US EditionNew measles cases increase for third week in northern Ontario public health unit
- Algoma Public Health reported 115 measles cases with three hospitalizations as of June 19, 2025, amid a third consecutive week of new infections in northern Ontario.
- The northern outbreak began with the first case on April 23, following several months of a larger outbreak in Southwestern Ontario, which recorded 751 cases since October.
- Dr. John Tuinema attributes the northern rise to the virus spreading mainly in private households, noting a high vaccination rate of 87% for seven-year-olds and the region's small population size.
- Public Health Ontario reported 96 new cases in the province last week, and Tuinema said this increase was expected as the virus moves through unimmunized populations but hits a “wall of herd immunity.”
- Huron Perth Public Health is urging summer camp providers to ensure immunization records are current, identify measles symptoms, follow case protocols, and understand reporting requirements to prevent spread.
16 Articles
16 Articles
A region in northern Ontario, which experienced its first measles infection in April, is now experiencing dozens of new cases for the third consecutive week.
Winnipeg Free Press
New measles cases increase for third week in northern Ontario public health unit
Breaking News, Sports, Manitoba, Canada
As cases multiply in Manitoba, microbiologist Philippe Lagacé-Wiens and Professor Julie Lajoie sound alarmed: a combination of vaccine delay, disinformation and unequal access to care revived the virus at the heart of communities. Across Canada, there has been an alarming increase in measles cases since the beginning of 2025. With dozens of cases since the beginning of the year, this increase in cases observed in Manitoba is already considered a…
TORONTO — A region in northern Ontario, which experienced its first measles infection in April, is now registering dozens of new cases for the third consecutive week. Public Health Ontario reports 96 new cases of measles in the province over the past week, bringing the total number to 2179 since the outbreak began in October. Algoma's public health office, which includes Sault Ste. Marie, has recorded 34 of these new infections. Last week, the o…
New measles cases increase for third week in northern Ontario public health unit – 105.9 The Region
TORONTO — A northern Ontario region that saw its first measles infection in April is now seeing dozens of new cases for the third week in a row. Public Health Ontario is reporting 96 new measles cases in the province over the past week, bringing the total number to 2,179 since an outbreak began in October. Thirty-four of the new infections are in Algoma Public Health, which includes Sault Ste. Marie. Last week, it had 28 new infections, which ha…
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