Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

NLM Logo

Helicobacter pylori MeSH Descriptor Data 2026


MeSH Heading
Helicobacter pylori
Tree Number(s)
B03.440.500.550
B03.660.150.235.500.250.550
Unique ID
D016480
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D016480
Annotation
infection: coordinate with HELICOBACTER INFECTIONS
Scope Note
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).
Entry Term(s)
Campylobacter pylori
Campylobacter pylori subsp. pylori
Campylobacter pyloridis
Helicobacter nemestrinae
Registry Numbers
txid210
NLM Classification #
QW 154
Previous Indexing
Campylobacter (1984-1990)
Public MeSH Note
91
History Note
91
Date Introduced
1991/01/01
Last Updated
2020/01/28
Helicobacter pylori Preferred
page delivered in 0.145s