Table 1.

Number of specimens tested and influenza cases, and percentages attributable to influenza A and B virus types

Season	Specimens tested	Influenza cases	% positive	A	B
2003–2004	2,737	950	34.7 %	946 (99.6 %)	4 (0.4 %)
2004–2005	3,782	1,118	29.6 %	1,018 (91.1 %)	100 (8.9 %)
2005–2006	4,858	903	18.6 %	340 (37.7 %)	563 (62.3 %)
2006–2007	4,609	1,061	23.0 %	1,055 (99.4 %)	6 (0.6 %)
2007–2008	5,084	1,375	27.0 %	893 (64.9 %)	482 (35.1 %)
2008–2009	4,860	1,564	32.2 %	1,336 (85.4 %)	228 (14.6 %)
2009–2010	8,822	3,105	35.2 %	3,098 (99.8 %)	7 (0.2 %)
2010–2011	5,255	2,068	39.4 %	1,086 (52.5 %)	982 (47.5 %)
2011–2012	4,465	1,530	34.3 %	1,474 (96.3 %)	56 (3.7 %)
2012–2013	5,447	2,613	48.0 %	1,189 (45.5 %)	1,424 (54.5 %)
Total	49,919	16,287	32.6 %	12435 (76.3 %)	3852 (23.7 %)

Source: GROG influenza sentinel surveillance network, France, 2003–2004 to 2012–2013