ECDC risk assessment: 2009 influenza A(H1N1) pandemic (Update 21 August 2009)

Risk assessment

​This interim ECDC risk assessment for Europe points out that the 2009 pandemic influenza A(H1N1) 2009 virus will continue to transmit in a heterogeneous manner but at a low level over the summer in European countries. It is most likely that this will be followed by the proper first wave of a pandemic that will take place in the autumn and winter of 2009–10 and planning should be undertaken on that basis