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Canada Loses Measles Elimination Status Amid Outbreak

11/12/2025

23 3 Full Breakdown

Summary

Story summary

Canada has lost measles elimination status after reporting more than 5,000 cases this year, mainly in Ontario and Alberta.
The outbreak began in October 2024 and has persisted for over a year, causing two infant deaths.
Vaccination rates declined to 82.5% for the first MMR dose by 2023, far below the 95% herd-immunity target.
The Pan American Health Organization (PAHO) confirmed the loss of status across the Americas region.

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Story summary

Canada has lost measles elimination status after reporting more than 5,000 cases this year, mainly in Ontario and Alberta.
The outbreak began in October 2024 and has persisted for over a year, causing two infant deaths.
Vaccination rates declined to 82.5% for the first MMR dose by 2023, far below the 95% herd-immunity target.
The Pan American Health Organization (PAHO) confirmed the loss of status across the Americas region.