| O:H Serotype | Source | Condition | Country | Date Reported | reference |
| O1:H- | Human | H | Germany | 1992 | [104] |
| O1:H- | Human | HUS | Germany | 1992 | [104] |
| O1:H- | Human | HUS | Czech Republic | 1994 | [105] |
| O8:H16 | Cattle | H | Argentina | 2010 | [106] |
| O111:H8 | Cattle | HC | Canada | 1994 | [107] |
| O111:H8 | Human | D | Asia | 1996 | [108] |
| O128:H2 | Human | H | Australia | 2012 | [109] |
| O174:H2 | Human | BD | Switzerland | 2011 | [110] |