Table 1.

Primers used in this study

Primer Target	Oligonucleotide Sequence (5′-3′)	Amplicon Size (bp)	Target Gene	TM °C	References
toxA-F	TGCTGCACTACTCCATGGTC	190	toxA	53.8	(24)
toxA-R	ATCGGTACCAGCCAGTTCAG			53.8
exoU- F	GCTAAGGCTTGGCGGAATA	204	exoU	51.1	(10)
exoU-R	AGATCACACCCAGCGGTAAC			53.8
exoS- F	ATGTCAGCGGGATATCGAAC	230	exoS	51.1	(10)
exoS-R	CAGGCGTACATCCTGTTCCT			53.8