This website is part of the ECDC (European Centre for Disease Prevention and Control) network

Risk and threat assessments

The 2009 influenza A (H1N1) pandemic site is no longer being updated. However, updated pandemic 2009 evaluations are available on the influenza pandemic preparedness site, together with the summaries of the pandemic.

The 2009 influenza A(H1N1) pandemic was declared over in August 2010 by the World Health Organization. Europe has now entered a new inter-pandemic phase of seasonal influenza. For updated information, see the seasonal influenza site. For information regarding pandemic preparedness, including post-pandemic plans, see the influenza pandemic preparedness site.



In April 2009, ECDC produced an initial assessment of the public health risk to Europe from the newly emerging strain of influenza. This risk assessment has been continually updated as the situation has evolved and more evidence becomes available. It takes into account questions and suggestions from a variety of sources including the European Commission, EU Member States and the World Health Organization.

The risk assessments are strictly evidence-based. Surveillance data, analyses and published information that have been subject to a peer-review process are preferred sources.


See all influenza risk and threat assessments

































































































































































© European Centre for Disease Prevention and Control (ECDC) 2005 - 2017