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. 2011 Aug 31;6(8):e23853. doi: 10.1371/journal.pone.0023853

Figure 2. Excess weekly influenza case number in 2009 over the average weekly influenza case number of 2004-2008 in (a) Mexico City, weeks 5–9, 2009 (b) all of Mexico, weeks 5-12, 2009.

Figure 2

Red line is the 2009 weekly influenza case data; Green line is the averaged 2004–2008 weekly influenza case data; blue line is the upper 97.5% levels; and the boxes are the weekly excess case numbers.