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International health experts announced on Monday that Canada is not considered measles-free due to continuing virus spread. This situation coincides with childhood vaccination rates decline and the highly contagious virus expands its reach across North and South America.

Case Numbers and Tragic Outcomes

Canada has recorded 5,138 measles cases this year and two deaths. The two individuals were babies who contracted the infection in the womb and delivered early.

Measles elimination is a symbolic designation, but it signifies a hard-won battle against the infectious disease. A country achieves this status when it shows it has stopped ongoing transmission of the virus within local communities, though sporadic infections might still appear from international travel.

Recognizing Measles Symptoms

Measles typically begins with a high fever followed by a characteristic skin eruption that starts on the face and neck. While most people recover, it remains one of the primary reasons of death among young children, according to international health organizations. Severe outcomes, including vision loss and encephalitis, are more common in young children and adults over age 30.

“This is profoundly disappointing news. It’s extremely concerning. And, frankly, it’s an embarrassing development,” said an infectious disease expert, from Brown University public health specialist. “No nation with Canada’s resources – or other countries in North America even – should lose their measles elimination status.”

Historical Context and Immunization Achievements

Canada eliminated measles in 1998, with the US shortly after. After extremely effective vaccination campaigns, the Western Hemisphere became the first region in the world to be free of measles in 2016. Health officials calculate the immunization averted over six million fatalities in the region between 2000 and 2023.

Present Difficulties

But vaccination rates have since slipped below the 95 percent threshold required to stop outbreaks. Large outbreaks in Venezuela and Brazil in 2018 and 2019 cost the region its measles-free designation. It was reclaimed in 2024, but is lost once more with the Canadian situation.

Specialists representing the regional health agency, a public health organization, made the determination after reviewing information on Canada’s outbreaks that demonstrated the virus has spread continuously for a year.

“As a region, we have eliminated measles twice,” stated Dr. Barbosa, head of the regional health organization. “We can accomplish this once again.”

Response Measures

Through an announcement, national health authorities indicated they were collaborating with public and local organizations to improve vaccination coverage, share data and provide evidence-based guidance.

• Increasing vaccination rates
• Improving information exchange
• Providing scientific guidance
• Public involvement
• Official cooperation