Dr. Joss Reimer, Canada’s newly appointed chief public health officer, has identified the fight against health misinformation and the restoration of public trust as her primary objectives. Announced on Friday, Reimer’s three-year term comes at a pivotal moment for the nation, as it grapples with the aftershocks of the COVID-19 pandemic and a resurgence of vaccine-preventable diseases.
Addressing the Challenge of Misinformation
In her first interview following the announcement, Reimer underscored the pressing need for the federal government to proactively counter the spread of false information. “One of the biggest challenges with health misinformation is the speed at which it evolves; it doesn’t take long for a lie to circulate,” she remarked. This rapid dissemination of misinformation has contributed to a significant erosion of trust in health institutions, a trend exacerbated during the pandemic.
Reimer reflected on the tumultuous period, stating, “People were losing jobs and income, and many were separated from loved ones. Regardless of whether the decisions made were justified, the consequences were difficult for many.” She emphasised that restoring trust will require a long-term commitment, acknowledging the extensive efforts needed to rebuild confidence over the coming years.
Acknowledging Past Leadership and Future Responsibilities
The COVID-19 pandemic thrust public health officials into the limelight, with Reimer’s predecessor, Dr. Theresa Tam, becoming a familiar figure as she provided near-daily updates to Canadians navigating the shifting landscape of public health guidance. Tam stepped down in June after serving in the role for eight years.

Reimer, who served as the chief medical officer for the Winnipeg health authority during the pandemic, played a crucial role in Manitoba’s COVID-19 vaccine implementation task force. Her firsthand experience positions her well to address current health challenges.
Health Minister Marjorie Michel highlighted the importance of Reimer’s appointment, stating that Canada is facing a resurgence of diseases that could have been prevented by vaccines, including measles, as well as ongoing threats from avian influenza A (H5N1), HIV, and tuberculosis.
Measles Outbreak and Vaccine Hesitancy
Reimer brings a unique perspective on the current measles outbreak, which has seen Canada lose its measles elimination status for the first time since 1998. “I come from a small town that is part of the measles outbreak and where we have observed significant vaccine hesitancy,” she explained. She called for collaborative efforts involving community leaders and federal authorities to address this growing concern.
The alarming rise in measles cases can be attributed to the disease’s highly infectious nature, exacerbated by rampant misinformation and a marked increase in vaccine hesitancy. Reimer’s insights align with public health experts’ warnings about the serious implications of declining vaccination rates across the country.
Ensuring Reliable Health Information
Concerns about misinformation extend beyond social media platforms. In a previous statement, Minister Michel noted that Canadian health institutions can no longer wholly rely on American counterparts for accurate health information, especially following the Trump administration’s cuts to research funding and promotion of vaccine misinformation.

Reimer emphasised that Canada must establish its independent, reliable sources of health information. “While there are still many dedicated professionals in the American system, we need to ensure our information is trustworthy and actionable,” she stated.
Reimer’s impressive credentials include a master’s degree in public health, along with significant research on sexually transmitted diseases and drug-related harm. Nancy Hamzawi, president of the Public Health Agency of Canada, expressed confidence in Reimer’s ability to lead, 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 Equity and Access
As a former president of the Canadian Medical Association, Reimer has been an advocate for equity in healthcare access. During her tenure, she made headlines by delivering a formal apology to Indigenous Peoples for the medical profession’s historical harms. Current CMA President Dr. Margot Burnell praised Reimer’s compassionate leadership during the pandemic, noting her commitment to combating misinformation and improving healthcare access for all Canadians.
Reimer is set to officially begin her term on April 1, and her leadership will be pivotal in navigating the current health landscape.
Why it Matters
Dr. Joss Reimer’s appointment as chief public health officer is not merely a change in leadership; it represents a critical opportunity for Canada to address the intertwined challenges of health misinformation and public trust. As the nation faces a resurgence of preventable diseases and seeks to recover from the pandemic’s impact, Reimer’s approach will be instrumental in shaping the future of public health in Canada. Her commitment to evidence-based strategies and community engagement could forge a path towards a healthier, more informed society, highlighting the urgent need for reliable information in today’s ever-evolving health landscape.