Dr. Joss Reimer, recently appointed as Canada’s chief public health officer, has outlined her commitment to addressing health misinformation and rebuilding public confidence in health institutions. Her three-year term, announced last Friday, arrives at a crucial juncture as Canada grapples with rising vaccine-preventable diseases and the fallout from the COVID-19 pandemic.
A Proactive Approach to Misinformation
In her first interview since the announcement, Dr. Reimer emphasised the urgent need for the federal government to tackle the rapid spread of health misinformation. “One of the biggest challenges with health misinformation is the speed at which it changes,” she remarked, recognising the ease with which false narratives can proliferate. She noted that the erosion of trust in health institutions during the pandemic has left a lasting impact. “People faced significant hardships—job losses, separation from loved ones. Whether or not those decisions were justified, the effects were profound,” she stated. “Rebuilding that trust will be a long process, and it’s vital we start now.”
Lessons from the Pandemic
Dr. Reimer’s predecessor, Dr. Theresa Tam, became a familiar figure during the pandemic, providing regular updates on evolving public health guidance. Following Dr. Tam’s retirement in June after eight years in the role, Dr. Reimer steps into a position that demands both leadership and innovation. Her experience as the chief medical officer for the Winnipeg health authority, along with her involvement in Manitoba’s COVID-19 vaccine rollout, positions her well to navigate the challenges ahead.

Health Minister Marjorie Michel acknowledged the importance of Dr. Reimer’s appointment, particularly as Canada faces a resurgence of diseases such as measles, avian influenza A (H5N1), HIV, and tuberculosis. “The ongoing impacts of the illegal drug crisis and the spread of misinformation present significant challenges,” she added.
Addressing Vaccine Hesitancy
Dr. Reimer brings a unique perspective to the current measles outbreak, having grown up in a small town that has been directly affected by vaccine hesitancy. “We need to forge partnerships from community leaders to the federal government,” she said, highlighting the importance of local engagement in public health efforts. The measles outbreak has already resulted in Canada losing its measles elimination status, which it had maintained since 1998—a concerning development echoed by public health experts nationwide.
The chief public health officer warned that the highly contagious nature of measles, combined with the growing prevalence of misinformation, has contributed to this alarming trend. “It’s not surprising that we’re seeing more cases,” she remarked.
The Importance of Reliable Information
Misinformation is not confined to social media; it has permeated various channels, leading to significant concerns about the accuracy of health information available to Canadians. In December, Minister Michel expressed that the trustworthiness of American health institutions had deteriorated, particularly following decisions made during the Trump administration that undermined funding and scientific integrity. Dr. Reimer echoed this sentiment, stating, “Canada must ensure it shares accurate and trustworthy information.”

With a master’s degree in public health, Dr. Reimer has extensive experience in addressing public health issues, including sexually transmitted diseases and drug-related harms. Nancy Hamzawi, president of the Public Health Agency of Canada, expressed confidence in Dr. 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.”
Dr. Reimer previously served as president of the Canadian Medical Association, where she made headlines by formally apologising to Indigenous Peoples for the historical harms caused by the medical profession. Current CMA president Dr. Margot Burnell praised Dr. Reimer’s calm and measured approach during the pandemic and her commitment to combating misinformation.
Why it Matters
Dr. Joss Reimer’s appointment comes at a pivotal moment for Canada’s public health landscape. With rising cases of vaccine-preventable diseases and a pervasive environment of misinformation, her proactive stance and commitment to rebuilding trust are essential. As the nation seeks to recover from the disruptions of the pandemic, Dr. Reimer’s leadership will be crucial in fostering a healthier, more informed populace. The health of Canadians depends not only on addressing current crises but also on ensuring that accurate, reliable health information is accessible and trusted by all.