Table 1 Number of meningitis cases by aetiology and origin of the infection, 2001–2005, Lazio, Italy.
Community acquired | Hospital infection | HIV-related | |||||
|---|---|---|---|---|---|---|---|
Aetiological agent | Total | n | % | n | % | n | % |
Pneumococcus | 221 | 208 | 24,6 | 12 | 16,2 | 2 | 7,7 |
Meningococcus | 161 | 152 | 18,0 | 6 | 8,1 | 3 | 11,5 |
Tuberculosis | 82 | 66 | 7,8 | 16 | 61,5 | ||
Streptococcus spp.* | 62 | 51 | 6,0 | 11 | 14,9 | ||
Staphylococcus spp. | 59 | 48 | 5,7 | 10 | 13,5 | 1 | 3,8 |
Haemophilus | 46 | 43 | 5,1 | 3 | 4,0 | ||
Listeria | 28 | 25 | 3,0 | 2 | 2,7 | 1 | 3,8 |
Salmonella | 2 | 2 | 0,2 | ||||
Other bacteria specified | 39 | 33 | 3,9 | 5 | 6,8 | 1 | 3,8 |
Other bacteria NOS | 83 | 67 | 7,9 | 14 | 18,9 | 2 | 7,7 |
Unknown | 161 | 150 | 17,8 | 11 | 14,9 | ||
Total | 944 | 845 | 100,0 | 74 | 100,0 | 26 | 100,0 |