Dr. Joss Reimer has been appointed as Canada’s new chief public health officer, with a clear mandate to address the pressing issues of health misinformation and the re-establishment of public trust in health authorities. In an interview conducted shortly after her appointment was announced, the Manitoba-born Reimer emphasised the necessity for a proactive federal strategy to counteract the rapid spread of false information, which she views as a significant challenge in today’s information landscape.
Addressing the Misinformation Crisis
“The speed at which health misinformation evolves is alarming,” Reimer noted. “It doesn’t take much time to fabricate a lie, and that’s a major hurdle we face.” She acknowledged the erosion of public trust in health institutions, a sentiment exacerbated during the COVID-19 pandemic. Reimer reflected on the difficulties people faced during this time, including job losses and separation from loved ones. “Whether the decisions made were right or wrong, it was a tough period, and rebuilding trust will take years,” she stated.
Her predecessor, Dr. Theresa Tam, became a well-known figure during the pandemic as she provided regular updates to the public. Tam retired in June after eight years in the role, leaving Reimer to navigate the complexities of a post-pandemic public health landscape.
A Unique Perspective on Vaccine Hesitancy
Reimer brings a distinct perspective to her new role, having served as Manitoba’s chief medical officer and as the medical lead for the province’s COVID-19 vaccination task force. In light of the ongoing measles outbreak, which has resulted in Canada losing its measles elimination status for the first time since 1998, Reimer highlighted the importance of community partnerships in addressing vaccine hesitancy.

“I come from a small town affected by the measles outbreak, and we need collaboration from local community leaders to the federal government to combat this issue,” she explained. The resurgence of measles, a highly contagious disease, poses a serious threat, particularly in an environment rife with misinformation and growing vaccine hesitancy.
The Broader Public Health Landscape
Health Minister Marjorie Michel stated that Reimer steps into her role at a critical juncture for Canadian public health. “We are witnessing a resurgence of vaccine-preventable diseases like measles, alongside threats from avian influenza A (H5N1), HIV, and tuberculosis,” she commented. “Additionally, the ongoing impacts of the illegal drug crisis and the detrimental effects of misinformation further complicate the landscape.”
Reimer also pointed out that misinformation extends beyond social media. In a previous statement, Minister Michel indicated that American health institutions have become less reliable sources of information for Canadians due to political shifts and funding cuts during the Trump administration. “Canada needs to assert its independence and ensure it is disseminating credible, trustworthy information,” Reimer said.
Commitment to Science-Driven Leadership
Reimer holds a master’s degree in public health and has conducted research focused on sexually transmitted diseases and drug-related harms. Nancy Hamzawi, president of the Public Health Agency of Canada, expressed confidence in Reimer’s abilities, stating, “At a time when strong, science-driven leadership has never been more critical, I believe her vision and commitment will enhance the public health and well-being of Canadians.”

Dr. Margot Burnell, current president of the Canadian Medical Association, commended Reimer for her calm and steady leadership during the pandemic. At the CMA, Reimer was a vocal advocate against health misinformation and worked tirelessly to improve healthcare access for all Canadians. Her term as chief public health officer is set to commence on April 1.
Why it Matters
The appointment of Dr. Joss Reimer comes at a time when trust in public health systems is precarious, particularly following the challenges posed by the COVID-19 pandemic. Misinformation has the potential to undermine health initiatives and public compliance with health guidelines. Reimer’s proactive approach to countering false narratives and rebuilding trust is essential not only for managing current public health crises but also for fortifying the resilience of Canada’s healthcare system against future challenges. As she embarks on her new role, the success of her strategies will be pivotal in shaping the future of public health communication and community engagement across the nation.