Factsheet about seasonal influenza
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.
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.
Questions and answers on the pandemic (H1N1) 2009
What is the influenza A(H1N1)v virus? What is the origin of the 2009 pandemic influenza A(H1N1) virus? What is the difference between the pandemic (H1N1) 2009 and swine influenza?
Questions and answers on influenza pandemics
A pandemic is the rapid spread of a new human influenza around the world. Influenza pandemics happen when a new strain of a flu virus appears which can infect humans, to which most people have no immunity and which can transmit efficiently from human to human.