The Pan American Health Organization says Canada has the highest number of measles cases on the continent and more action is needed to address low vaccination rates.

The regional agency within the World Health Organization, which covers North and South America, says there has been an exponential rise in measles this year.

As of Aug. 8, it recorded 10,139 confirmed measles cases across ten countries, representing a 33-fold increase compared to the same period in 2024, when there were 311 cases.

Canada leads the pack with 4,548 measles cases, particularly in Alberta, British Columbia, Manitoba and Ontario.

PAHO says low vaccination rates are primarily to blame, with U.S. and Mexico also seeing large outbreaks over the past year.

Alberta mother of 4-month-old with measles calls on Cana

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