Figure 4From: The first wave of pandemic influenza (H1N1) 2009 in Germany: From initiation to acceleration Age distribution of cases with pandemic influenza (H1N1) 2009 infection in Germany from week 24 to week 45 in 2009; age distribution in weeks 24 to 41 (initiation period) and in weeks 42 to 45 (acceleration period).Back to article page