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Figure 4 | BMC Medicine

Figure 4

From: The age distribution of mortality due to influenza: pandemic and peri-pandemic

Figure 4

A semi-log plot of excess All-Cause excess mortality rate variation with age for epidemic seasons during the era of circulation of influenza A(H2N2) viruses in Canada (A) and Japan (B). The pandemic season appears as a dashed red line. Old elderly had their lowest mortality in that season. The most recent precedent season dominated by H1 viruses appears in purple. Mortality was generally decreased in the pandemic in Japan. The different time courses of immune escape in these countries are shown in Canada (C) and Japan (D)

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