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تسجيل

General Characteristics of Helicobacter

المؤلف:  Patricia M. Tille, PhD, MLS(ASCP)

المصدر:  Bailey & Scotts Diagnostic Microbiology

الجزء والصفحة:  13th Edition , p419-420

2026-05-26

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In 1983, spiral-shaped organisms resembling Campylobacter spp. were isolated from the human stomach; these organisms were named Campylobacter pylori. Based on many studies, the genus Helicobacter was established in 1989 and C. pylori was renamed Helicobacter pylori. Approximately 32 species are included in this genus, the majority of which colonize mammalian stomachs or intestines. The genus Helicobacter consists of curved, microaerophilic, gram-negative rods, the majority of species exhibiting urease activity. Humans isolates include H. pylori, H. cinaedi, H. fennelliae, H. heilmannii (formerly known as Gastrospirillum hominis), H. westmeadii, H. canis, H. canadensis sp. nov., H. pullorum, and “H. rappini” (formerly known as “Flexispira rappini”). Human pathogens discussed here include H. pylori, H. cinaedi, and H. fennelliae.