Table 2.
Distribution of virulence genes of E. coli isolates
| Serogroup | No. of | Virulence gene of E. coli | ||||||
|---|---|---|---|---|---|---|---|---|
| Animals | Strains* | eaeA | bfpA | stx1 | stx2 | st | lt | |
| O2 | 6 | 15 | + | - | - | - | - | - |
| O8 | 3 | 7 | + | - | - | - | - | - |
| O8 | 1 | 3 | - | - | - | - | - | + |
| O10 | 2 | 5 | + | - | - | - | - | - |
| O44 | 1 | 2 | - | + | - | - | - | - |
| O55 | 1 | 3 | + | + | - | - | - | - |
| O78 | 1 | 3 | - | - | - | - | + | - |
| O78 | 1 | 3 | - | - | - | - | + | + |
| O86 | 1 | 2 | + | - | + | - | - | - |
| O86 | 1 | 3 | + | - | - | - | - | - |
| O103 | 2 | 5 | + | + | - | - | - | - |
| O103 | 1 | 3 | + | - | - | - | - | - |
| O125 | 1 | 2 | - | - | + | - | - | - |
| O136 | 1 | 3 | - | - | - | - | + | - |
| O145 | 1 | 2 | + | - | + | - | - | - |
| O149 | 8 | 21 | + | - | - | - | - | - |
| O152 | 1 | 1 | + | - | - | - | - | - |
| O159 | 1 | 1 | - | - | - | - | + | + |
*
: Three E. coli strains were tested for one animal.