If one is talking about interstate business, a company that is in one state provides its products and services to a customer in another state or several states. Intrastate. Intrastate refers to anything that pertains to a single state and does not require crossing over the boundaries of a single state.
H. pylori was first discovered in the stomachs of patients with gastritis and ulcers in 1982 by Drs. Barry Marshall and Robin Warren of Perth, Australia. At the time, the conventional thinking was that no bacterium could live in the acid environment of the human stomach.
Facts and definition of Helicobacter Pylori (H. pylori) 1  H. pylori is type of bacteria that infects about 50% of the population. 2  H. pylori infection is associated with inflammation of the stomach lining (gastritis), and duodenum (part of the small intestine).  H. pylori bacteria burrow into the cells of the stomach lining and cause gastritis.