Table 1 Serogroups, virulence factors and sequence types (STs) of the 91 STEC isolates
ST | No. of isolates | Serogroup | Stx1 | Stx2 | eae | ehxA | saa |
|---|---|---|---|---|---|---|---|
ST10 | 5 | O34 | + | + | – | + | – |
O92 | – | + | – | – | – | ||
O97 | – | + | – | + | – | ||
O98 | + | + | – | – | + | ||
O149 | – | + | – | + | – | ||
ST26 | 2 | O69 | + | + | – | + | + |
O100 | – | + | – | + | + | ||
ST29 | 11 | O76 | + | + | – | + | + |
O92 | + | + | + | – | – | ||
O97 | + | + | – | + | – | ||
O97 | + | + | – | + | – | ||
O100 | + | + | – | + | + | ||
O100 | + | – | – | + | + | ||
O100 | + | + | – | + | – | ||
O102 | – | + | + | – | – | ||
O102 | – | + | + | – | – | ||
O102 | + | + | – | + | – | ||
Nontypable | + | + | – | + | – | ||
ST101 | 7 | O26 | + | + | – | – | – |
O97 | + | + | – | + | – | ||
O100 | – | + | – | – | – | ||
O100 | + | + | – | + | + | ||
O100 | + | + | – | + | – | ||
O102 | + | + | – | + | – | ||
O149 | – | + | – | + | – | ||
ST156 | 1 | O64 | + | + | – | + | – |
ST297 | 29 | O5 | + | + | – | + | – |
O6 | + | + | – | + | – | ||
O21 | – | + | – | + | – | ||
O22 | + | + | – | + | + | ||
O26 | + | + | – | + | – | ||
O26 | + | + | – | + | – | ||
O26 | + | + | – | + | – | ||
O26 | + | + | – | + | – | ||
O39 | – | + | – | + | – | ||
O54 | + | + | – | + | – | ||
O55 | + | + | – | + | – | ||
O75 | + | + | – | + | – | ||
O91 | + | + | – | + | – | ||
O91 | + | + | – | + | + | ||
O97 | + | + | – | + | – | ||
O97 | + | + | – | + | + | ||
O97 | + | + | – | + | + | ||
O97 | + | + | – | + | – | ||
O97 | + | + | – | + | – | ||
O97 | + | + | – | + | – | ||
O97 | + | + | – | + | – | ||
O100 | + | + | – | + | – | ||
O100 | + | – | – | + | + | ||
O100 | + | – | – | + | – | ||
O100 | + | – | – | + | – | ||
O145 | + | + | – | + | – | ||
O149 | – | + | – | + | – | ||
O173 | + | + | – | + | – | ||
O173 | + | + | – | + | – | ||
ST542 | 2 | O157 | + | + | + | + | – |
O157 | + | + | + | + | – | ||
ST602 | 13 | O34 | + | + | – | + | – |
O34 | + | + | – | + | – | ||
O55 | + | + | – | + | – | ||
O75 | + | + | – | + | – | ||
O91 | + | – | – | + | + | ||
O91 | + | – | – | + | – | ||
O91 | + | – | – | + | – | ||
O91 | + | – | – | + | – | ||
O91 | + | – | – | + | + | ||
O97 | + | + | – | + | – | ||
O118 | + | + | – | + | + | ||
O149 | + | + | – | + | – | ||
Nontypable | + | + | – | + | – | ||
ST793 | 1 | O3 | – | + | + | – | – |
ST813 | 4 | O34 | + | + | – | – | – |
O92 | + | + | – | + | – | ||
O97 | + | + | – | + | – | ||
O100 | + | + | – | + | – | ||
ST1294 | 8 | O91 | + | – | – | + | + |
O100 | + | + | – | + | + | ||
O110 | + | + | – | + | + | ||
O149 | + | + | – | + | – | ||
Nontypable | + | + | – | + | – | ||
Nontypable | + | + | – | + | – | ||
Autoagglutination | – | + | – | – | – | ||
Autoagglutination | – | + | – | – | – | ||
ST1623 | 6 | O42 | + | + | – | + | – |
O54 | + | + | – | + | – | ||
O78 | – | + | – | + | + | ||
O92 | + | + | – | + | + | ||
O92 | + | + | – | + | + | ||
O149 | – | + | – | – | – | ||
ST1721 | 2 | O9 | + | + | – | + | + |
O167 | + | + | – | + | + |