Count | |
| 9 | |
| 13 | |
| 2 | |
| 2 | |
| 3 | |
| 3 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
Escherichia coli/isolation & purification/*pathogenicity/physiology | 1 |
| 1 | |
| 1 | |
| 1 | |
Escherichia coli/chemistry/metabolism/pathogenicity/*physiology | 1 |
| 34 | |
| 498 | |
| 1 | |
| 8 | |
| 2 | |
| 36 | |
| 1 | |
| 1 | |
| 533 | |
| 9 | |
| 8 | |
| 1 | |
| 1 | |
| 27 | |
| 83 | |
| 17 | |
| 69 | |
| 5 | |
| 1 | |
| 66 | |
| 16 | |
| 273 | |
| 14 | |
| 225 | |
| 2 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 3 | |
| 6 | |
| 2 | |
| 2 | |
| 11 | |
| 2 | |
| 4 | |
| 2 | |
| 1 | |
| 2 | |
| 11 | |
| 4 | |
| 3 | |
| 1 | |
| 11 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 5 | |
| 3 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 3 | |
| 1 | |
| 6 | |
| 1 | |
| 1 | |
| 2 | |
| 1 | |
| 1 | |
| 1 | |
| 2 | |
| 1 | |
| 5 | |
| 1 | |
| 1 | |
| 58 | |
| 3 | |
| 1 | |
| 1 | |