TABLE 1.
Invasive meningococcal disease (IMD) and clonal genetics of invasive serogroup C Neisseria meningitidis in Canada, from 2002 to 2009
| Year | IMD cases*, n | Cases due to serogroup C |
Serogroup C isolates belonging to
|
||
|---|---|---|---|---|---|
| ET-15 | ET-37 (but not ET-15) | Non-ET-15/non-ET-37 | |||
| 2002 | 186 | 72 (39) | 69 (96) | 2 (3) | 1 (1) |
| 2003 | 145 | 36 (25) | 29 (81) | 2 (6) | 5 (14) |
| 2004 | 156 | 45 (29) | 41 (91) | 0 (0) | 4 (9) |
| 2005 | 164 | 39 (24) | 34 (87) | 2 (5) | 3 (7) |
| 2006 | 154 | 33 (21) | 20 (61) | 9 (27) | 4 (12) |
| 2007 | 186 | 25 (13) | 12 (48) | 12 (48) | 1 (4) |
| 2008 | 158 | 27 (17) | 7 (26) | 18 (67) | 2 (7) |
| 2009 | 173 | 17 (10) | 6 (35) | 9 (53) | 2 (12) |
| All years | 1322 | 294 (22) | 218 (74) | 54 (18) | 22 (8) |
Data presetented as n (%) unless otherwise indicated.
*
The number of IMD cases was based on the number of invasive N meningitidis isolates received at the National Microbiology Laboratory (Winnipeg, Manitoba). ET Electrophoretic type