| Serotype | Source | Condition | Country | Date Reported | Authors | Brief Reference |
| O22.H8 | Beef | - | Thailand | 1990 | Suthienkul et al. | Appl.Env.Microbiol. 56:1135-1139 |
| O22.H8 | Beef | - | United Kingdom | 1993 | Willshaw et al. | J.Appl.Bact. 75:420-426 |
| O22.H8 | Cattle | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O22.H8 | Cattle | Healthy | U.S.A. | 1991 | Wells et al. | J.clin.Microbiol. 29:985-989 |
| O22.H8 | Human | HUS | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O22.H8 | Human | Healthy | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O22.H8 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O22.H8 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O22.H16 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O22.H16 | Cattle | D | Sri Lanka | 1993 | Tokhi et al. | Epidemiol.Infect. 110:197-208 |
| O22.H16 | Cattle | No D | Sri Lanka | 1993 | Tokhi et al. | Epidemiol.Infect. 110:197-208 |
| O22.H16 | Human | D | Thailand | 1990 | Bettelheim et al. | J.clin.Microbiol. 28:293-295 |
| O22.H40 | Cattle | Healthy | U.S.A. | 1991 | Wells et al. | J.clin.Microbiol. 29:985-989 |
| O22.H54 | Beef | - | United Kingdom | 1993 | Willshaw et al. | J.Appl.Bact. 75:420-426 |
| O23.H7 | Human | HC | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O23.H16 | Human | HC | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O26.H- | Human | D | United Kingdom | 1993 | Thomas et al. | Epidemiol.Infect. 110:591-600 |
| O26.H- | Human | HC | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O26.H- | Human | HUS | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O26.H- | Human | D | Japan | 1994 | Kudoh et al. | RAinVT prod.-E.coli infections 53-56 |
| O26.H- | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O26.H- | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O26.H- | Human | D | Italy | 1996 | Giammanco et al. | J.clin.Microbiol. 34:689-694 |
| O26.H- | Human | D | Germany | 1996 | Huppertz et al. | J.Pediat. 128:341-346 |
| O26.H- | Cattle | Healthy | Germany/Belgium | 1996 | Wieler et al. | J.clin.Microbiol. 34: 2980-2984 |
| O26.H11 | Cattle | HC | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O26.H11 | Milk | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
| O26.H11 | Human | BD | United Kingdom | 1996 | Thomas et al. | Epidemiol. Infect. 117:1-10 |
| O26.H11 | Human | D | Japan | 1994 | Kudoh et al. | RAinVT prod.-E.coli infections 53-56 |
| O26.H11 | Human | D | New Zealand | 1980 | Wilson and Bettelheim | Lancet i:201 |
| O26.H11 | Human | HUS | Australia | 1994 | Goldwater & Bettelheim | RAinVT prod.-E.coli infections 57-60 |
| O26.H11 | Human | D | Belgium | 1994 | Pierard et al. | RAinVT prod.-E.coli infections 33-36 |
| O26.H11 | Human | BD/HUS | United Kingdom | 1993 | Thomas et al. | Epidemiol.Infect. 110:591-600 |
| O26.H11 | Human | HUS | Czech Republic | 1994 | Bielaszewska et al. | RAinVT prod.-E.coli infections 37-40 |
| O26.H11 | Human | BD | Czech Republic | 1994 | Bielaszewska et al. | RAinVT prod.-E.coli infections 37-40 |
| O26.H11 | Human | D | Czech Republic | 1994 | Bielaszewska et al. | RAinVT prod.-E.coli infections 37-40 |
| O26.H11 | Human | D | United Kingdom | 1993 | Thomas et al. | Epidemiol.Infect. 110:591-600 |
| O26.H11 | Cattle | Healthy | U.S.A. | 1991 | Wells et al. | J.clin.Microbiol. 29:985-989 |
| O26.H11 | Calf | D | Great Britain | 1988 | Smith et al. | J.gen.Microbiol. 134:829-834 |
| O26.H11 | Calf | D | ? | 1988 | Smith et al. | J.gen.Microbiol. 134:829-834 |
| O26.H11 | Human | HUS | Great Britain | 1988 | Scotland et al. | J.med.Microbiol. 25:237-243 |
| O26.H11 | Calves | D | U.S.A. | 1993 | Dorn et al. | Vet.Microbiol. 36:149-159 |
| O26.H11 | Human | HC | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O26.H11 | Human | HUS | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O26.H11 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O26.H11 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O26.H11 | Human | D | Italy | 1996 | Giammanco et al. | J.clin.Microbiol. 34:689-694 |
| O26.H11 | Human | D | Germany | 1996 | Huppertz et al. | J.Pediat. 128:341-346 |
| O26.H21 | Human | D | New Zealand | 1980 | Wilson and Bettelheim | Lancet i:201 |
