Species ***Helicobacter* *typhlonius***

Name: Helicobacter typhlonius Franklin et al. 2002

Category: Species

Proposed as: sp. nov.

Etymology: ty.phlo.ni.us. Gr. neut. n. typhlon, cecum; L. masc. adj. suff. -ius, suffix used with the sense of belonging to; N.L. masc. adj. typhlonius, belonging to the cecum, site of original isolation

Gender: masculine

Type strain: ATCC BAA-367; CCUG 48335; MIT 97-6810

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF127912 Analyse FASTA

Effective publication: Franklin CL, Gorelick PL, Riley LK, Dewhirst FE, Livingston RS, Ward JM, Beckwith CS, Fox JG. Helicobacter typhlonius sp. nov., a Novel Murine Urease-Negative Helicobacter Species. J Clin Microbiol 2001; 39:3920-3926. 🇺🇸

IJSEM list: Anonymous. Validation list no. 85. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2002; 52:685-690.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 2

Notes:
- 😷 The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 2. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
- 🎓 Name mentioned 24 times in PubMed until 2026-06-11.
- 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.
- 🧍 Franklin et al. [2] described a disease syndrome characterized by proliferative typhlocolitis in C.B-17 scid/scid mice naturally and experimentally infected with a novel species of Helicobacter that was provisionally named "Helicobacter typhlonicus". ... In this report, we propose to use the more appropriate neo-Latin adjective "typhlonius" and formally name this novel helicobacter Helicobacter typhlonius". Publication: Judicial Commission. Judicial Opinion No. 81. Int J Syst Evol Microbiol 2008; 58:1755-1763.
- 🧍 Helicobacter typhlonius Franklin et al. 2002 was previously known as "Helicobacter typhlonicus" Franklin et al. 1999. Franklin et al. 2001 [1] wrote: "... Publication: Euzeby JP, Tindall BJ. Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an opinion. Int J Syst Evol Microbiol 2004; 54:293-301. 🇫🇷

Parent taxon: Helicobacter Goodwin et al. 1989

Assigned by: Franklin CL, Gorelick PL, Riley LK, Dewhirst FE, Livingston RS, Ward JM, Beckwith CS, Fox JG. Helicobacter typhlonius sp. nov., a Novel Murine Urease-Negative Helicobacter Species. J Clin Microbiol 2001; 39:3920-3926. 🇺🇸

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.784006Link copied to clipboard

Record number: 784006

This LPSN page was printed on 2026-08-17 20:11:20

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Species Helicobacter typhlonius

Species ***Helicobacter* *typhlonius***