TABLE 1.
Shiga toxin-producing strains used in this study
| Species (strain) | Serotypea | Origin | Shiga toxin(s) produced |
|---|---|---|---|
| E. coli (ATCC 43890) | O157:H7 | United States (Calif.) | Stx1 |
| E. coli (ATCC 43894) | O157:H7 | United States (Mich.) | Stx1, Stx2 |
| E. coli (ATCC 43895) | O157:H7 | United States | Stx1, Stx2 |
| E. coli (CDC 97-3254) | O157:H7 | United States (Minn.) | Stx1 |
| E. coli (CDC 97-3330) | O157:H7 | United States (Ga.) | Stx2 |
| E. coli (CDC 98-3055) | O157:H7 | United States (Tenn.) | Stx1, Stx2 |
| E. coli (LSPQ 2127) | O157:H7 | Canada (Quebec) | Stx1, Stx2 |
| E. coli (LSPQ 3760) | O157:H7 | Canada (Quebec) | Stx1, Stx2 |
| E. coli (LSPQ 3761) | O157:H7 | Canada (Quebec) | Stx2 |
| E. coli (LSPQ 3762) | O157:H7 | Canada (Quebec) | Stx1, Stx2 |
| E. coli (CDC 98-3169) | O157:NM | United States (Oreg.) | Stx2 |
| E. coli (CDC 98-3186) | O145:NM | United States (Mo.) | Stx1, Stx2 |
| E. coli (CDC 99-3077) | O111:NM | United States (Va.) | Stx1, Stx2 |
| E. coli (CDC 97-3162) | O111:NM | United States (Mont.) | Stx1, Stx2 |
| E. coli (CDC 89-3156) | OX3:H21 | United States (Mich.) | Stx2 |
| E. coli (HK 7828/95) | O103:H2 | Germany | Stx1, Stx2 |
| E. coli (HK 2905/96) | O103:H2 | Germany | Stx1 |
| E. coli (HK 6037/96) | O111:NM | Germany | Stx1, Stx2 |
| E. coli (HK 5380/96) | O111:NM | Germany | Stx1 |
| E. coli (HK 5720/96) | O26:NM | Germany | Stx2 |
| E. coli (HK 8574/96) | O26:NM | Germany | Stx1 |
| E. coli (HK 7465/96) | O145:NM | Germany | Stx1 |
| E. coli (HK 3485/99) | O145:NM | Germany | Stx2 |
| S. dysenteriae (ATCC 11835) | Type 1 | United States | Stx1 |
| S. dysenteriae (CDC C898) | Type 1 | Mexico | Stx1 |
| S. dysenteriae (CDC BU2X1) | Type 1 | Burundi | Stx1 |
| S. dysenteriae (CDC F4101) | Type 1 | Bangladesh | Stx1 |
a
NM, nonmotile.