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Flu

The flu is a contagious viral respiratory infection that causes seasonal outbreaks every winter. The flu vaccine is the most effective way to protect yourself.

Our missions

  • Monitor the epidemiological status of influenza and assess its impact on public health

  • Promote vaccination and preventive measures against influenza

  • Informing healthcare professionals and the general public

The disease

Pandemic influenza

An influenza pandemic is an epidemic that spreads across a very large geographical area following the emergence of a new influenza virus, usually resulting from a major genetic change.

The flu, a seasonal epidemic

In mainland France, the epidemic occurs every year, generally between November and April, usually beginning in late December or early January. It lasts an average of 10 to 11 weeks.