Influenza is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent flu is by getting a flu vaccine each year.
The information contained in this factsheet is intended for the purpose of general information and should not substitute individual expert advice and judgement of healthcare professionals.
The Flu Awareness Campaign is marked across the WHO European Region every year in October. It aims to raise awareness of the importance of vaccination for people’s health and well-being and to increase the uptake of seasonal influenza vaccination of people with underlying risk factors.