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Figure 2. Populations (log CFU/cm2) of E. coli O157:H7 on fresh cut lettuce treated with Control (black) or 8.3 log PFU/ml bacteriophage EcoShield™ (white) for 2 min and stored at 4°C for 7 d. Different capital letters at the top of each bar indicate significant (p < 0.05) differences between control (PBS) and lytic bacteriophages treatment (EcoShield™) within each day.
