Helicobacter pylori

A spiral bacterium active as a human gastric pathogen. It is a gram-negative, urease-positive, curved or slightly spiral organism initially isolated in 1982 from patients with lesions of gastritis or peptic ulcers in Western Australia. Helicobacter pylori was originally classified in the genus CAMPYLOBACTER, but RNA sequencing, cellular fatty acid profiles, growth patterns, and other taxonomic characteristics indicate that the micro-organism should be included in the genus HELICOBACTER. It has been officially transferred to Helicobacter gen. nov. (see Int J Syst Bacteriol 1989 Oct;39(4):297-405).

Year introduced: 1991

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Tree Number(s): B03.440.500.550, B03.660.150.235.500.250.550

MeSH Unique ID: D016480

Registry Number: txid210

Entry Terms:

• Campylobacter pylori subsp. pylori
• Campylobacter pyloridis
• Campylobacter pylori
• Helicobacter nemestrinae

Previous Indexing:

• Campylobacter (1984-1990)

All MeSH Categories
Organisms Category
Bacteria
Gram-Negative Bacteria
Helicobacter
Helicobacter pylori

All MeSH Categories
Organisms Category
Bacteria
Proteobacteria
Epsilonproteobacteria
Campylobacterales
Helicobacteraceae
Helicobacter
Helicobacter pylori