Dr. Joss Reimer has been appointed as Canada’s new chief public health officer, a role she will officially assume on April 1. In her inaugural interview following the announcement of her three-year tenure, Reimer outlined her commitment to addressing the rampant spread of health misinformation and restoring public confidence in health institutions, a task she deems vital after the erosion of trust witnessed during the COVID-19 pandemic.
A Call to Action Against Misinformation
Reimer emphasised the urgent need for a proactive federal strategy in combating false health narratives. “One of the biggest challenges with health misinformation is the speed at which it changes; it doesn’t take long to fabricate a lie,” she remarked. Her experience as Manitoba’s chief medical officer during the pandemic has shaped her understanding of the critical nature of this issue.
The pandemic exposed significant vulnerabilities in public trust, with Reimer acknowledging that many Canadians experienced hardships, including job losses and separation from loved ones. “We have a lot of trust-building that we’re going to need to do that’s going to take years,” she said, highlighting the long road ahead in restoring credibility to public health communications.
Lessons from the Pandemic
Dr. Theresa Tam, Reimer’s predecessor, became a prominent figure throughout the pandemic, delivering regular updates to a nation keen on navigating the ever-changing landscape of public health advice. Tam, who retired in June after an impactful eight-year tenure, set a high standard for leadership in this crucial field.

Reimer’s own pandemic experience as Manitoba’s chief medical officer and her role in overseeing the province’s COVID-19 vaccination efforts have equipped her with valuable insights. She brings a unique perspective, especially in light of a recent resurgence of vaccine-preventable diseases like measles, an issue she personally witnessed in her hometown.
Addressing Vaccine Hesitancy and Outbreaks
Reimer flagged the consequences of growing vaccine hesitancy as a significant factor in the current measles outbreak, which has led Canada to lose its status as measles-free since 1998. “Measles is incredibly infectious, and the rise in cases aligns with the increase in misinformation and vaccine hesitancy,” she stated.
Health Minister Marjorie Michel reinforced the importance of Reimer’s appointment, stressing that Canada is facing multiple health threats, including avian influenza, HIV, tuberculosis, and the ongoing opioid crisis. “We are at a critical juncture where strong leadership is paramount,” she asserted.
The Need for Trustworthy Information
The challenges posed by misinformation extend beyond social media platforms. In December, Michel expressed concerns about the reliability of American health institutions, attributing this decline to the previous administration’s decisions that undermined scientific credibility.

Reimer recognised the need for Canada to forge its own path, ensuring the dissemination of credible health information. “While there are still remarkable individuals within the American system, Canada must focus on sharing trustworthy information,” she remarked, underscoring the need for independent and reliable public health narratives.
A Vision for the Future
Reimer holds a master’s degree in public health and has conducted extensive research on sexually transmitted diseases and drug-related harms. Nancy Hamzawi, president of the Public Health Agency of Canada, expressed her confidence in Reimer’s ability to lead during this challenging period. “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,” Hamzawi said.
Dr. Margot Burnell, the current president of the Canadian Medical Association, praised Reimer’s calm and measured approach during her tenure in Manitoba. “She led the fight against false health information and advocated strongly for solutions to improve access to care for everyone in Canada,” Burnell noted.
Why it Matters
Reimer’s appointment comes at a pivotal moment for Canada’s public health landscape. With misinformation threatening to undermine decades of progress in vaccination and public health initiatives, her leadership will be crucial in rebuilding trust and ensuring that Canadians receive accurate, reliable health information. As the nation grapples with complex health challenges, Reimer’s commitment to community engagement and evidence-based strategies will be vital in fostering a healthier future for all.