In discussions with FSCAN owners, some users are concerned if they test positive for a known organism. Many organisms are quite common and you will probably find them if you scan for their frequencies. Heliocobacter pylori is a good example. Most people have this organism is their bodies in small quantities and do not have ulcers, even though this organism causes ulcers.
However, if you scan and find this organism and then eliminate it, you remove virtually all of the risk of getting an ulcer. If every one did this, it could eliminate more than 50% of the ulcers in the population, maybe close to 100%.
How bacteria induce stomach ulcers: Bacterial cytotoxin induces the epithelial cell detachment that leads to ulcer formation. By Jonathan Weitzman
Helicobacter pylori is a Gram-positive bacterium that colonizes the gut mucosa and can induce gastric ulcers. In an Advanced Online Publication in Nature Genetics, Akihiro Fujikawa and colleagues report how the H. pylori cytotoxin VacA causes ulcer formation (Nature Genetics, DOI:10.1038/ng1112, 24 February, 2003).