Table 1

Distribution of confirmed cases of meningococcal disease in Catalonia, 1996–1999

		1996				1997				1998				1999
		Cases (n)	%			Cases (n)	%			Cases (n)	%			Cases (n)	%
Serogroup B	123	63.4		102	54.6		77	70.6		113	74.8
Serogroup C total	64	33.0		77	41.2		28	25.7		33	21.9
Serogroup C <18 months	2	1.0		13	7.0		4	3.7		9	6.0
Serogroup C 18 months–19 years	49	25.3		50	26.8		13	11.9		16	10.6
Other serogroups	2	1.0		1	0.5		0	0		1	0.7
Non-groupable	5	2.6		7	3.7		4	3.7		4	2.6
Total	194	100		187	100		109	100		151	100