Tab. SI.
Cases of invasive meningococcal disease according to serogroup and year, Italy, 2011-2017.
| Year | Overall (2011-17) |
|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | ||||||||||
| N | % Out of the total typed | N | % Out of the total typed | N | % Out of the total typed | N | % Out of the total typed | N | % Out of the total typed | N | % Out of the total typed | N | % Out of the total typed | N | % Out of the total typed | |
| Serogroup | ||||||||||||||||
| A | 1 | 0.9% | 1 | 0.9% | 0 | 0.0% | 1 | 0.9% | 0 | 0.0% | 0 | 0.0% | 0 | 0.0% | 3 | 0.3% |
| B | 76 | 65.0% | 55 | 51.4% | 56 | 48.3% | 55 | 47.8% | 49 | 34.3% | 69 | 36.3% | 74 | 41.3% | 434 | 44.9% |
| C | 20 | 17.1% | 32 | 29.9% | 36 | 31.0% | 36 | 31.3% | 63 | 44.1% | 80 | 42.1% | 57 | 31.9% | 324 | 33.5% |
| W | 4 | 3.4% | 1 | 0.9% | 5 | 4.3% | 8 | 7.0% | 7 | 4.9% | 13 | 6.8% | 12 | 6.7% | 50 | 5.2% |
| X | 0 | 0.0% | 0 | 0.0% | 0 | 0.0% | 0 | 0.0% | 1 | 0.7% | 3 | 1.6% | 2 | 1.1% | 6 | 0.6% |
| Y | 16 | 13.7% | 18 | 16.8% | 19 | 16.4% | 15 | 13.0% | 23 | 16.1% | 25 | 13.2% | 34 | 19.0% | 150 | 15.5% |
| IMD with serogroup notified | 117 | 107 | 116 | 115 | 143 | 190 | 179 | 967 | ||||||||
| IMD without serogroup notified | 35 | 30 | 56 | 49 | 46 | 37 | 19 | 272 | ||||||||
| Total IMD notified | 152 | 137 | 172 | 164 | 189 | 227 | 198 | 1,239 | ||||||||
| % of the total IMD with serogroup notified | 77.0% | 78.1% | 67.4% | 70.1% | 75.7% | 83.7% | 90.4% | 78.0% | ||||||||
IMD: invasive meningococcal disease.