Table 2.
Host-source distributions from the C3CGFb for each of the clades observed in raccoon and swine manure pit isolates.
| Clade | CGF subtypes | C3CGFdb source distribution | This study | Total isolates | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Human clinical | Cattle | Poultry | Other | Swine | Wild bird | Wild mammals | Water | Raccoon | Manure pit | |||
| A | 38 | 8 | 2 | 22 | 0 | 0 | 0 | 6 | 121 | 302 | 0 | 461 |
| B | 29 | 306 | 171 | 1,163 | 33 | 5 | 11 | 15 | 237 | 177 | 0 | 2,118 |
| C | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 84 | 0 | 85 |
| D | 6 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 5 | 3 | 13 |
| E | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| F | 18 | 60 | 107 | 319 | 16 | 104 | 2 | 0 | 19 | 1 | 26 | 654 |
| G | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 |
| H | 7 | 443 | 123 | 731 | 15 | 1 | 0 | 2 | 5 | 9 | 0 | 1,329 |
Clade C was exclusively composed of raccoon isolates, while clade A was largely of raccoon and environmental water origin. Clades B and H showed broad source distributions and have been associated with “generalist” lineages. Clade G, a C. coli group, also showed a broad source distribution and included all C. coli swine lagoon isolates.