Phage cocktail against E. coli 0157

A method of controlling bacterial contamination in a food- or feed environment or in food- or feed processing equipment or food- or feed containers or in a food- or feed product comprising contacting a composition with the food- or feed environment or the food- or feed processing equipment or the food- or feed containers or the food- or feed product, wherein the composition has lytic activity against E.coli O157 and comprises a first bacteriophage and a second bacteriophage, wherein:

• the first bacteriophage has a genome with at least 98% sequence identity with SEQ ID NO:
• 1 over the entire length of SEQ ID NO:
• 1, or
• the second bacteriophage has a genome with at least 98% sequence identity with SEQ ID NO:
• 2 over the entire length of SEQ ID NO:
• 2,
• and wherein the first bacteriophage comprises:
• a tail spike protein that has at least 97% sequence identity with SEQ ID NO:
• 3 over the entire length of SEQ ID NO:
• 3 or has at least 97% sequence identity with SEQ ID NO:
• 4 over the entire length of SEQ ID NO:
• 4, and
• a tail spike protein that has at least 97% sequence identity with SEQ ID NO:
• 5 over the entire length of SEQ ID NO:
• 5.