Table 2.
Results of spot tests on 41 E. coli strains using commercial bacteriophage cocktails.
| Strain number | Commercial bacteriophage cocktails |
||||
|---|---|---|---|---|---|
| Pyo |
|||||
| Before adaptation | After adaptation | Intesti | Ses | Enko | |
| 39 | CL | CL | CL | OL | OL |
| 7 | IP | IP | IP | OL | OL |
| 20 | IP | OL | IP | OL | OL |
| 6,16 | IP | SCL | IP | OL | OL |
| 9 | OL | CL | OL | OL | OL |
| 1 | OL | CL | OL | SCL | OL |
| 23 | OL | OL | CL | OL | OL |
| 12,21,33 | OL | OL | OL | CL | CL |
| 31 | OL | OL | OL | IP | SCL |
| 4,8,14,24,26,30,34 | OL | OL | OL | OL | OL |
| 40 | OL | OL | OL | SCL | OL |
| 28 | OL | OL | SCL | CL | CL |
| 27,32 | OL | OL | SCL | SCL | SCL |
| 17 | OL | OL | SCL | OL | OL |
| 38 | OL | SCL | CL | SCL | SCL |
| 19 | OL | SCL | OL | OL | OL |
| 3 | R | CL | OL | IP | OL |
| 18,36,37 | R | CL | OL | OL | OL |
| 25 | R | CL | R | R | OL |
| 15 | R | CL | R | SCL | OL |
| 22 | R | CL | R | SCL | SCL |
| 2 | R | CL | SCL | SCL | CL |
| 5 | R | IP | R | R | R |
| 10 | R | IP | SCL | SCL | SCL |
| 11 | R | R | R | OL | SCL |
| 35 | R | R | R | R | R |
| 41 | R | R | SCL | SCL | CL |
| 29 | R | SCL | R | R | R |
| 13 | SCL | SCL | SCL | CL | CL |
| Lytic activity | 65.9% | 92.7% | 82.9% | 90.2% | 92.7% |
CL, confluent lysis; SCL, semi-confluent lysis; OL, overgrown lysis; IP, individual plaques; R, resistant. Twenty-nine unique bacteriophage resistance/sensitivity profiles can be distinguished.