counter misinformation and rebuild public confidence is vital. The trajectory of public health in Canada hinges on her ability to foster collaboration across sectors and communicate effectively with the public. Reimer’s role could be pivotal in steering the nation towards a more informed and healthier future, making it imperative that her initiatives receive the support and attention they require.