Table 3.

Influenza virus detections by country and age group for sentinel and non-sentinel specimens.

		Sentinel			Non-sentinel
Country	Age group (years)	Total number of specimens tested	Number of specimens tested positive for influenza	Percentage positive (%)	Number of specimens tested positive for influenza
England	0–4	49	12	24.5	260
	5–14	63	33	52.4	81
	15–64	307	51	16.6	143
	> 65	45	2	4.4	45
	NK	11	3	27.3	12
	Total	475	101	21.3	541
Scotland	0–4	29	0	0	64
	5–14	67	16	23.9	53
	15–64	444	13	2.9	108
	> 65	58	2	3.4	31
	NK				1
	Total	598	31	5.2	257
France	0–4	426	82	19.2
	5–14	442	184	41.6
	15–64	557	109	19.6
	> 65	32	1	3.1
	Total	1,457	376	25.8	243
Netherlands	0–4	0	0
	5–14	7	3	42.9
	15–64	42	8	19.0
	> 65	7	4	57.1
	Total	56	15	26.8	239

NK: not known