Table 6.
Detection of EHEC according to different combinations of the genetic markers ureD, espV, espK, espN, Z2098, and espM1
| Gene associationa | No. of strains detected/total no. of strains (%) for: |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| EHEC of the top 7 | O103:H2 | O111:H8 | O121:H19 | O145:H28 | O157:H7 | O26:H11 | O45:H2 | Other EHECb (new emerging EHEC) | Total EHEC | |
| espK/espV | 276/277 (99.6) | 49/49 (100) | 51/51 (100) | 20/20 (100) | 30/30 (100) | 66/66 (100) | 43/44 (97.7) | 17/17 (100) | 59/63 (93.7) | 335/340 (98.5) |
| espK/ureD | 277/277 (100) | 49/49 (100) | 51/51 (100) | 20/20 (100) | 30/30 (100) | 66/66 (100) | 44/44 (100) | 17/17 (100) | 59/63 (93.7) | 336/340 (98.8) |
| espK/Z2098 | 275/277 (99.3) | 49/49 (100) | 51/51 (100) | 19/20 (95.0) | 30/30 (100) | 65/66 (98.5) | 44/44 (100) | 17/17 (100) | 59/63 (93.7) | 334/340 (98.2) |
| espN/Z2098 | 273/277 (98.6) | 49/49 (100) | 51/51 (100) | 17/20 (85.0) | 30/30 (100) | 65/66 (98.5) | 44/44 (100) | 17/17 (100) | 55/63 (87.3) | 328/340 (96.5) |
| espN/espM1 | 275/277 (99.3) | 47/49 (95.9) | 51/51 (100) | 20/20 (100) | 30/30 (100) | 66/66 (100) | 44/44 (100) | 17/17 (100) | 44/63 (69.8) | 319/340 (93.8) |
espK/espV, strains giving a positive result for espK and/or espV; espK/ureD, strains giving a positive result for espK and/or ureD; espK/Z2098, strains giving a positive result for Z2098 and/or espK; espN/Z2098, strains giving a positive result for espN and/or Z2098; espN/espM1, strains giving a positive result for espN and/or espM1.
O103:H25 (n = 2), O118:H16 (n = 4), O118:H2, O119:H25 (n = 5), O123:H11, O127:H8s, O145, O145:H25 (n = 5), O156:H21, O156:H25 (n = 11), O165:H25 (n = 2), O172:H25 (n = 2), O172:NM, O177 (n = 2), O177:H25, O182:H25, O3, O49:H16, O5 (n = 11), O55:H7 (n = 2), O76:H51, O84:H2, Ont:H2, Ont:H25 (n = 2), Or:H16, OX186:H2.