Table 1.

Frequency of patients with diagnosis of SCA among bacterial meningitis cases identified in Salvador in the period of.1999–2011.

Year	No. of bacterial meningitis cases	No. of patients with SCA	Frequency of patients with SCA
1999–2000	538	2	0.37%
2001–2002	439	2	0.46%
2003–2004	326	1	0.31%
2005–2006	252	1	0.40%
2007–2008	378	2	0.53%
2009–2011	578	2	0.35%
Total	2511	10	0.4%