Table 1.
Characteristics of C. difficile (n = 341) present in British Columbia in 2008 by NAP designation (number (%)).
| NAP1 (n = 146) | NAP2 (n = 35) | NAP4 (n = 46) | NAP6 (n = 8) | NAP7 (n = 7) | NAP10 (n = 14) | Other∗
(n = 12) |
None†
(n = 73) |
|
|---|---|---|---|---|---|---|---|---|
| Toxin gene presence | ||||||||
| A+ B+, CDT+ | 144 (98.6) | 1 (2.9) | 0 | 0 | 0 | 0 | 0 | 17 (23.3) |
| A+ B+, CDT− | 2 (1.4) | 34 (97.1) | 46 (100) | 8 (100) | 0 | 14 (100) | 12 (100) | 55 (75.3) |
| A− B+, CDT+ | 0 | 0 | 0 | 0 | 7 (100) | 0 | 0 | 1 (1.4) |
| tcdC genotype | ||||||||
| Wildtype | 7 (4.8) | 33 (94.3) | 44 (95.7) | 8 (100) | 0 | 13 (92.9) | 9 (75.0) | 57 (78.1) |
| −19 | 137 (93.8) | 2 (5.7) | 0 | 0 | 0 | 0 | 0 | 5 (6.8) |
| −18 | 2 (1.4) | 0 | 0 | 0 | 0 | 0 | 3 (25.0) | 5 (6.8) |
| ≥−37 | 0 | 0 | 0 | 0 | 7 (100) | 0 | 0 | 6 (8.2) |
| ≥+1 | 0 | 0 | 2 (4.3) | 0 | 0 | 1 (7.1) | 0 | 0 |
∗Overall distribution: 2 NAP3, 3 NAP5, 6 NAP11, and 1 NAP12. tcdC with an 18 bp deletion attributed to 2 NAP11 and 1 NAP12.
†Isolates with pulsed field gel electrophoresis patterns not matching a known NAP type.
NAP: North American pulsotype.