Table 3. Age distribution of the most common clonal complexes identified in Italy, from 2008/09 to 2012/13.
| Age group (number per serogroup) | ||||||
|---|---|---|---|---|---|---|
| Clonal complex | <1 | 1–4 | 5–14 | 15–24 | >25 | Total |
| ST–41/44 | 13(12B, 1C) | 14 (14B) | 15 (14B, 1C) | 17 (17B) | 17 (16B, 1C) | 76 |
| ST–11 | 0 | 9 (9C) | 6 (6C) | 15 (14C, 1B) | 36 (33C, 2B, 1W) | 66 |
| ST–8 | 3 (3C) | 3 (3C) | 2 (2C) | 3 (3C) | 0 | 11 |
| ST–334 | 4 (4C) | 3 (3C) | 2 (2C) | 2 (2C) | 8 (8C) | 19 |
| ST–23 | 0 | 2 (2Y) | 18 (18Y) | 3 (3Y) | 21 (20Y, 1C) | 44 |
| ST–32 | 3 (3B) | 5 (5B) | 3 (3B) | 9 (8B, 1C) | 2 (2B) | 22 |
| ST–162 | 4 (4B) | 4 (4B) | 4 (4B) | 1 (1B) | 9 (9B) | 22 |
| ST–269 | 3 (3B) | 4 (4B) | 3 (3B) | 1 (1C) | 4 (4B) | 15 |