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. 2015 Sep 1;10(9):e0136186. doi: 10.1371/journal.pone.0136186

Fig 2. Age distribution of influenza cases by virus type and subtype.

Fig 2

The IBVD (Influenza B in Vircases database) study, France, 2003–2004 to 2012–2013. The age distribution of H3N2 cases is shown in red, B cases in grey and H1pdm09 in blue.