Table 2. Target gene and amplicon size (bp) for PCR used in this study

Foodborne pathogens	Target gene	Amplicon size (bp)
E. coli O157:H7	VT1 (stx1), VT2 (stx2)	637, 297
Salmonella spp.	invA	640
S. aureus	femA	264
L. monocytogenes	prfA	450