Why is CHEO concerned about flu cases in November?

CHEO is concerned because flu cases and hospitalizations in children significantly increased in November 2025 compared to the previous year.

How many children were hospitalized with the flu at CHEO?

Twice as many children were hospitalized with the flu last month (November 2025) compared to the prior November.

Where can children get the flu vaccine in Ontario?

Children older than six months can get the flu vaccine for free in Ontario through pharmacies, medical clinics, and Ottawa Public Health.

Home / Health / Flu Surges: CHEO Sees 8x More Cases

Flu Surges: CHEO Sees 8x More Cases

3 Dec

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Summary

CHEO reported eight times more flu cases in November 2025 than in 2024.
Hospitalizations for the flu doubled last month compared to the prior year.
Most affected children had not received their annual flu vaccine.

CHEO, Ottawa's children's hospital, has expressed serious concern over a substantial rise in flu cases among young patients. In November 2025, the hospital observed an eightfold increase in positive flu tests compared to the previous year, and hospitalizations due to the flu doubled. Most children admitted to CHEO had not received their annual flu vaccination, highlighting a critical need for greater uptake. The hospital urges everyone to get vaccinated to bolster community health and safeguard vulnerable individuals, particularly children under five with underdeveloped immune systems.

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