Table 2. Colonization factor (CF) types of enterotoxigenic Escherichia coli (ETEC) isolated from patients during diarrhea epidemic, Bangladesh*.
| Toxin produced | CF type(s) produced | No. isolates (%) |
|---|---|---|
| ST (n = 42) | CFA/I | 9 (21.4) |
| CFA/I, CS21 | 1 (2.38) | |
| CS1 + CS3, CS21 | 1 (2.38) | |
| CS4 + CS6 | 7 (16.67) | |
| CS5 + CS6 | 7 (16.67) | |
| CS6 | 6 (14.29) | |
| CS14 | 1 (2.38) | |
| CS17 | 1 (2.38) | |
| LT/ST (n = 12) | CFA/ | 1 (8.33) |
| CFA/I, CS21 | 1 (8.33) | |
| CS1 + CS3 | 2 (16.67) | |
| CS2 + CS3 | 1 (8.33) | |
| CS4 + CS6 | 2 (16.67) | |
| CS5 + CS6 | 3 (25.00) | |
| CS14 | 1 (8.33) | |
| LT (n = 9) | CS7 | 3 (33.3) |
| CS6 + CS8 | 1 (11.1) | |
| CS17 | 1 (11.1) |
*Of the 63 ETEC strains isolated, 78% were positive for 1 or more of the 12 CFs tested. Those that were positive are shown above. ST, heat stable; LT, heat labile