Skip to main content

About the vaccine


Flu can be very serious. Like COVID-19, it is caused by a virus and it can lead to illnesses such as bronchitis and pneumonia, which may need treatment in hospital.

There are outbreaks of flu most winters, especially in hospitals and care homes.

In a normal winter, thousands of people will die from flu-related illnesses in the UK.

This winter we may see COVID-19 and flu both circulating at the same time, so it’s very important to get protected.

Having a flu vaccine every year is one of the best ways to protect against flu.

Flu vaccines are quick and very safe, and could prevent weeks of serious illness.







Children and young people





If you have any further questions or want more information, you can visit, talk to your doctor or nurse or call NHS 111 Wales.

You can find out more about flu vaccines, including their contents and possible side effects, at Enter the name of the vaccine in the search box.

You can find out how to report suspected side effects online at or by calling 0800 731 6789 (Monday to Friday 9am to 5pm).

A schedule showing which immunisations are routinely offered in Wales is available from