Dr. Joss Reimer has been appointed as Canada’s new chief public health officer, taking over a pivotal role at a time when rebuilding trust and addressing health misinformation are urgent priorities. In a recent interview, Reimer emphasised the necessity for a robust federal strategy to counter the spread of false information, particularly as the nation grapples with rising cases of vaccine-preventable diseases.
A Focus on Misinformation and Trust
Reimer, a native of Manitoba, spoke candidly about the challenges posed by health misinformation, noting the rapidity with which it can proliferate. “One of the biggest challenges with health misinformation is the speed at which it changes,” she explained. “It doesn’t take long for falsehoods to take root.” This issue has only intensified since the COVID-19 pandemic, which, according to Reimer, has significantly eroded public trust in health institutions.
“People experienced tremendous hardships during the pandemic—job losses, separation from loved ones. Regardless of the decisions made, it was a tough time,” she reflected. Reimer acknowledged that restoring trust will be a long-term endeavour, requiring years of dedicated effort.
Learning from the Pandemic Experience
The COVID-19 pandemic thrust public health officials into the limelight, with Reimer’s predecessor, Dr. Theresa Tam, becoming a familiar figure for Canadians navigating the evolving landscape of health guidance. After eight years in the role, Tam retired in June, leaving behind a challenging legacy amid a backdrop of public scrutiny.

Reimer herself played a significant role during the pandemic as the chief medical officer for the Winnipeg health authority and as the lead for Manitoba’s COVID-19 vaccination implementation task force. Her extensive experience has uniquely positioned her to tackle the ongoing public health challenges facing the country.
Addressing Vaccine-Preventable Diseases
Health Minister Marjorie Michel highlighted the critical juncture at which Reimer assumes her role. Canada is currently confronting a resurgence of diseases that can be prevented through vaccination, including measles, alongside threats from avian influenza A (H5N1), HIV, and tuberculosis. The ongoing illegal drug crisis and the pervasive impact of misinformation further complicate the public health landscape.
The measles outbreak, which has caused Canada to lose its elimination status held since 1998, is particularly alarming. Reimer noted, “I come from a small town part of the measles outbreak, where vaccine hesitancy is prevalent. We need to forge partnerships from community leaders to the federal government to effectively address this issue.”
The increase in measles cases is not unexpected, given the disease’s highly infectious nature and the growing tide of misinformation and vaccine hesitancy.
The Need for Reliable Information
Public health officials have underscored that misinformation is not confined to social media platforms, but has permeated various aspects of public discourse. In December, Michel remarked that American health institutions have become less dependable sources of information for Canadians, a situation exacerbated by the previous U.S. administration’s funding cuts to research and scientific bodies.

“We must ensure that Canada stands independently, sharing trustworthy information,” Reimer asserted, acknowledging that while collaboration with American counterparts remains valuable, Canada must prioritise its own health messaging.
A Commitment to Public Health
Reimer holds a master’s degree in public health and has previously researched sexually transmitted infections and drug-related harm. Nancy Hamzawi, president of the Public Health Agency of Canada, expressed confidence in Reimer’s leadership during a time when science-driven guidance is crucial. “Her vision and dedication will help advance the public health and well-being of Canadians,” Hamzawi stated.
As a former president of the Canadian Medical Association, Reimer is well-versed in advocating for access to care and combating health misinformation. Dr. Margot Burnell, the CMA’s current president, praised Reimer’s calm and measured approach during her tenure, highlighting her leadership in addressing false health narratives.
Reimer is set to officially commence her term on April 1, bringing with her a wealth of experience and a clear mandate to restore confidence in public health.
Why it Matters
Dr. Joss Reimer’s appointment comes at a critical time for public health in Canada. As misinformation continues to sow doubt and confusion, her commitment to rebuilding trust and ensuring access to accurate health information will be vital. The health and well-being of Canadians depend on strong, evidence-based leadership that can navigate the complexities of public health in an era marked by rapid change. With Reimer at the helm, there is hope for a more informed and healthier populace, capable of facing the challenges ahead.