Overview of Helicobacter pylori Infection: Clinical Features, Treatment, and Nutritional Aspects Abstract: Helicobacter pylori (H. pylori) is a 0.5–1 m wide, 2–4 m long, short helical, S-shaped Gramnegative microorganism. It is mostly found in the pyloric region of the stomach and causes chronic gastric infection. It is estimated that these bacteria infect more than half...