Fig. 1
From: Ten influenza seasons in France: distribution and timing of influenza A and B circulation, 2003–2013
Percentages of subtyped influenza A cases by subtype and season (upper panel), and of characterized influenza B cases by lineage and season (lower panel; only for seasons when influenza B accounted for at least 10 % of all influenza cases) Source: GROG influenza sentinel surveillance network, France, 2003–2004 to 2012–2013