Flu Vaccination

Winter Flu Campaign 2025

The winter flu campaign (2025-26 flu season) has now ended.
We will share information about the winter flu campaign for 2026 in due course.

Last updated: 24 April 2026

Each year in Wales, around a million people have their flu vaccine. That’s more than one in every four people.   

Flu is more likely to be serious if you have a long-term health condition, are pregnant, or are older.   

Flu can also be serious for young children.  

About the flu vaccine

Flu can be very serious. It is caused by a virus, which is spread by coughs and sneezes. Symptoms of flu can be mild but can also lead to more serious illnesses such as bronchitis and pneumonia (lung infections), which may need treatment in hospital. 

Flu is very infectious, and symptoms can come on very quickly. Symptoms of flu include a high temperature, tiredness and weakness, headache, aches and pains and a cough. More information about flu is available from the NHS 111 Wales website. 

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. Having a flu vaccine every year is one of the best ways to protect against flu. It is very important to get your flu vaccine every year if you are eligible. 

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

For more information about the flu vaccination, visit the Public Health Wales website.