Name: Actinobacillus equuli subsp. equuli (van Straaten 1918) Christensen et al. 2002

Category: Subspecies

Proposed as: subsp. nov.

Basonym: "Bacillus equuli" van Straaten 1918

Etymology: e.qu.u’li. L. gen. masc. n. equuli, of a foal

Gender: masculine

See detailed strain information at

Valid publication: Christensen H, Bisgaard M, Olsen JE. Reclassification of equine isolates previously reported as Actinobacillus equuli, variants of A. equuli, Actinobacillus suis or Bisgaard taxon 11 and proposal of A. equuli subsp. equuli subsp. nov. and A. equuli subsp. haemolyticus subsp. nov. Int J Syst Evol Microbiol 2002; 52:1569-1576.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 5 of the IJSEM. Int J Syst Evol Microbiol 2003; 53:3-5.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Notes:
  • This subspecies could be automatically created (rule 40d) by the valid publication of Actinobacillus equuli subsp. haemolyticus Christensen et al. 2002 but an explicit description was also provided. Publication: Christensen H, Bisgaard M, Olsen JE. Reclassification of equine isolates previously reported as Actinobacillus equuli, variants of A. equuli, Actinobacillus suis or Bisgaard taxon 11 and proposal of A. equuli subsp. equuli subsp. nov. and A. equuli subsp. haemolyticus subsp. nov. Int J Syst Evol Microbiol 2002; 52:1569-1576.
  • The original autorship, (van Straaten 1918) Haupt 1934, was corrected according to the new Rule 40d. Publication: Parker CT, Tindall BJ, Garrity GM. International Code of Nomenclature of Prokaryotes. Int J Syst Evol Microbiol 2019; 69:S1-S111.
  • The full TRBA 466 classification is: risk group = 2, note = "ht".

Parent taxon: Actinobacillus equuli (van Straaten 1918) Haupt 1934 (Approved Lists 1980)

Assigned by: Christensen H, Bisgaard M, Olsen JE. Reclassification of equine isolates previously reported as Actinobacillus equuli, variants of A. equuli, Actinobacillus suis or Bisgaard taxon 11 and proposal of A. equuli subsp. equuli subsp. nov. and A. equuli subsp. haemolyticus subsp. nov. Int J Syst Evol Microbiol 2002; 52:1569-1576.

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Record number: 783278