| O26.H21 | Cattle | Healthy | Germany/Belgium | 1996 | Wieler et al. | J.clin.Microbiol. 34: 2980-2984 |
| O26.H? | Cattle | Healthy | Germany/Belgium | 1996 | Wieler et al. | J.clin.Microbiol. 34: 2980-2984 |
| O29.H34 | Calf | D | ? | 1988 | Smith et al. | J.gen.Microbiol. 134:829-834 |
| O38.H21 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O38.H21 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O38.H21 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O39.H8 | Human | D | New Zealand | 1980 | Wilson and Bettelheim | Lancet i:201 |
| O39.H49 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O39.H49 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O40.H8 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O43.H2 | Milk | - | Canada | 1992 | Read et al. | Mol. Cell. Probes 6:153-161 |
| O43.H2 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O45.H- | Cattle | Healthy | U.S.A. | 1991 | Wells et al. | J.clin.Microbiol. 29:985-989 |
| O45.H- | Calves | D | U.S.A. | 1993 | Dorn et al. | Vet.Microbiol. 36:149-159 |
| O45.H- | Human | EC | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O45.H2 | Human | HC | U.S.A. | 1988 | Tzipori et al. | Gastroenterology 94:590-597 |
| O45.H2 | Cattle | Healthy | U.S.A. | 1991 | Wells et al. | J.clin.Microbiol. 29:985-989 |
| O45.H2,6,12 | Calves | D | U.S.A. | 1993 | Dorn et al. | Vet.Microbiol. 36:149-159 |
| O46.H- | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O46.H31 | Human | HUS | Australia | 1994 | Goldwater & Bettelheim | RAinVT prod.-E.coli infections 57-60 |
| O46.H38 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O46.H38 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O46.H38 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O46.H? | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O48.H21 | Human | HUS | Australia | 1994 | Goldwater & Bettelheim | RAinVT prod.-E.coli infections 57-60 |
| O49.H- | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O49.H- | Cattle | ? | Sri Lanka | 1993 | Tokhi et al. | Epidemiol.Infect. 110:197-208 |
| O49.H- | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O50.H- | Human | BD | Czech Republic | 1994 | Bielaszewska et al. | RAinVT prod.-E.coli infections 37-40 |
| O52.H25 | Human | D | Thailand | 1990 | Bettelheim et al. | J.clin.Microbiol. 28:293-295 |
| O53.H2 | Cattle | Healthy | Germany/Belgium | 1996 | Wieler et al. | J.clin.Microbiol. 34: 2980-2984 |
| O54.H21 | Chicken | - | Thailand | 1990 | Suthienkul et al. | Appl.Env.Microbiol. 56:1135-1139 |
| O55.H- | Human | HUS | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O55.H7 | Human | HUS | England | 1989 | Dorn et al. | Epidemiol.Infect. 103:83-95 |
| O55.H7 | Human | HUS | United Kingdom | 1992 | Willshaw et al. | J.infect.Dis. 166:797-802 |
| O55.H10 | Human | HUS | ? | 1989 | Dorn et al. | Epidemiol.Infect. 103:83-95 |
| O55.H10 | Human | HUS | United Kingdom | 1992 | Willshaw et al. | J.infect.Dis. 166:797-802 |
| O55.H17 | Calf | D | Sri Lanka | 1989 | Dorn et al. | Epidemiol.Infect. 103:83-95 |
| O65.H9 | Pig | D | ? | 1988 | Smith et al. | J.gen.Microbiol. 134:829-834 |
| O65.H16 | Human | D | Belgium | 1994 | Pierard et al. | RAinVT prod.-E.coli infections 33-36 |
| O68.H14 | Cows | Healthy | Thailand | 1990 | Suthienkul et al. | Appl.Env.Microbiol. 56:1135-1139 |
| O69.H- | Calves | D | U.S.A. | 1993 | Dorn et al. | Vet.Microbiol. 36:149-159 |
| O69.H11 | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O69.H11 | Cattle | Healthy | Canada | 1996 | Clarke et al. | J.infect.Dis. 174:1021-1027 |
| O69.H11 | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O71.H12 | Sheep | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O73.H34 | Human | HC | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
| O74.H? | Cattle | Healthy | Canada | 1994 | Clarke et al. | RAinVT prod.-E.coli infections 17-24 |
| O74.H- | Goats | Healthy | Germany | 1993 | Beutin et al. | J.clin.Microbiol. 31:2483-2488 |
| O74.H- | Cattle | Healthy | Canada | 1996 | Sandhu et al. | Epidemiol. Infect. 116:1-7 |
| O75.H5 | Human | HUS | Germany | 1992 | Bockemühl et al. | Zbl.Bakt. 276:189-95 |
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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