S100A8 and gastric cancer: Although the high rate of East Asian-type cagA, intact cagPAI, virulent vacA genotypes, and the intact long-type dupA in H. pylori was reported in a littoral region of Northeast China with the high risk of gastric cancer,9 there is currently no report about the relationship between virulence marker and genetic characterization of antimicrobial resistant strains of H. pylori.