Species Streptococcus parapneumoniae

Name: Streptococcus parapneumoniae Katayama et al. 2025

Category: Species

Proposed as: sp. nov.

Etymology: pa.ra.pneu.mo.ni’ae. N.L. gen. fem. n. parapneumoniae, indicating the similarity to Streptococcus pneumoniae

Pronunciation (Latin), gender: strep-to-KOK-kus pa-ra-pne͡u-mo-NI-a͡e, masculine

Type strain: JCM 36068; KCTC 21228; SP 4011

Conduct genome-based taxonomy at

16S rRNA gene: LC811253 Analyse FASTA

Effective publication: Katayama Y, Morita M, Chang B, Katagiri D, Ishikane M, Yamada G, Mezaki K, Kurokawa M, Takano H, Akeda Y. Identification and characterization of a novel alpha-haemolytic streptococci, Streptococcus parapneumoniae sp. nov., which caused bacteremia with pyelonephritis. Int J Med Microbiol 2024; 315:151625. 🇯🇵

IJSEM list: Oren A, Göker M. Validation list no. 221. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2025; 75:6562.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Streptococcus thalassemiae Diouf et al. 2023

Synonyms:

Name	Kind
Streptococcus thalassemiae Diouf et al. 2023	heterotypic synonym, validly published under the ICNP
Streptococcus nakanonensis corrig. Wajima et al. 2025	heterotypic synonym, validly published under the ICNP
Streptococcus nakanoensis Wajima et al. 2025	heterotypic synonym, inaccurate spelling

Notes:
- ⏲ According to Kilian et al. (2025), this species is a later heterotypic synonym of Streptococcus thalassemiae Diouf et al. 2023. Publication: Kilian M, Slotved HC, Fuursted K, D'Mello A, Tettelin H. Re-evaluation of boundaries of Streptococcus mitis and Streptococcus oralis and demonstration of multiple later synonyms of Streptococcus mitis, Streptococcus oralis and Streptococcus thalassemiae: description of Streptococcus mitis subsp. carlssonii subsp. nov. and emended description of Streptococcus mitis. Int J Syst Evol Microbiol 2025; 75:6704. 🇩🇰
- 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 75, part 3 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6765.
- ❗ Streptococcus parapneumoniae is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Streptococcus.
- 🎓 Name mentioned 3 times in PubMed until 2026-02-10.
- 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded pathogenicity of the species itself.

Parent taxon: Streptococcus Rosenbach 1884 (Approved Lists 1980)

Assigned by: Katayama Y, Morita M, Chang B, Katagiri D, Ishikane M, Yamada G, Mezaki K, Kurokawa M, Takano H, Akeda Y. Identification and characterization of a novel alpha-haemolytic streptococci, Streptococcus parapneumoniae sp. nov., which caused bacteremia with pyelonephritis. Int J Med Microbiol 2024; 315:151625. 🇯🇵

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.57194Link copied to clipboard

Record number: 57194

This LPSN page was printed on 2026-08-11 16:49:09

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Species Streptococcus parapneumoniae