Santé Montréal


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The flu is a respiratory infection that spreads easily. It is caused by the influenza virus.

This virus circulates each year in Québec and elsewhere in the world. In Québec, it mostly spreads during the end of the fall to the beginning of the spring.

The duration of the flu season may vary. As such, it may start earlier or later and last shorter or longer depending on the year.


For more details, consult the Flu (Influenza) section from the Official website of the Gouvernement du Québec, Qué


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When to Consult

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Protection and prevention

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Risk factors

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Help and Resources

If you have flu symptoms

See the Decicion assistant is available (PDF) to help you decide what is best for you and your family

Where to get the flu shot in Montréal?

Go to the Flu vaccination in Montréal section.

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People at Risk

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Dernière mise à jour le : 2019.01.20