Disease facts about seasonal influenza
Seasonal influenza is a vaccine-preventable disease that each year infects approximately ten to thirty per cent of Europe's population, and causes hundreds of thousands of hospitalisations across Europe.
Timeline on the pandemic (H1N1) 2009
This timeline of the 2009 Influenza Pandemic runs from the first described cases in California in April 2009 to July 10th 2010 when the WHO Director General declared that the pandemic was over. It describes events from the perspective of European Union and European Economic Area institutions and countries. However it also contains global events of relevance to Europe, such as declarations of phase changes. Where possible, links are given to primary published documentation. Events, decisions and meetings taking place at a European Level are especially emphasised.
Seasonal influenza vaccination strategies
The immunity that is elicited by influenza vaccines is not as long lived as the immunity following natural influenza infection. This is especially so for individuals in the so-called risk groups, hence people have to be vaccinated annually. There are three influenza immunisation strategies used in Europe: to protect the vulnerable, to protect healthy children, adolescents and adults and to reduce overall influenza transmission.