Measles rash. (Photo by Singjai20/iStock / Getty Images Plus)Measles rash. (Photo by Singjai20/iStock / Getty Images Plus)
Midwestern

New measles cases added in Midwestern Ontario

The number of measles cases in Huron Perth continues to grow.

Public Health Ontario reports a total of 214 cases in Huron Perth between October 28, 2024, and May 20, 2025. That's an increase of 22 cases in a week.

However, there were no new cases reported in Grey Bruce Owen Sound. There have been 40 cases in that region since the outbreak began last fall.

In all, Ontario has seen 1,795 cases during the outbreak, including 173 new cases between May 13 and May 20.

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