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Journal of Clinical Microbiology, 05 1997, 1138-1140, Vol 35, No. 5
P Personne, M Bes, G Lina, F Vandenesch, Y Brun and J Etienne
Six commercial agglutination tests designed for the identification of
Staphylococcus aureus were compared by using a strain collection which
included 512 staphylococci representing 33 species (318 isolates of
Staphylococcus aureus [including 144 oxacillin resistant], 46 S.
epidermidis isolates, 15 S. haemolyticus isolates, 12 S. saprophyticus
isolates, 29 S. schleiferi isolates, 30 S. lugdunensis isolates, and 62
other coagulase-negative staphylococci). This group also included a
proportion of strains with unusual phenotypes (e.g., 19 coagulase- negative
S. aureus isolates, 26 clumping factor-negative S. aureus isolates, and 4
S. aureus isolates each with a double deficiency). The overall sensitivity
for identification of typical and atypical S. aureus was high with the
Staphaurex Plus test (Murex Biotech) (99.7%), the Pastorex Staph Plus test
(Sanofi Diagnostics Pasteur) (99.7%), and the Slidex Staph Plus test
(bioMerieux) (100%). The overall rate of specificity was affected by the
unusual inclusion in this study of a high proportion of non-S. aureus
species, such as S. lugdunensis and S. schleiferi, which express a clumping
factor and therefore produce a positive result with the agglutination
tests.
Copyright © 1997 by the American Society for Microbiology. All rights reserved.
Comparative performances of six agglutination kits assessed by using typical and atypical strains of Staphylococcus aureus
Centre National de Reference des Staphylocoques, UPRES EA1655, Faculte de Medecine, Lyon, France.
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