RoC Review of Helicobacter pylori (H. pylori): Chronic Infection
Substance Overview
Listing Status: Topic selected for evaluation
Primary Uses or Exposures
- A gram negative, multi-flagellated bacterium that colonizes the stomach and causes peptic ulcer.
- Spread by person-to-person contact especially among family members or in crowded living conditions or poor sanitation/hygiene.
- Routes of exposure include: oral-oral, fecal-oral and possibly from contaminated water. The bacterium has been detected in surface, ground, and well water in the United States.
- Approximately 36% of the total population are infected with H. pylori.
Documents
| Date | Document |
|---|---|
| Jan 19, 2012 | Federal Register notice requesting public comment on nominated substances (PDF HTML) |
| Mar 15, 2016 | Concept Document |
| May 01, 2018 | Draft RoC Monograph |
| May 11, 2018 | Federal Register notice requesting public comment on the draft monograph (PDF HTML) |
| Sep 12, 2018 | Revised Draft RoC Monograph |
| Oct 26, 2018 | Final RoC Monograph |
Meetings & Events
| Date | Event | Event Type | Materials | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 11, 2016 | NTP Board of Scientific Counselors Meeting |
Board of Scientific Counselors |
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| Oct 09, 2018 | NTP Board of Scientific Counselors Meeting |
Board of Scientific Counselors |
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Supplemental materials for events, meetings, and workshops prior to 2016 have been archived. These archived materials frequently include presentations, background materials, and public comments. Email us or use our contact form to request a list or copy of archived materials for the following meeting.
Note on Accessibility: Persons with disabilities or using assistive technology may find some documents are not fully accessible. For assistance, email us or use our contact form and identify the documents/pages for which access is required. We will assist you in accessing the content of these files. NIEHS has helpful information on accessibility.