| Serotype | Source | Condition | Country | Date Reported | Authors | Brief Reference |
| O1.H- | Human | Healthy | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O1.H- | Human | HUS | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O1.H- | Human | HUS | Czech Republic | 1994 | Bielaszewska et al. | RAinVT prod.-E.coli infections 37-40 |
| O1.H- | Human | BD | Czech Republic | 1994 | Bielaszewska et al. | RAinVT prod.-E.coli infections 37-40 |
| O1.H7 | Human | D | Germany | 1996 | Huppertz et al. | J.Pediat. 128:341-346 |
| O1.H20 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O2.H- | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O2.H- | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O2.H1 | Human | D | Thailand | 1990 | Bettelheim et al. | J.clin.Microbiol. 28:293-295 |
| O2.H5 | Human | UC | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O2.H5 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O2.H6 | Human | HUS | Belgium | 1990 | Pierard et al. | Europ.J.clin.Micro.&Infect.Dis. 9:198-201 |
| O2.H6 | Human | HUS | ? | 1992 | Willshaw et al. | J.infect.Dis. 166:797-802 |
| O2.H7 | Human | BD | Czech Republic | 1994 | Bielaszewska et al. | RAinVT prod.-E.coli infections 37-40 |
| O2.H7 | Calf | D | Thailand | 1988 | Smith et al. | J.gen.Microbiol. 134:829-834 |
| O2.H25 | Cattle | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O2.H27 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O2.H29 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O2.H29 | Pork | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
| O2.H29 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O2.H29 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O2.H39 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O4.H- | Human | HC | U.S.A. | 1988 | Tzipori et al. | Gastroenterology 94:590-597 |
| O4.H- | Cattle | Healthy | Germany/Belgium | 1996 | Wieler et al. | J.clin.Microbiol. 34: 2980-2984 |
| O4.H5 | Human | HUS | Australia | 1988 | Gunzburg et al. | Med.J.Aust. 149:54-55 |
| O4.H10 | Human | HC | United Kingdom | 1992 | Willshaw et al. | J.infect.Dis. 166:797-802 |
| O4.H21 | Beef | - | Thailand | 1990 | Suthienkul et al. | Appl.Env.Microbiol. 56:1135-1139 |
| O4.H25 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O5.H- | Human | HUS | ? | 1989 | Dorn et al. | Epidemiol.Infect. 103:83-95 |
| O5.H- | Human | Healthy | Canada | 1994 | Wilson et al. | RAinVT prod.-E.coli infections 61-64 |
| O5.H- | Lamb | Healthy | ? | 1989 | Dorn et al. | Epidemiol.Infect. 103:83-95 |
| O5.H- | Cattle | HC | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O5.H- | Calf | Dys. | United Kingdom | 1988 | Tzipori et al. | Gastroenterology 94:590-597 |
| O5.H- | Beef | - | United Kingdom | 1993 | Willshaw et al. | J.Appl.Bact. 75:420-426 |
| O5.H- | Sheep | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O5.H- | Goats | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O5.H- | Human | HUS | United Kingdom | 1992 | Willshaw et al. | J.infect.Dis. 166:797-802 |
| O5.H- | Human | HUS | Czech Republic | 1994 | Bielaszewska et al. | RAinVT prod.-E.coli infections 37-40 |
| O5.H- | Calves | D | U.S.A. | 1993 | Dorn et al. | Vet.Microbiol. 36:149-159 |
| O5.H- | Calf | D | ? | 1985 | Hall et al. | Vet.Pathol. 25:205-210 |
| O5.H- | Human | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O5.H- | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O5.H- | Cattle | Healthy | Germany/Belgium | 1996 | Wieler et al. | J.clin.Microbiol. 34: 2980-2984 |
| O5.H10 | Goats | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O5.H11 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O6.K13.H1 | Cats | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O6.H2 | Human | BD/HUS | United Kingdom | 1993 | Thomas et al. | Epidemiol.Infect. 110:591-600 |
| O6.H3 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O6.K53.H7 | Pigs | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O6.H10 | Beef | - | United Kingdom | 1993 | Willshaw et al. | J.Appl.Bact. 75:420-426 |
