Table 1.

Primer sequences used in this study.

Gene	Primer sequence	Size (bp)
UreC (glmM)	Forward: 5′- AA GCTTTTAGGGTGTTAGGGGTTT -3′	294
	Reverse: 5′- AAGCTTACTTTCTAACACTAACGC -3′
cagA	Forward: 5′- AATACACCAACGCCTCCAAG -3′	400
	Reverse: 5′- TTGTTGGCGCTTGCTCTC -3′
iceA1	Forward: 5′- CGTTGGGTAAGCGTTACAGAATTT -3′	558
	Reverse: 5′- TCATTGTATATCCTATCATTACAAG -3′
iceA2	Forward: 5′- GTTGTCGTTGTTTTAATGAA -3′	120
	Reverse: 5′- GTCTTAAACCCCACGATTAAA -3′