| invasive meningococcal disease in malta: an epidemiological overview, 1994-2007. | since 1996, malta has experienced an upsurge of invasive meningococcal disease (imd) following an almost 30 year period with a negligible number of annually reported cases. we reviewed the 233 imd cases notified during a 14 year period (1994-2007), and analysed epidemiological and laboratory surveillance data. the crude incidence per 100,000 inhabitants peaked in 2000 at 8.1 [95 % confidence interval (ci) 5.7-11.6] and again in 2006 at 8.9 (95 % ci 6.4-12.4), thereby placing malta amongst the co ... | 2009 | 19589903 |