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.
Helicobacter pylori (H pylori) is the name of a bacteria that can cause peptic ulcers. It can infect the stomach lining, dissolving the mucus film that protects it from the highly acidic stomach contents.This causes a burning pain in the stomach. Helicobacter pylori is the most common human bacterial infection.. pylori infection is a common cause of peptic ulcer disease in the United States. Peptic ulcer is a localized area of erosion occurring in the stomach or duodenal (the beginning of the small intestine) lining, resulting in abdominal pain, possible bleeding, and other gastrointestinal symptoms.