👉 Heliobacterium is a genus of bacteria that belongs to the family Helicobacteria, which also includes other similar genera such as Helicobacter and Escherichia. They are characterized by their ability to ferment lactose through fermentation processes called glycolysis. H. pylori (H. pylori) is often referred to as "the stinger" because of its unique appearance, resembling a stick or a spear, which helps it in invading the stomach lining and causing