Table 1.

Primer sequences used for real-time polymerase chain reaction.

Gene	Forward	Reverse
CagA	5′-GAGTCATAATGGCATAGAACCTGAA-3′	5′-TTGTGCAAGAAATTCCATGAAA-3′
VacA	5′-CTCCAGAAGGCACACCAATAA-3′	5′-TGGCTTCCACTTCCCCATTAA-3′
UreA	5′-CGTGGCAAGCATGATCCAT-3′	5′-GGGTATGCACGGTTACGAGTTT-3′
16s	5′-GGAGTACGGTCGCAAGATTAAA-3′	5′-CTAGCGGATTCTCTCAATGTCAA-3′