Dr. Joss Reimer, newly appointed chief public health officer of Canada, has outlined her commitment to combating health misinformation and restoring public trust in health institutions. In an interview following the announcement of her three-year term, Reimer underscored the urgent need for proactive measures to counteract the swift spread of false information, particularly in the wake of the COVID-19 pandemic, which has severely tested Canadians’ faith in public health messaging.
Rebuilding Trust Post-Pandemic
Reimer, a native of Manitoba, reflected on the erosion of trust experienced during the pandemic, stating that the challenges faced by Canadians, including job losses and separation from loved ones, created a significant divide between the public and health authorities. “We have a lot of trust-building that we’re going to need to do that’s going to take years,” she remarked, acknowledging the extensive work ahead to reconnect with the communities that felt let down.
The pandemic thrust public health officials into the limelight, with Dr. Theresa Tam, Reimer’s predecessor, becoming a familiar face as she provided frequent updates. Tam’s retirement in June marked the end of an era, and now Reimer is stepping into a role that demands not just expertise but also the ability to communicate effectively with a wary public.
Addressing Vaccine Hesitancy and Disease Resurgence
Health Minister Marjorie Michel emphasised the importance of Reimer’s appointment, noting that Canada is currently grappling with a resurgence of vaccine-preventable diseases, including measles. “We are facing threats from avian influenza A (H5N1), HIV, tuberculosis, and the ongoing impacts of the illegal drug crisis, compounded by the harmful effects of misinformation,” Michel stated.

Reimer’s unique background, which includes serving as the chief medical officer for the Winnipeg health authority and leading Manitoba’s COVID-19 vaccination task force, equips her with valuable insights into the current health landscape. She expressed particular concern over the measles outbreak, acknowledging her roots in a small town affected by vaccine hesitancy. “We need partnerships from community leaders all the way up to the federal government,” she asserted, highlighting the necessity of collaboration across all levels of society.
The Challenge of Misinformation
The issue of health misinformation is not confined to social media; it permeates various channels, affecting public perceptions and behaviours. Reimer noted that the COVID-19 pandemic has exacerbated this issue, making it crucial for Canada to establish its own reliable sources of information. “I know there are still amazing people in the American system doing wonderful work, and I think there are ways we can continue to work together,” she acknowledged, while also stressing the need for Canada to ensure that its citizens receive trustworthy information.
Canada’s loss of measles elimination status, a designation held since 1998, serves as a stark reminder of the consequences of misinformation and vaccine hesitancy, with experts sounding alarms about the implications for public health. As Reimer takes on her new responsibilities, the path ahead will require not only scientific acumen but also a keen understanding of communication strategies that resonate with the public.
A Collaborator in Public Health
Nancy Hamzawi, president of the Public Health Agency of Canada, expressed confidence in Reimer’s ability to lead during this critical time. “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,” Hamzawi stated.

Reimer’s extensive experience, including her role as past president of the Canadian Medical Association, where she publicly apologised for the medical community’s historical harms to Indigenous Peoples, positions her as a compassionate leader who understands the complexities of public health dynamics.
Why it Matters
The appointment of Dr. Joss Reimer as Canada’s chief public health officer comes at a pivotal moment for the nation’s health landscape. With rising vaccine-preventable diseases and a populace grappling with misinformation, her focus on rebuilding trust and disseminating accurate health information is essential. As she embarks on this journey, the strategies she implements will be crucial not only for addressing current health crises but also for fostering a more resilient public health framework for the future.