Staphylococcus caprae

Staphylococcus caprae is a Gram-positive, coccus bacteria and a member of the genus Staphylococcus. S. caprae is coagulase-negative. It was originally isolated from goats (caprae means "of a goat"), but members of this species have also been isolated from human samples.

Staphylococcus caprae
Scientific classification
Kingdom:
Bacteria
Phylum:
Firmicutes
Class:
Bacilli
Order:
Bacillales
Family:
Staphylococcaceae
Genus:
Staphylococcus
Species:
S. caprae
Binomial name
Staphylococcus caprae
Devriese et al. 1983

Clinical importance

S. caprae occurs as a commensal on human skin, but has also been implicated in infections of the bloodstream, urinary tract, bones, and joints. Because S. caprae is difficult to identify definitively in the laboratory,[1] according to a study in 2014, the incidence of S. caprae in humans is under-reported.[2]

Literature and further reading

It is a coagulase-negative, DNase-positive member of the genus Staphylococcus. Usually it is associated with goats. Since 1991, a few laboratories reported that they had isolated the organism from human clinical specimens.[3] It is now an emerging microorganism in joint and bone infections in humans.[4]

Staphylococcus caprae was first described in 1983 by Devisee et al. based on a strain isolated from some goat milk. It can sometimes cause mastitis in the goats, and it is considered a commensal organism for the goats’ skin and mammary glands. It has been reported as a pathogen for humans acquired at hospitals, mostly in bone and joint infections.[5] There have also been studies on S. caprae causing sepsis in clinical settings.[6]

References
  1. Carretto E; Barbarini D; Couto I; De Vitis D; Marone P; Verhoef J; De Lencastre H; Brisse S (2005). "Identification of coagulase-negative staphylococci other than Staphylococcus epidermidis by automated ribotyping". Clin Microbiol Infect. 11 (3): 177–184. doi:10.1111/j.1469-0691.2004.01052.x. PMID 15715714.
  2. Seng P, Barbe M, Pinelli PO, Gouriet F, Drancourt M, Minebois A, Cellier N, Lechiche C, Asencio G, Lavigne JP, Sotto A, Stein A (2014). "Staphylococcus caprae bone and joint infections: a re-emerging infection?". Clin Microbiol Infect. 20 (12): O1052-8. doi:10.1111/1469-0691.12743. PMID 24975594.
  3. Human isolates of Staphylococcus caprae: association with bone and joint infections. in the Journal of Clinical Microbiology October 1997 vol. 35 no. 10 2537-2541
  4. Characterization of Staphylococcus caprae Clinical Isolates Involved in Human Bone and Joint Infections, Compared with Goat Mastitis Isolates, Journal of Clinical Microbiology January 2016 vol. 54 no. 1 106-113
  5. Characterization of Staphylococcus caprae Clinical Isolates Involved in Human Bone and Joint Infections, Compared with Goat Mastitis Isolates, Journal of Clinical Microbiology January 2016 vol. 54 no. 1 106-113
  6. Kini GD, Parris AR, Tang JS (2009). "A Rare Presentation of Sepsis from Staphylococcus caprae". Open Microbiol J. 3: 67–8. doi:10.2174/1874285800903010067. PMC 2698425. PMID 19543552.


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