Name: Streptococcus equi subsp. zooepidemicus (ex Frost and Englebrecht 1936) Farrow and Collins 1985

Category: Subspecies

Proposed as: subsp. nov., nom. rev.

Etymology: zo.o.e.pi.de.mi.cus. Gr. neut. n. zôon, an animal; Gr. masc./fem. adj. epidêmios, among the people, prevalent, epidemic; L. masc. adj. suff. -icus, suffix used with various meanings; N.L. masc. adj. zooepidemicus, prevalent among animals

Gender: masculine

Type strain: ATCC 43079; CCUG 23256; CIP 103228; DSM 20727; LMG 16030; NBIMCC 2033; NCDO 1358; NCFB 1358; NCIMB 701358; NCTC 4676

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EF406034 Analyse FASTA

Effective publication: Farrow JAE, Collins MD. Taxonomic studies on streptococci of serological groups C, G and L and possibly related taxa. Syst. Appl. Microbiol. 1984; 5:483-493.

IJSEM list: Anonymous. Validation list no. 17. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1985; 35:223-225.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 😷 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". — 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.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this subspecies. The name is on LoRN because of the recorded risk group of the species itself.
  • 🧍 In Validation List no. 17, the year of the effective publication is erroneously cited as 1985. Publication: Anonymous. Validation list no. 17. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1985; 35:223-225.
  • 🧍 Nom. rev. / basonym "Streptococcus zooepidemicus". Publication: Breed RS, Murray EG, Smith NR. Bergey’s Manual of Determinative Bacteriology, 7th ed. Williams and Wilkins, Baltimore, 1957.

Parent taxon: Streptococcus equi Sand and Jensen 1888 (Approved Lists 1980)

Assigned by: Farrow JAE, Collins MD. Taxonomic studies on streptococci of serological groups C, G and L and possibly related taxa. Syst. Appl. Microbiol. 1984; 5:483-493.

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Record number: 781327