Vaccine - Flu

The seasonal flu vaccine (flu jab) protects against several strains of flu virus. These are the strains most likely to be circulating this flu season.

You need to get a new vaccine each year. This is because the strains of the virus change. This is why it is called seasonal flu. But people commonly call it flu.

The flu vaccine is a safe and effective vaccine. It's offered every year to help protect people at risk of flu and its complications. The flu vaccine is safe to take during pregnancy.

How to get the flu vaccine

The best time to have the flu vaccine is in the autumn before flu starts spreading. But you can get the vaccine later.

Read about the flu vaccine

Content supplied by the NHS and adapted for Ireland by the HSE

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This project has received funding from the Government of Ireland’s Sláintecare Integration Fund 2019 under Grant Agreement Number 123.

Page last reviewed: 12 June 2019
Next review due: 12 June 2022