Furthermore, itrelated erosive esophagitis in most cases (73.4%) of grades l and ll Savary-Miller.Although the group with erosive esophagitis serologic prevalence of positive antiCagAwas lower (74%) than without esophagitis (83%) and even lower in individuals with moresevere esophagitis (67%), the values ​​found were not statistically significant and itwas concluded that the presence or severity of erosive esophagitis are not associatedwith gastric HP serology anti-CagA positive or negative infection. The gene discussed is S100A8; the disease is infection.