Patent ID: 8021657

Claim:
A method of preventing or treating an infection caused by pathogenic Enteriobacteriaceae in humans or animals, the method comprising: administering to an individual an effective amount of a phage preparation to prevent or treat the infection in the human or animal, the phage preparation comprising a broad host range isolated phage selected from the Myoviridae family having a genome size of 170 kb and lytic activity against pathogenic E. coli or Salmonella strains, wherein the isolated phage is virulent and safe to administer to a human or animal, wherein the isolated phage is an obligate virulent phage with a contractile tail and wherein the isolated phage is selected from the group consisting of CNCM I-2763 (NCC-JS10, renamed NCC-JS4), CNCM I-2764 (NCC-JS35, renamed NCC-JS94.1), CNCM I-2765 (NCC-JS1.4, renamed NCC-JSD.1), CNCM I-2766 (NCC-JSF, renamed NCC-JSL.6) and combinations thereof.