Canada is on the brink of losing its "measles-free" status, a title it held for over two decades. The country's vaccination rates have plummeted, leaving thousands of people vulnerable to the highly contagious disease.
According to the Pan American Health Organization, Canada's measles-free designation was revoked after a year of sustained outbreaks. The US is also at risk of losing its measles-free status, with both countries experiencing large and widespread outbreaks in recent months.
Measles is one of the most contagious diseases on the planet, with the potential to spread rapidly through unvaccinated populations. Despite the availability of a safe and effective vaccine, nearly 2 million children still die from measles each year, mostly in low-income countries where access to vaccination is limited.
Canada's decline began with a sharp drop in childhood vaccination rates, from 90% in 2019 to just 82% in 2022. As the number of unvaccinated people grew, so did the risk of outbreaks. In 2024, Canada reported over 100 cases of measles, and by 2025, that number had skyrocketed to over 5,000.
The situation is not unique to Canada; the US has also seen a surge in measles cases, with more than 1,600 people infected across 40 states. The outbreaks are largely driven by low vaccination rates, with fewer than 10% of those who contracted the disease having received the measles vaccine.
The loss of measles-free status is a symptom of a deeper issue: declining trust in public health messaging and decreasing vaccination rates. Without significant improvements in vaccination coverage and public trust, many countries face an increased risk of more and bigger outbreaks of measles and other vaccine-preventable diseases in the coming years.
As global health epidemiologist Kathryn H. Jacobsen notes, the resurgence of measles is a warning sign for the broader impact of declining vaccination rates on public health. It highlights the need for renewed efforts to promote vaccination and build trust in community health measures.
According to the Pan American Health Organization, Canada's measles-free designation was revoked after a year of sustained outbreaks. The US is also at risk of losing its measles-free status, with both countries experiencing large and widespread outbreaks in recent months.
Measles is one of the most contagious diseases on the planet, with the potential to spread rapidly through unvaccinated populations. Despite the availability of a safe and effective vaccine, nearly 2 million children still die from measles each year, mostly in low-income countries where access to vaccination is limited.
Canada's decline began with a sharp drop in childhood vaccination rates, from 90% in 2019 to just 82% in 2022. As the number of unvaccinated people grew, so did the risk of outbreaks. In 2024, Canada reported over 100 cases of measles, and by 2025, that number had skyrocketed to over 5,000.
The situation is not unique to Canada; the US has also seen a surge in measles cases, with more than 1,600 people infected across 40 states. The outbreaks are largely driven by low vaccination rates, with fewer than 10% of those who contracted the disease having received the measles vaccine.
The loss of measles-free status is a symptom of a deeper issue: declining trust in public health messaging and decreasing vaccination rates. Without significant improvements in vaccination coverage and public trust, many countries face an increased risk of more and bigger outbreaks of measles and other vaccine-preventable diseases in the coming years.
As global health epidemiologist Kathryn H. Jacobsen notes, the resurgence of measles is a warning sign for the broader impact of declining vaccination rates on public health. It highlights the need for renewed efforts to promote vaccination and build trust in community health measures.