S100A8 and gastric cancer: A study was conducted at King Abdulaziz University Hospital in Jeddah between 2000 and 2014 to investigate the prevalence of babA2, cagA, iceA1, iceA2, vacA s1/s2, and vacA m1/m2 genotypes in H. pylori from gastric biopsy of patients with gastric cancer (n ═ 35) and gastric ulcer (n ═ 10) [58] The prevalence of babA2 (100%) was significantly higher in gastric cancer than in gastric ulcer (40%) samples.