| O6.H10 | Sheep | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O6.H28 | Human | D | Thailand | 1990 | Bettelheim et al. | J.clin.Microbiol. 28:293-295 |
| O6.H34 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O6.H34 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O6.H34 | Pork | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
| O6.H34 | Beef | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
| O6.H34 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O6.H? | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O7.H4 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O7.H4 | Human | Healthy | Canada | 1994 | Wilson et al. | RAinVT prod.-E.coli infections 61-64 |
| O7.H4 | Cattle | Healthy | Canada | 1994 | Wilson et al. | RAinVT prod.-E.coli infections 61-64 |
| O7.H4 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O7.H4 | Human | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O7.H4 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O8.H2 | Cattle | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O8.H2 | Pork | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
| O8.H9 | Pork | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
| O8.H9 | Beef | - | United Kingdom | 1993 | Willshaw et al. | J.Appl.Bact. 75:420-426 |
| O8.H9 | Calf | D | ? | 1988 | Smith et al. | J.gen.Microbiol. 134:829-834 |
| O8.H19 | Pork | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
| O8.H19 | Beef | - | United Kingdom | 1993 | Willshaw et al. | J.Appl.Bact. 75:420-426 |
| O8.H19 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O8.H19 | Cattle | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O8.H19 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O8.H19 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O8.H25 | Cattle | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O8.H30 | Beef | - | United Kingdom | 1993 | Willshaw et al. | J.Appl.Bact. 75:420-426 |
| O8.H35 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O9.H- | Human | HUS | United Kingdom | 1996 | Thomas et al. | Epidemiol. Infect. 117:1-10 |
| O9.H- | Pigs | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O9.H- | Human | D | Germany | 1996 | Huppertz et al. | J.Pediat. 128:341-346 |
| O10.H- | Cattle | Healthy | U.S.A. | 1991 | Wells et al. | J.clin.Microbiol. 29:985-989 |
| O11.H8 | Cows | Healthy | Thailand | 1990 | Suthienkul et al. | Appl.Env.Microbiol. 56:1135-1139 |
| O15.H- | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O15.H11 | Cattle | Healthy | Germany/Belgium | 1996 | Wieler et al. | J.clin.Microbiol. 34: 2980-2984 |
| O15.H27 | Cattle | Healthy | U.S.A. | 1991 | Wells et al. | J.clin.Microbiol. 29:985-989 |
| O15.H27 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O15.H27 | Beef | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
| O17.H- | Dogs | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O17,77.H18 | Cattle | Healthy | Germany/Belgium | 1996 | Wieler et al. | J.clin.Microbiol. 34: 2980-2984 |
| O18.H- | Human | D | Japan | 1994 | Kudoh et al. | RAinVT prod.-E.coli infections 53-56 |
| O18.H11 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O18.H11 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O18.H? | Human | HUS | Czech Republic | 1994 | Bielaszewska et al. | RAinVT prod.-E.coli infections 37-40 |
| O20.H- | Human | Healthy | United Kingdom | 1982 | Bettelheim & Wilson | J.Hyg., Camb. 88:121-123 |
| O20.K38.H19 | Sheep | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O21.K5.H14 | Cats | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O22.H2 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O22.H8 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O22.H8 | Beef | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
Abbreviations
| BD | Bloody diarrhoea | |
| BE | Bowel oedema | |
| D | Diarrhoea | |
| Dys | Dysentery | |
| EC | Enterocolitis | |
| HC | Haemorrhagic colitis | |
| HUS | Haemolytic uraemic syndrome | |
| NE | Necrotizing enteritis | |
| No D | No diarrhoea | |
| SIDS | Sudden infant death syndrome | |
| UC | Ulcerative colitis |
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