New measles incidents identified in Ontario's Southwestern area, with a total count of 3 cases
Measles Outbreak in Southwestern Ontario Slows Down
In the latest update, Southwestern Ontario has reported a total of 769 measles infections since the outbreak began in October 2024. The region has seen a notable decrease in weekly case counts, with only three new cases reported in the week ending August 12 [1][3].
Province-wide in Ontario, there have been 2,362 total cases reported since October 2024, with most hospitalizations occurring in unvaccinated infants, children, and teenagers. Public health officials emphasize that despite the downward trend in new cases, continued vigilance and vaccination efforts remain crucial to prevent further spread [1][2].
Across Ontario in 2025, the majority of cases have been in unvaccinated individuals born after 1970, with hospitalization rates around 12.5% and one reported death in a young child [2]. This outbreak in Ontario is part of a multi-jurisdictional measles outbreak involving travel and community transmission, with molecular testing confirming cases throughout the year [2].
Nationally in Canada, several provinces including Ontario reported measles cases earlier in 2025, with Ontario among the hardest hit [4]. The current outbreak originated in Ontario before spreading to some U.S. regions, especially unvaccinated communities like Mennonites in the Southwest U.S. [5].
In other news, the Canadian Press health coverage received support through a partnership with the Canadian Medical Association [6]. Meanwhile, heated socks are being recalled due to potential burns and blisters [7]. A salmonella recall has been issued for pistachios [8], and new FDA-approved eye drops can fix near vision issues [9].
References:
- CBC News
- Public Health Ontario
- The Globe and Mail
- The Canadian Press
- National Geographic
- Canadian Medical Association
- Health Canada
- Canada Food Inspection Agency
- FDA
