Species ***Neisseria* *bacilliformis***

Name: Neisseria bacilliformis Han et al. 2006

Category: Species

Proposed as: sp. nov.

Etymology: ba.cil.li.for’mis. L. masc. n. bacillus, a small staff, a wand; L. masc./fem. adj. suff. -formis, -like, in the shape of; from L. fem. n. forma, figure, shape, appearance; N.L. fem. adj. bacilliformis, shaped like a small rod

Pronunciation (Latin), gender: ne͡is-SE-ri-a ba-kil-li-FOR-mis, feminine

Type strain: ATCC BAA-1200; CCUG 50858; DSM 23338; MDA 2833

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AY560519 Analyse FASTA

Effective publication: Han XY, Hong T, Falsen E. Neisseria bacilliformis sp. nov. isolated from human infections. J Clin Microbiol 2006; 44:474-479. 🇺🇸

IJSEM list: Euzeby JP. Validation list no. 110. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2006; 56:1459-1460.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

Notes:
- 🧬 The phylogenomic assignment score of this taxon is -0.01284 (N = 14).
- 😷 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 18 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.
- 🧍 According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology (Reading) 2022; 168:0. 🇬🇧
- 🧍 The noun bacillus is a Latin noun, not a neo-Latin noun as cited in the etymology provided by Han et al. 2006. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592. 🇫🇷

Parent taxon: Neisseria Trevisan 1885 (Approved Lists 1980)

Assigned by: Han XY, Hong T, Falsen E. Neisseria bacilliformis sp. nov. isolated from human infections. J Clin Microbiol 2006; 44:474-479. 🇺🇸

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.785253Link copied to clipboard

Record number: 785253

This LPSN page was printed on 2026-09-04 17:30:19

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Species Neisseria bacilliformis

Species ***Neisseria* *bacilliformis***