The food industry is mostly concerned with the “big four” food pathogens: L. monocytogenes, Salmonella, Campylobacter, and pathogenic Escherichia coli. Of these, only Listeria regularly colo- nizes production facilities and is thus able to contaminate food very late in the production process. Therefore, it is logical to introduce this bacteriophage treatment at the stage of the meat processing when this contamination is likely to take place