Table 2.
Number of strains in each MLST cluster in correlation to their phenotypic virulence factors.
| Biofilm formation (%) |
Phospholipase activity (%) |
Hemolytic activity (%) |
Total | Patient outcome∗∗ (%) |
Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clades | High | Low | None | Medium | Strong | Very strong | Positive | Strong positive | Cure | Dead | ||
| 1 | 4 (50) |
1 (12.5) |
3 (37.5) |
8 (100) |
2 (25) |
6 (75) |
5 (62.5) |
3 (37.5) |
8 (100) |
4 (57.1) |
3 (42.9) |
7 (100) |
| 17 | 6 (46.2) |
4 (30.8) |
3 (23) |
13 (100) |
5 (38.5) |
8 (61.5) |
4 (30.8) |
9 (69.2) |
13 (100) |
3 (25) |
9 (75) |
12 (100) |
| Other∗ | 15 (60) |
8 (32) |
2 (8) |
25 (100) |
6 (12) |
16 (24) |
19 (76) |
6 (24) |
25 (100) |
9 (45) |
11 (55) |
20 (100) |
| All strains | 25 (54.3) |
13 (28.3) |
8 (17.4) |
46 (100) |
13 (28.3) |
30 (65.2) |
28 (60.9) |
18 (39.1) |
46 (100) |
16 (41) |
23 (59) |
39 (100) |
| P value | 0.335 | 0.503 | 0.025 | - | 0.340 | - | ||||||
∗Clade 3 (n = 3), clade 5 (n = 4), clade 7 (n = 2), clade 8 (n = 6), clade 11 (n = 4), clade 12 (n = 1), clade 18 (n = 2), singleton (n = 3). ∗∗Because mixed infections by different DSTs occurred and some strains with identical DSTs from the same patients had variations in virulence phenotypes, all strains from the same patients were considered as different strains and analyzed separately.