Canada's measles-free status has been revoked due to a significant increase in cases nationwide, with over 5,000 reported infections in 2025. This move is expected to be followed by the US, which will also likely lose its designation soon.
The decision comes as no surprise, given the highly contagious nature of the disease and the decline in childhood vaccination rates in Canada. The country's measles-free status was previously confirmed in 1998, but a drop in vaccination rates has led to a resurgence of cases, with over 100 infections reported between 2020 and 2023.
The US is also facing a similar situation, with large outbreaks reported this year and likely to lose its measles-free designation soon. Despite having high vaccination rates, the country's measles-free status will be revoked due to sustained outbreaks since early 2025.
The loss of these designations serves as a symptom of a deeper issue - declining trust in public health messaging about science and health, which has led to decreased vaccination rates and growing vulnerability to vaccine-preventable diseases. The World Health Organization's labels for disease control, including "controlled", "eliminated", and "eradicated", are also under threat.
Measles is one of the most contagious diseases globally, with nearly every child getting infected before the introduction of the measles vaccine in 1963. The vaccine has significantly reduced cases, but the World Health Organization notes that almost all of the remaining deaths occur in low-income countries where access to vaccines is limited.
To achieve and maintain measles elimination status, a country must have no ongoing local transmission for at least one year. However, with vaccination rates dropping globally, outbreaks will soon start happening, posing a significant risk to communities.
The situation highlights the need for improved public trust in community health measures and increased vaccination coverage to prevent further outbreaks of measles and other vaccine-preventable diseases.
The decision comes as no surprise, given the highly contagious nature of the disease and the decline in childhood vaccination rates in Canada. The country's measles-free status was previously confirmed in 1998, but a drop in vaccination rates has led to a resurgence of cases, with over 100 infections reported between 2020 and 2023.
The US is also facing a similar situation, with large outbreaks reported this year and likely to lose its measles-free designation soon. Despite having high vaccination rates, the country's measles-free status will be revoked due to sustained outbreaks since early 2025.
The loss of these designations serves as a symptom of a deeper issue - declining trust in public health messaging about science and health, which has led to decreased vaccination rates and growing vulnerability to vaccine-preventable diseases. The World Health Organization's labels for disease control, including "controlled", "eliminated", and "eradicated", are also under threat.
Measles is one of the most contagious diseases globally, with nearly every child getting infected before the introduction of the measles vaccine in 1963. The vaccine has significantly reduced cases, but the World Health Organization notes that almost all of the remaining deaths occur in low-income countries where access to vaccines is limited.
To achieve and maintain measles elimination status, a country must have no ongoing local transmission for at least one year. However, with vaccination rates dropping globally, outbreaks will soon start happening, posing a significant risk to communities.
The situation highlights the need for improved public trust in community health measures and increased vaccination coverage to prevent further outbreaks of measles and other vaccine-preventable diseases.