Laboratory confirmed cases of all invasive meningococcal disease by age and calendar year, England and Wales 1998 to 2010*

Age Group (years)	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010
Under 1	493	495	483	477	364	359	320	348	277	326	304	233	236
1 year	259	293	257	262	224	229	167	188	188	158	166	136	115
2 years	165	197	212	168	135	119	103	104	94	107	112	77	65
3-4 years	231	281	269	188	171	154	117	131	95	109	113	96	67
5-8 years	186	242	218	163	118	101	83	103	87	92	64	71	50
9-10 years	42	63	47	34	52	37	15	31	30	18	18	25	14
11-14 years	137	166	133	132	77	76	53	52	31	32	41	34	17
15-19 years	347	392	271	235	164	160	124	135	115	137	130	111	96
20-24 years	108	124	143	124	84	67	48	66	45	60	46	45	44
≥25 years	450	496	620	539	359	302	278	253	193	239	230	196	205
NK	19	35	9	6	4	6	1	3	16	9	5	7	2
Total	2437	2784	2662	2328	1752	1610	1309	1414	1171	1287	1229	1031	911

*Provisional data

Last reviewed: 2 August 2011