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.
H. pylori can cause both peptic ulcers and stomach cancer, or it may cause no symptoms at all. It is a common gastrointestinal infection with 20 percent of people younger than thirty and 50 percent of individuals over sixty harboring the bacteria in their digestive tracts.