TABLE 4.
Detection of virulence genes in E. coli by MPCR
| Serotype (no. of strains) of pathogroup ETEC | No. of strains detected by:
|
|||||||
|---|---|---|---|---|---|---|---|---|
| MPCR targeting
|
Single-gene-specific PCR targeting
|
|||||||
| uidA | estla | estlb | elt | astA | lifA/efa1 | ent | hly | |
| O6:H− (1) | 1 | 1 | ||||||
| O25:H42 (1) | 1 | 1 | ||||||
| O114:H− (1) | 1 | 1 | ||||||
| O128:H− (2) | 2 | 2 | ||||||
| O128:H21 (2) | 2 | 2 | ||||||
| O147:H19:K88(1) | 1 | 1 | 1 | |||||
| O148:H28 (1) | 1 | 1 | 1 | |||||
| O149:H− (1) | 1 | 1 | 1 | |||||
| O149:K88 (1) | 1 | 1 | 1 | 1 (α-hly) | ||||
| O159:H21 (1) | 1 | 1 | ||||||
| O167:H(rough) (1) | 1 | 1 | ||||||
| O(rough):H− (1) | 1 | 1 | 1 | 1 (α-hly) | ||||
| O(rough):H21 (4) | 4 | 4 | ||||||
| O(rough):H(NT)a (1) | 1 | 1 | 1 | |||||
| O(NT):H− (1) | 1 | 1 | ||||||
| O(NT):H18 (1) | 1 | |||||||
a
NT, nontypeable.