Helicobacter pylori has been shown to be the unidentified curved bacillus that was observed by Warren and Marshall in close contact with gastric epithelium in biopsy studies of patients suffering from chronic gastritis. Although the source of H.pylori infection is not known, the evidence is quite convincing that the bacillus can cause acute gastritis and may lead to chronic gastritis. Sethi et al has reported that H.pylori was present in 91% of patients with chronic superficial gastritis. Marshall determined that H pylori was present in 90% of duodenal ulcer and 70% of gastric ulcer patients.

The Biorex Diagnostics Helicobacter Pylori kits are intended for use in the quantitative determination of Anti H pylori specific antibodies of IgA, IgG and IgM type in human serum or plasma by Microplate Enzyme Immunoassay.