In a significant announcement, Dr. Joss Reimer has been appointed as Canada’s new Chief Public Health Officer, with a clear mandate to address health misinformation and rebuild public trust in healthcare institutions. Speaking in an interview shortly after her appointment was revealed, Dr. Reimer, who hails from Manitoba, stressed the urgent need for the federal government to adopt proactive strategies to counteract the pervasive spread of false health information.
Acknowledging the Challenges of Misinformation
Dr. Reimer highlighted the dynamic nature of health misinformation, noting, “One of the biggest challenges with health misinformation is the speed at which it changes, because it doesn’t take a lot of time to come up with a lie.” She recognised that the COVID-19 pandemic significantly eroded trust in health authorities, with many Canadians experiencing job losses and social isolation as a result of the public health measures implemented during this period. “We have a lot of trust-building that we’re going to need to do that’s going to take years,” she added.
The pandemic thrust public health officials into the national spotlight, with Dr. Theresa Tam, Reimer’s predecessor, becoming a household name as she provided daily updates to guide Canadians amidst a rapidly evolving health crisis. Following Tam’s retirement in June 2023 after eight years in office, Dr. Reimer steps into the role at a time of heightened scrutiny and expectation.
Unique Insights from Experience
Dr. Reimer’s experience during the pandemic as Chief Medical Officer for the Winnipeg health authority and as the medical lead for Manitoba’s COVID-19 vaccine implementation task force positions her well to tackle the current health landscape. Health Minister Marjorie Michel remarked on the critical timing of Reimer’s appointment, as the country faces a resurgence of vaccine-preventable diseases, including measles, alongside ongoing challenges posed by avian influenza A (H5N1), HIV, tuberculosis, and the illegal drug crisis.

Reimer shared her personal connection to the current measles outbreak, highlighting her roots in a small town that has been significantly impacted by vaccine hesitancy. “We need to have partnerships from on the ground, from community leaders all the way up to the federal government,” she emphasised, acknowledging the collaborative efforts necessary for effective public health responses.
The Importance of Trustworthy Information
The loss of Canada’s measles elimination status, which had been maintained since 1998, calls for urgent action. Public health experts have voiced their concerns over this alarming development, which has also threatened the elimination statuses of the United States and Mexico.
Dr. Reimer explained that the rise in measles cases is not surprising given the disease’s high infectiousness and the increasing prevalence of misinformation. Health officials have warned that misinformation extends beyond social media, with statements made by past U.S. administrations affecting the credibility of health institutions. Minister Michel pointed out that the Trump administration’s funding cuts and promotion of falsehoods about vaccines have altered the relationship between Canadian and American health data sources.
Dr. Reimer noted the importance of Canada establishing its own reliable health information channels. “I know that there are still really amazing people in the American system doing wonderful work, and so I think that there’s a lot of ways that we can continue to work together,” she stated, recognising the potential for collaboration while emphasising the need for Canadian independence in health messaging.
A Vision for the Future
Educated with a Master’s degree in Public Health, Reimer has conducted research on sexually transmitted diseases and drug-related harms, equipping her with a diverse knowledge base to guide her in this new role. Nancy Hamzawi, President of the Public Health Agency of Canada, expressed her confidence in Reimer’s ability to provide strong, science-driven leadership at a pivotal moment for public health in Canada.

Dr. Margot Burnell, current president of the Canadian Medical Association, praised Reimer’s calm and measured leadership during the pandemic, stating that she was instrumental in fighting misinformation and advocating for improved access to care for all Canadians.
Dr. Reimer’s term officially begins on April 1, marking the start of what is expected to be a transformative era for Canada’s public health framework.
Why it Matters
Dr. Joss Reimer’s appointment comes at a crucial juncture for Canadian public health. As misinformation continues to proliferate and trust in health institutions wanes, her leadership will be vital in restoring public confidence and ensuring the population has access to accurate health information. By prioritising community engagement and transparency, Dr. Reimer may not only combat the immediate challenges posed by vaccine hesitancy and misinformation but also foster a stronger, healthier society in the long term. Her work will be crucial in shaping the future of public health in Canada, making it imperative to monitor her initiatives closely as they unfold.