Name: Mannheimia haemolytica (Newsom and Cross 1932) Angen et al. 1999

Category: Species

Proposed as: comb. nov.

Basonym: Pasteurella haemolytica corrig. Newsom and Cross 1932 (Approved Lists 1980)

Etymology: haem.o.ly’ti.ca. Gr. neut. n. haîma, blood; Gr. zyt-, adjectival form of verb lyo loosen, dissolve; L. masc. adj. suff. -icus; from Gr. adj. suff. -ikos; N.L. fem. adj. haemolytica, referring to the haemolysis seen on blood agar

Gender: feminine

Type strain: A&B; ATCC 33396; CCUG 12392; CCUG 408; CECT 5941; CIP 103426; DSM 10531; J.A. Watt 1266A&B; NBIMCC 8367; NCTC 9380

Conduct genome-based taxonomy at

16S rRNA gene: AF060699 Analyse FASTA

Valid publication: Angen O, Mutters R, Caugant DA, Olsen JE, Bisgaard M. Taxonomic relationships of the [Pasteurella] haemolytica complex as evaluated by DNA-DNA hybridizations and 16S rRNA sequencing with proposal of Mannheimia haemolytica gen. nov., comb. nov., Mannheimia granulomatis comb. nov., Mannheimia glucosida sp. nov., Mannheimia ruminalis sp. nov. and Mannheimia varigena sp. nov. Int J Syst Bacteriol 1999; 49:67-86.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 49, part 1 of the IJSB. Int J Syst Bacteriol 1999; 49:343-344.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    Pasteurella haemolytica corrig. Newsom and Cross 1932 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Pasteurella hemolytica Newsom and Cross 1932 (Approved Lists 1980)	homotypic synonym, inaccurate spelling

• Notes:
  • 🥇 Nomenclatural type of the genus Mannheimia Angen et al. 1999. Publication: Angen O, Mutters R, Caugant DA, Olsen JE, Bisgaard M. Taxonomic relationships of the [Pasteurella] haemolytica complex as evaluated by DNA-DNA hybridizations and 16S rRNA sequencing with proposal of Mannheimia haemolytica gen. nov., comb. nov., Mannheimia granulomatis comb. nov., Mannheimia glucosida sp. nov., Mannheimia ruminalis sp. nov. and Mannheimia varigena sp. nov. Int J Syst Bacteriol 1999; 49:67-86.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 1, note = "animal pathogen - biological class of risk animal: 2". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 2 - 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 2023-10-29. The full classification is: risk group = 2, note = "ht".
  • 🎓 Name mentioned 842 times in PubMed until 2024-03-27.
  • 🧍 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: Mannheimia Angen et al. 1999

Assigned by: Angen O, Mutters R, Caugant DA, Olsen JE, Bisgaard M. Taxonomic relationships of the [Pasteurella] haemolytica complex as evaluated by DNA-DNA hybridizations and 16S rRNA sequencing with proposal of Mannheimia haemolytica gen. nov., comb. nov., Mannheimia granulomatis comb. nov., Mannheimia glucosida sp. nov., Mannheimia ruminalis sp. nov. and Mannheimia varigena sp. nov. Int J Syst Bacteriol 1999; 49:67-86.

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Record number: 777655