TABLE 1.
Characteristics of the O6:H16 ETEC strains studied
| Country of origin and strain | Virulence factors
|
RAPD profile
|
RAPD type | ||
|---|---|---|---|---|---|
| Toxin(s)a | CFs | Primer 1254 | Primer 1290 | ||
| Brazil | |||||
| Br 15 | LT/ST | CS1-CS3 | A1 | B1 | 1 |
| Br 16 | LT/ST | CS2-CS3 | A1 | B1 | 1 |
| Br 23 | LT/ST | CS1-CS3 | A2 | B2 | 3 |
| Br 26 | LT/ST | CS2-CS3 | A2 | B5 | 5 |
| Br 64 | LT/ST | CS2-CS3 | A2 | B5 | 5 |
| Br 45 | LT/ST | CS1-CS3 | A2 | B2 | 3 |
| Mexico | |||||
| Mx 6 | LT/ST | CS2-CS3 | A2 | B1 | 2 |
| Mx 7 | LT/ST | CS2-CS3 | A2 | B1 | 2 |
| Mx 8 | LT/ST | CS2-CS3 | A2 | B1 | 2 |
| Mx 9 | LT/ST | CS2-CS3 | A2 | B8 | 8 |
| Mx 10 | LT/ST | CS2-CS3 | A2 | B2 | 3 |
| Honduras | |||||
| Hd 35 | LT/ST | CS1-CS3 | A2 | B2 | 3 |
| Philippines | |||||
| Ph 25 | LT | Negative | A3 | B4 | 10 |
| Ph 28 | LT/ST | CS1-CS3 | A2 | B2 | 3 |
| Ph 35 | LT/ST | CS1-CS3 | A2 | B1 | 2 |
| Ph 55 | LT/ST | CS1-CS3 | A2 | B1 | 2 |
| Argentina | |||||
| Ag 7 | LT/ST | CS1-CS3 | A2 | B6 | 6 |
| Ag 8 | LTST | CS2-CS3 | A2 | B3 | 4 |
| Ag 9 | LT/ST | CS1-CS3 | A2 | B2 | 3 |
| Ag 18 | LT/ST | CS2-CS3 | A2 | B3 | 4 |
| Ag 19 | LT/ST | CS2-CS3 | A2 | B3 | 4 |
| Ag 20 | LT/ST | CS1-CS3 | A2 | B6 | 6 |
| Ag 21 | LT/ST | CS2-CS3 | A2 | B1 | 2 |
| Ag 22 | LT/ST | CS2-CS3 | A2 | B9 | 9 |
| Ag 23 | LT/ST | CS1-CS3 | A2 | B2 | 3 |
| Bangladesh | |||||
| Bg 1 | LT/ST | CS2-CS3 | A2 | B8 | 8 |
| Bg 2 | LT/ST | CS2-CS3 | A2 | B8 | 8 |
| Bg 3 | LT/ST | CS2-CS3 | A2 | B7 | 7 |
| Bg 4 | LT/ST | CS1-CS3 | A2 | B1 | 2 |
a
LT and ST refer to the subtypes LTI and STaII, respectively.