Table 1.

Primer and probe sequences used in this study [15].

Reference Gene, Primer/Probe	Sequence 5′-3′
stx1-F	TTT GTY ACT GTS ACA GCW GAA GCY TTA CG
stx1-R	CCC CAG TTC ARW GTR AGR TCM ACR TC
stx1-P	CTG GAT GAT CTC AGT GGG CGT TCT TAT GTA A
stx2-F	TTT GTY ACT GTS ACA GCW GAA GCY TTA CG
stx2-R	CCC CAG TTC ARW GTR AGR TCM ACR TC
stx2 -P	TCG TCA GGC ACT GTC TGA AAC TGC TCC
In the sequences: Y is (C, T), S is (C, G), W is (A, T), R is (A, G), M is (A, C).