Table 2.
Distribution of LT and ST enterotoxins and colonization surface antigens among Colombian ETEC clinical isolates.
| Toxin gene type | Total number of isolatesa | CF type (s) produced | Number (%) of isolates |
|---|---|---|---|
| LT | 21 | CS21 + CFA/I | 1 (4.7) |
| CS21 + CS6 | 3 (14.2) | ||
| CS21 + CS12 | 1 (4.7) | ||
| CS21 + CS7 | 1 (4.7) | ||
| CS21 + CS2 + CS3 | 1 (4.7) | ||
| CS1 | 1 (4.7) | ||
| CS7 | 1 (4.7) | ||
| CS19 | 2 (9.5) | ||
| CS6 | 1 (4.7) | ||
| CF undetectedb | 9 (42.8) | ||
|
| |||
| LT-ST | 6 | CS21 | 1 (16.6) |
| CS5 + CS6 | 4 (66.6) | ||
| CS5 | 1 (16.6) | ||
|
| |||
| ST | 13 | CS21 + CFA/I | 12 (92.3) |
| CF undetectedb | 1 (8.3) | ||
aETEC isolates positive for any enterotoxin and positive or negative for any CSs.
bCSs undetected by PCR reaction.