Name: Haemophilus parahaemolyticus Pittman 1953 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: Gr. prep. para, beside, alongside of, near, like; N.L. masc. adj. haemolyticus, specific epithet; N.L. masc. adj. parahaemolyticus, resembling (Haemophilus) haemolyticus

Gender: masculine

Type strain: ATCC 10014; CCUG 3716; CIP 56.86; DSM 21417; NCTC 8479

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M75073 Analyse FASTA

Effective publication: Pittman M. A classification of the hemolytic bacteria of the genus Haemophilus: Haemophilus haemolyticus Bergey et al. and Haemophilus parahaemolyticus nov spec. J Bacteriol 1953; 65:750-751.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Notes:
  • 😷 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 = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — 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 2023-10-29. 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 50 times in PubMed until 2024-03-27.
  • 🪓 Organisms assigned to this species have previously been classified as Haemophilus haemolyticus Bergey et al. 1923 (Approved Lists 1980). Publication: Bergey DH, Harrison FC, Breed RS, Hammer BW, Huntoon FM. Bergey's Manual of Determinative Bacteriology, 1st ed. The Williams & Wilkins Co, Baltimore, 1923. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
  • 🧍 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 2022; 168:0.

Parent taxon: Haemophilus corrig. Winslow et al. 1917 (Approved Lists 1980)

Assigned by: Pittman M. A classification of the hemolytic bacteria of the genus Haemophilus: Haemophilus haemolyticus Bergey et al. and Haemophilus parahaemolyticus nov spec. J Bacteriol 1953; 65:750-751.

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Record number: 776646