ECDC risk assessment: 2009 influenza A(H1N1) pandemic (Update 20 July 2009)

The interim ECDC risk assessment for Europe is that the 2009 pandemic influenza A(H1N1) virus will continue to spread, but many uncertainties remain. Though it seems that most of those infected in the US and in Europe experience a mild and self-limiting infection, this picture is still unclear as there has not been enough transmission to judge the effects, especially in those more at risk.