E. coli O157:H7 (EDL933), S. enterica serovar Typhimurium
(S. Typhimurium) and Enteritidis (S. Enteritidis), and L. monocytogenes
V7 strains from our collectionwere used. Modified EC (mEC) broth containing
novobiocin (Novo, 20 mg/ml) (mEC + Novo) and EHEC
(enterohemorrhagic E. coli) enrichment broth (EEB) were used for
E. coli O157:H7, Rappaport–Vassiliadis (RV) broth for S