**
Canada has announced the appointment of Dr. Joss Reimer as the new Chief Public Health Officer, a role she will assume on April 1. Reimer, who has previously served as the Chief Medical Officer for the Winnipeg health authority, steps into this critical position at a time when public trust in health institutions is precarious, and misinformation about health issues is rampant.
Prioritising the Fight Against Misinformation
In an interview following the announcement, Dr. Reimer emphasised the urgent need for the federal government to actively combat the spread of health misinformation. “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 stated. This insight underscores the fluid nature of misinformation, which can quickly undermine public health efforts.
Reimer acknowledged that the COVID-19 pandemic significantly eroded trust in health institutions, a sentiment echoed by many public health officials. “There were so many difficulties during the pandemic—people lost jobs, faced financial insecurity, and experienced separation from loved ones. Regardless of whether those decisions were justified, they were painful,” she noted. “Restoring that trust is going to take years and will require a concerted effort.”
A Legacy of Leadership in Public Health
Reimer succeeds Dr. Theresa Tam, who retired in June after an eight-year tenure that made her a household name across Canada. Tam provided near-daily updates during the pandemic, guiding Canadians through a tumultuous period of shifting health guidelines and data. Reimer has her own experience in navigating public health challenges, having served on Manitoba’s COVID-19 vaccine implementation task force.

Her background gives her a unique perspective on current public health issues, including a recent outbreak of measles in her home community, which highlights the ongoing challenge of vaccine hesitancy. “We need to foster partnerships from community leaders to the federal government to address these issues effectively,” she stated.
Addressing the Resurgence of Vaccine-Preventable Diseases
Health Minister Marjorie Michel highlighted the precarious state of public health in Canada, noting the resurgence of vaccine-preventable diseases, including measles, as well as the ongoing threats posed by avian influenza A (H5N1), HIV, and tuberculosis. “We are also grappling with the harmful impacts of false health information,” she added.
Reimer pointed out that Canada has lost its measles elimination status, which had been held since 1998. Public health experts across the country are alarmed by this development, which they believe is linked to increasing vaccine hesitancy fuelled by misinformation. “Measles is incredibly infectious, and it’s not surprising that cases are rising, particularly in an environment where misinformation is prevalent,” she remarked.
The Role of Reliable Information in Public Health
The spread of misinformation is not confined to social media; it permeates various information channels, complicating public health efforts. Reimer noted concerns regarding the reliability of American health institutions, especially following significant funding cuts and the dissemination of false narratives about vaccines during the Trump administration. “Canada must ensure it shares trustworthy information independently,” she asserted. “While there are still dedicated professionals in the American system, we need to be vigilant and proactive in our communications.”

Reimer holds a master’s degree in public health and has a history of research focused on sexually transmitted diseases and drug-related harms. Her extensive background equips her with the skills necessary to tackle the multifaceted challenges that lie ahead.
Why it Matters
Dr. Joss Reimer’s appointment as Chief Public Health Officer comes at a crucial juncture for Canada, where the interplay of misinformation and public health has never been more significant. As she embarks on this new chapter, the responsibility to rebuild trust in health institutions and confront the challenges posed by misinformation is immense. Her leadership will not only shape public health policy but could also set a precedent for how Canada addresses health crises in the future. Reimer’s efforts could be pivotal in restoring public confidence and ensuring that accurate health information prevails in an increasingly complex landscape.