Staphylococcus caprae
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Staphylococcaceae, Genus Staphylococcus, Staphylococcus caprae  
Devriese et al. 1983.
Gram positive cocci, 0.8 - 1.2 μm, nonmotile, nonsporing. Form pairs, chains and
clusters.
Colonies nonpigmented, slightly convex, opaque, and glistening, 5–8 mm diameter.
Hemolytic (delayed reaction). Facultatively anaerobic,  25 - 45 ºC, 37 ºC optimum.
Growth is much slower at 25 ºC. Grow on media: Nutrient agar or nutrient broth,
Trypticase Soy Agar ± 5% sheep blood, Mueller Hinton agar, Chapman (selective
medium with 75 g/l de NaCl & mannitol).
Isolated rarely, from animals (goats' milk & skin), and humans. Susceptible to Novobiocin.
May produce mastitis in small ruminants,  rarely nosocomial infections in humans (bone and joint sepsis or bacteremia,
endocarditis, urinary tract infections, otitis externa); neonatal bacteremia .
  1. Holt J.G., Krieg N.R., Sneath P.H.A., Staley J.T., Wiliams S.T., 1994. Bergey's Manual of Determinative Bacteriology, Ninth Edition,
    Williams & Wilkins, Baltimore. Group 17, Gram-Positive Cocci, 527-558.
  2. Devriese L.A., Poutrel B., Kilpper-Balz R. & Schleifer K.H.: Staphylococcus gallinarum and Staphylococcus caprae, two new
    species from animals. Int. J. Syst. Bacteriol., 1983, 33, 480-486.
  3. Ross T. L., Fuss E. P., Harrington S. M., Cai M., Perl T. M.,& Merz W. G.: Methicillin-Resistant Staphylococcus caprae in a Neonatal
    IntensiveCare Unit. Journal of Clinical Microbiology, January 2005, p. 363-367, Vol. 43, No. 1.
  4. Karl-Heinz Schleifer and Julia A. Bell, 2009. Family VIII. Staphylococcaceae fam. nov.. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R.
    Krieg, W. Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The
    Firmicutes, Springer, 392-426.
Positive results for nitrate reduction, alkaline phosphatase, arginine dihydrolase
urease, acetoin production, deoxyribonuclease agar, catalase, acid production from:
mannose, lactose, trehalose & galactose.

Negative results for oxidase, hyaluronidase, coagulase-rabbit plasma, clumping factor, fibrinolysin, beta-glucosidase, beta-
glucuronidase, beta-galactosidase, caseinase, gelatinase, staphylokinase, Tween 80 hydrolysis, acid production from: amygdalin,
arabinose, arbutin, xylitol, raffinose, xylose, cellobiose, fucose, beta-gentiobiose, mannitol, melibiose, melezitose & turanose.
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