Figure 1From: Incidence of bacterial meningitis (2001–2005) in Lazio, Italy: the results of a integrated surveillance system Bacterial meningitis in Lazio, Italy, 2001–2005. Number of cases by place of birth and incidence by aetiological agent. 2a, the actual denominator of foreign-born people is not available, so only absolute numbers can be compared; 2b, in the incidence only residents of Lazio are included, independent of citizenship.Back to article page