Dr. Joss Reimer has been appointed as Canada’s new Chief Public Health Officer, taking on a pivotal role in addressing the rampant health misinformation that has emerged in recent years. In her first interview following the announcement of her three-year term, Reimer emphasised the urgency of rebuilding public trust in healthcare institutions, which has suffered significantly during the COVID-19 pandemic.
A Focus on Misinformation
Reimer, who hails from Manitoba, underscored the challenges posed by the swift spread of false health information. “One of the biggest challenges with health misinformation is the speed at which it changes,” she stated. “It doesn’t take a lot of time to come up with a lie.” This rapid dissemination of inaccuracies has made it increasingly difficult for the public to discern reliable information from misleading claims, particularly in the context of vaccination and disease prevention.
The pandemic highlighted the fragility of public trust in health authorities. Reimer acknowledged the hardships faced by Canadians, including job losses and social isolation, which have contributed to a growing scepticism towards institutions. “We have a lot of trust-building to do, and that’s going to take years,” she remarked, emphasising the need for a concerted effort to mend these fractures.
Addressing Vaccine Hesitancy
An alarming uptick in vaccine-preventable diseases, particularly measles, has also been a pressing concern. With Canada losing its measles elimination status, Reimer highlighted her personal connection to the issue, having witnessed vaccine hesitancy firsthand in her hometown. “We need to have partnerships from on the ground, from community leaders all the way up to the federal government,” she insisted.

Health Minister Marjorie Michel noted the critical timing of Reimer’s appointment, as Canada grapples with the resurgence of diseases like measles alongside ongoing threats from HIV, tuberculosis, and the illegal drug crisis. “We must confront the harmful impacts of false health information head-on,” she stated.
Collaborative Efforts for Better Health
Reimer’s experience as the chief medical officer for the Winnipeg health authority and her role in leading Manitoba’s COVID-19 vaccine implementation task force will be invaluable as she steps into her new position. She is keenly aware that misinformation is not confined to social media; it permeates various channels, making it essential for Canada to establish its own reliable sources of information.
“I know that there are still really amazing people in the American system doing wonderful work,” Reimer acknowledged, referring to the challenges of relying on U.S. health information after significant cuts to research funding during the Trump administration. “We need to ensure that we’re sharing trustworthy information from Canada.”
Leadership and Vision
The Public Health Agency of Canada’s president, Nancy Hamzawi, expressed optimism about Reimer’s leadership, stating that “strong, science-driven leadership has never been more important.” Reimer’s previous role as president of the Canadian Medical Association showcased her commitment to addressing false health information and advocating for improved access to healthcare for all Canadians.

Dr. Margot Burnell, the current president of the Canadian Medical Association, praised Reimer as a calming force during the pandemic and highlighted her leadership in combating misinformation. As Reimer prepares to assume her role on April 1, she brings a wealth of knowledge and experience to a position that is critical for the future of public health in Canada.
Why it Matters
Dr. Joss Reimer’s appointment is a significant step toward restoring public confidence in Canada’s healthcare system. As misinformation threatens to undermine the progress made in public health, her commitment to transparency and collaboration will be vital. By prioritising the rebuilding of trust and ensuring the dissemination of accurate health information, Reimer has the potential to not only address the current public health crises but also to lay a foundation for a healthier, more informed society in the years to come.