Table 3.
E. coli O157:H7 NCTC 12900 strain Phage | Wild type | 12900Rcev1 (CEV1 survivor) | 12900Rcev2 (CEV2 survivor) |
CEV1 | + | − | + |
CEV2 | + | + | − |
T4* | − | − | − |
The bacteria are survivors of single-phage infections (MOI∼100). Susceptibility to phages was determined using our standard spot test method. (+, sensitive to phage infection; −, resistant to phage infection; *used as a control, it is incapable of infecting E. coli O157:H7 strains).