TABLE 2.
Frequency of BIMs appearing after 48 h exposure to each phagea
| Strain or phage | Frequency of BIMs appearing after 48-h exposure to: |
||||
|---|---|---|---|---|---|
| K | Sb-1 | Intesti13 | Stab21 | Romulus | |
| ATCC 19685 | 2.2 × 10−8 | <2 × 10−8 | 2.2 × 10−8 | 3.8 × 10−6 | 1.7 × 10−6 |
| D712 | 1.5 × 10−7 | 1.2 × 10−7 | ND | 6.3 × 10−6 | NA |
| 8015 | 8.3 × 10−8 | 1.3 × 10−7 | 4.2 × 10−8 | 2.1 × 10−7 | NA |
| 306 | 4.2 × 10−8 | 2.3 × 10−7 | 5.2 × 10−7 | 4.6 × 10−7 | <2 × 10−8 |
a
In most pairings, a 10-fold excess of phages (or more) was used. Romulus plates were used a 2- to 5-fold excess. If no BIMs were observed, the frequency is shown as being less than the limit of detection for that strain based on the total number of cells that were plated. NA, the strain was not sensitive to the phage; ND, not determined.