Species ***Streptococcus* *parasanguinis***

Name: Streptococcus parasanguinis corrig. Whiley et al. 1990

Category: Species

Proposed as: sp. nov.

Etymology: pa.ra.san’gui.nis. Gr. prep. para, alongside of or near; L. gen. masc. n. sanguinis, of the blood, and also a specific epithet; N.L. gen. masc. n. parasanguinis, alongside of Streptococcus sanguinis, indicating the close similarity between the two species

Pronunciation (Latin), gender: strep-to-KOK-kus pa-ra-SAN-gu͡i-nis, masculine

Type strain: ATCC 15912; CCUG 30417; DSM 6778; LMG 14537; Strain 55898

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF003933 Analyse FASTA

Effective publication: Whiley RA, Fraser HY, Douglas CW, Hardie JM, Williams AM, Collins MD. Streptococcus parasanguis sp. nov., an atypical viridans Streptococcus from human clinical specimens. FEMS Microbiol Lett 1990; 56:115-121. 🇬🇧

IJSEM list: Anonymous. Validation list no. 34. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1990; 40:320-321.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

Synonyms:

Name	Kind
Streptococcus parasanguis Whiley et al. 1990	other spelling of name, inaccurate spelling

Notes:
- 🧬 The phylogenomic assignment score of this taxon is 0.07650 (N = 3).
- 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — 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. — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 2, note = "P650 = v". — 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 207 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. 🇬🇧
- 🧍 Nom. corrig.: IJSB 47:909; Streptococcus parasanguis (sic). Publication: Trüper HG, De' Clari L. Taxonomic note: Necessary correction of specific epithets formed as substantives (nouns) "in apposition". Int. J. Syst. Bacteriol. 1997; 47:908-909. 🇩🇪
- 🧍 The original spelling of the specific epithet, parasanguis (sic), has been corrected by Trüper and De' Clari 1997. Publication: Trüper HG, De' Clari L. Taxonomic note: Necessary correction of specific epithets formed as substantives (nouns) "in apposition". Int. J. Syst. Bacteriol. 1997; 47:908-909. 🇩🇪

Parent taxon: Streptococcus Rosenbach 1884 (Approved Lists 1980)

Assigned by: Whiley RA, Fraser HY, Douglas CW, Hardie JM, Williams AM, Collins MD. Streptococcus parasanguis sp. nov., an atypical viridans Streptococcus from human clinical specimens. FEMS Microbiol Lett 1990; 56:115-121. 🇬🇧

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.781368Link copied to clipboard

Record number: 781368

This LPSN page was printed on 2026-09-11 10:21:27

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Species Streptococcus parasanguinis

Species ***Streptococcus* *parasanguinis***