TABLE 2.
Results of svg ORF PCR specific for highly virulent B21/ST29 E. coli strains, applied to E. coli collections and other Enterobacteriaceae species
| E. coli strain and phylogenetic group (subgroup) (reference) | No. of strains | svg ORF-positive PCR |
|---|---|---|
| ECOR strains (n = 72) (13) | ||
| A | 25 | 0 |
| B1 | 16 | 0 |
| B2 (B21) | 2 | 2 |
| B2 (other than B21) | 13 | 0 |
| D | 12 | 0 |
| E | 4 | 0 |
| Meningitis strains (n = 132) (7) | ||
| A | 11 | 0 |
| B1 | 2 | 0 |
| B2 (B21) | 69 | 69 |
| B2 (other than B21) | 30 | 0 |
| D | 20 | 0 |
| Young infant urinary tract infection strains (n = 36) (9) | ||
| A | 1 | 0 |
| B1 | 1 | 0 |
| B2 (B21) | 7 | 7 |
| B2 (other than B21) | 25 | 0 |
| D | 2 | 0 |
| Adult uropathogenic strains (n = 100) (5) | ||
| A | 11 | 0 |
| B1 | 1 | 0 |
| B2 (B21) | 19 | 19 |
| B2 (other than B21) | 42 | 0 |
| D | 27 | 0 |
| APEC strains (n = 13) | ||
| B2 (B21) | 8 | 8 |
| D | 5 | 0 |
| Other Enterobacteriaceae species (n = 52) | ||
| Shigella (S. flexneri, n = 2; S. sonnei, n = 3) | 5 | 0 |
| Salmonella enterica | 6 | 0 |
| Enterobacter (E. cloacae, n = 5; E. aerogenes, n = 1) | 6 | 0 |
| Escherichia (E. hermanii, n = 1; E. vulneris, n = 1) | 2 | 0 |
| Hafnia alvei | 2 | 0 |
| Yersinia (Y. pseudotuberculosis, n = 3; Y. enterocolitica, n = 1) | 4 | 0 |
| Serratia (S. liquefaciens, n = 1; S. marcescens, n = 2) | 3 | 0 |
| Proteus mirabilis | 4 | 0 |
| Providencia stuartii | 1 | 0 |
| Morganella morganii | 1 | 0 |
| Citrobacter (C. freundii, n = 3; C. koseri, n = 3; C. youngae, n = 1) | 7 | 0 |
| Klebsiella (K. pneumoniae, n = 4; K. oxytoca, n = 3) | 7 | 0 |
| Raoultella terrigena | 1 | 0 |
| Leclercia adecarboxylata | 1 | 0 |
| Pantoea agglomerans | 2 | 0 |