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5d ago

Canada Faces Worst Measles Outbreak in Decades as Alberta Cases Surge

The national case count reaches 880, with Alberta reporting a sharp increase to 118 cases and Quebec declaring its outbreak over after 32 days without new infections.

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Alberta Health Services has issued new warnings about at least a dozen locations in the province where people may have been exposed to confirmed cases of measles.
An Alberta Health Services sign is pictured outside the Rockyview General Hospital in Calgary, Thursday, March 20, 2025. Health officials in Alberta are reporting 29 new cases of measles, bringing the province's total to 118 since early March. THE CANADIAN PRESS/Jeff McIntosh
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Overview

  • Canada is experiencing its most severe measles resurgence since elimination nearly 30 years ago, with 880 cases reported across five provinces in 2025.
  • Ontario remains the hardest-hit province, recording 804 cases, including over 150 new cases in the past week alone.
  • Alberta's measles cases rose sharply from 89 on April 17 to 118 on April 22, prompting exposure warnings at over a dozen locations in the province.
  • Quebec has officially declared its 40-case measles outbreak over after 32 days without any new reported infections, marking the first resolved outbreak of the year.
  • Health authorities are urging Canadians to verify their MMR vaccination status, emphasizing that timely immunization, including within 72 hours of exposure, is highly effective in preventing the disease.