Dr. Joss Reimer, appointed as Canada’s chief public health officer, has set her sights on tackling health misinformation and rebuilding public trust in health institutions. Announced on Friday, her three-year term is set to begin on April 1, 2024. In her first interview following the announcement, Reimer highlighted the urgent need for a proactive governmental response to the rapidly changing landscape of health misinformation.
Addressing the Misinformation Challenge
Reimer, hailing from Manitoba, acknowledged the significant challenge posed by false health information, particularly as it spreads swiftly and often without consequence. “One of the biggest challenges with health misinformation is the speed at which it changes,” she remarked. The COVID-19 pandemic, she noted, severely eroded public trust in health institutions. “People faced immense hardships—loss of jobs, separation from loved ones. Whether the decisions made were right or wrong, it was a difficult time,” she said, emphasising the prolonged effort required to rebuild trust in public health messaging.
During the pandemic, public health officials became household names, with Dr. Theresa Tam, Reimer’s predecessor, leading the charge with regular updates that kept Canadians informed. After eight years, Tam retired in June, leaving a significant legacy and a daunting task for her successor.
A Critical Time for Public Health
Health Minister Marjorie Michel recognised the critical juncture at which Reimer steps into her new role. Canada is currently grappling with a resurgence of vaccine-preventable diseases, such as measles, as well as threats from avian influenza A (H5N1), HIV, and tuberculosis. Additionally, the ongoing opioid crisis and the detrimental impact of false health information pose significant challenges. “We need to work collaboratively, from community leaders up to the federal level, to address vaccine hesitancy and misinformation,” Reimer stated, reflecting on her experience during the measles outbreak in her hometown.

The resurgence of measles is particularly alarming, as Canada recently lost its elimination status for the disease, a position it had maintained since 1998. Public health experts are sounding the alarm, noting that increasing misinformation and vaccine hesitancy are likely to blame. “Measles is incredibly infectious, and the rise in cases is not surprising given the current climate,” Reimer explained.
The Role of Trust in Health Outcomes
Reimer’s experience as chief medical officer for the Winnipeg health authority and her leadership in Manitoba’s COVID-19 vaccination task force equip her with a unique perspective on the challenges ahead. She stressed the importance of ensuring that the information shared with Canadians is reliable and trustworthy. “Canada needs to stand on its own in the face of misinformation and share accurate health information,” she affirmed, acknowledging the need for collaboration with American health professionals who continue to do commendable work.
With a master’s degree in public health and a history of researching sexually transmitted infections and drug-related harms, Reimer is well-prepared for her new role. 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.”
Reimer’s Commitment to Inclusivity
Reimer’s commitment to addressing health disparities is evident from her previous role as president of the Canadian Medical Association, where she delivered a formal apology to Indigenous Peoples for the medical profession’s past harms. Current CMA president, Dr. Margot Burnell, praised Reimer for her calm and measured leadership during the pandemic. “She led the fight against false health information and advocated strongly for solutions to improve access to care for everyone in Canada,” Burnell noted.

As Dr. Joss Reimer prepares to take the helm of Canada’s public health strategy, her focus on combating misinformation and rebuilding trust is crucial in a landscape increasingly characterised by doubt and division.
Why it Matters
The appointment of Dr. Reimer as chief public health officer comes at a pivotal moment for Canadian health policy. With rising vaccine hesitancy and the threat of preventable diseases looming, her leadership will be instrumental in fostering a culture of trust and transparency. The efforts to combat misinformation are not merely about public health; they are about safeguarding the well-being of communities and ensuring that all Canadians have access to accurate health information. Reimer’s proactive approach is essential to reversing the trends that have compromised public trust and health outcomes in recent years.