A measles outbreak in Quebec has risen to 27 cases, most of which are in the Quebec City area.
Health officials say the most recent case was reported on June 28.
Officials say 10 cases were reported last week in the regional municipality of Portneuf district, west of the provincial capital.
Display locations include the emergency room at St-Raymond Hospital and grocery stores and pharmacies in Pont-Rouge, Que., and Donnacona, Que.
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Other cases have been reported since early June in Montreal, Laval and the Montérégie, Laurentians and Lanaudière regions.
Since 2024, Quebec has experienced three additional measles outbreaks, the most recent of which began in November 2025 and ended in February 2026.
Measles is an extremely contagious disease and spreads through the air. On average, it takes 10 to 14 days from exposure to the virus for symptoms to appear, which include a high fever, cough, runny nose and red eyes. Infected individuals will then usually develop the characteristic rash of measles on their face and body.
Complications include ear infections, pneumonia, persistent diarrhea, especially in infants, loss of vision or hearing, permanent brain damage, and even death.
Most at risk are babies under one year old, people whose immune systems have been weakened by treatment for another disease, and pregnant women who have not been vaccinated against the disease.
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