Table 2. Demographic characteristics and specimen source for invasive Neisseria meningitidis serogroup W (MenW) cases according to clonal complex in Canada, 2009–2016.
| Demographics and specimen source | ST-22 CC isolates n (%) |
ST-11 CC isolates n (%) |
|---|---|---|
| Sex | ||
| Male | 20 (51%) | 13 (59%) |
| Female | 19 (49%) | 9 (41%) |
| Age | ||
| < 12 months | 4 (10%) | 0 |
| 12–23 months | 4 (10%) | 0 |
| 2–5 years | 6 (15%) | 2 (10%) |
| 6–10 years | 1 (3%) | 0 |
| 11–20 years | 5 (13%) | 4 (18%) |
| 21–40 years | 5 (13%) | 2 (10%) |
| 41–60 years | 5 (13%) | 7 (31%) |
| > 60 years | 8 (21%) | 7 (31%) |
| Unknown | 1 (3%) | 0 |
| Specimen source | ||
| Blood | 33 (84.6%) | 21(95%) |
| Cerebral spinal fluid | 3 (7.7%) | 1 (5%) |
| Others1 | 3 (7.7%) | 0 |
| Total number of samples | 39 (100%) | 22 (100%) |
Abbreviations: CC, clonal complex; n, number; ST, sequence type 1 Shoulder, pericardial or articular fluid