Microbiology-PTM-OMA_Modules_1-5

Panel Requirements Example 2: E. coli O157:H7 screening method = 50 inclusivity strains; 30  exclusivity strains

Inclusivity: 50 strains of E. coli O157:H7 including at least 10 strains of E. coli  O157:NM (if claimed)

Exclusivity:Other serotypes of pathogenic E. coli  (regulated and non‐regulated) Non‐pathogenic E. coli  (1 strain) Other Escherichia species (1 strain per species)

Other coliforms (1 strain per species) Non‐coliforms (1 strain per species)