Table 1.
Genomic characteristics of EPEC O157:non-H7 strains.
| Strain | Serotype | Source | Origin | EPEC | MLSTa) | GUD | SOR | eae | tir | bfpA | perA |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ARS4.2123 | O157:H16 | Water | USA | T | 79 | + | + | +(ε) | + | +(β1) | +(β2) |
| RN587/1 | O157:H8 | Human | Brazil | T | 725 | + | ND | +(α) | + | +(β6) | +(β2) |
| C844–97 | O157:H45 | Human | Japan | A | 725 | + | ND | +(α) | + | − | − |
| C639–08 | O157:H45 | Human | Denmark | A | 725 | + | ND | +(α) | + | − | − |
| TW00353 | O157:H45 | Human | USA | A | 2 | + | + | +(ε) | + | − | − |
| TW15901 | O157:H16 | Meat | France | A | 10 | + | + | +(ε) | + | − | − |
| N1 | O157:H29 | Meat | Unknown | NA | 2 | + | + | − | − | − | − |
| T22 | O157:H43 | Human | Hungary | NA | 155 | + | ND | − | − | − | − |
| 3006 | O157:H16 | Human | USA | NA | 6 | + | − | − | − | − | − |
| 7798 | O157:H39 | Human | Argentina | A | 2 | + | − | +(κ/δ) | + | − | − |
O157:non-H7 strains were genotyped for prevalence and plasticity in established EHEC- and EPEC-associated phylogenetic and virulence markers (Farmer and Davis 1985; Adu-Bobie et al. 1998; Blank et al. 2000; Okeke et al. 2001; Yoshitomi et al. 2003; Contreras et al. 2010). MLSTa), Achtman ST7 MLST approach (Wirth et al. 2006); NA, Not applicable; SOR, sorbitol fermentation; GUD, β-glucourinidase activity; T, typical EPEC; A, atypical EPEC; ND, No data available.