Helicobacter pylori strain B274

Helicobacter pylori strain B274 is a microaerophilic, Gram-negative bacterium characterized by its spirilla shape and presence of flagella, which contributes to its mobility, although it is reported as non-motile in practical terms. This strain is typically found in a host-associated habitat, primarily residing in the gastric mucosa of Homo sapiens, but it has also been identified in various other hosts, including Gallus gallus (chickens), other Aves, Primates, Mammalia, and certain rodents. B274 has a single replicon and two membranes, with an optimal growth temperature of 37°C, classifying it as mesophilic. This bacterium is known for its significant pathogenicity in humans, being linked to several gastrointestinal diseases. Notably, H. pylori strain B274 is associated with chronic gastric inflammation, gastric ulcers, and various forms of gastric cancer, including adenocarcinoma and mucosa-associated lymphoid tissue (MALT) lymphoma. Other health impacts include GERD, gastritis, and functional dyspepsia, highlighting its role in a range of gastric conditions. The presence of H. pylori strain B274 in diverse hosts underscores its ecological adaptability and potential for cross-species transmission. Its association with severe gastric pathology, particularly in humans, points to the importance of understanding its mechanisms of pathogenicity and the implications for public health. This strain exemplifies the complex interplay between microbial life and host health, emphasizing the need for ongoing research into its effects and management in clinical settings.