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Evaluation of Three Slide Agglutination Tests for Rapid Identification of Staphylococcus aureus
Bedömning av tre “slide” agglutinationstester för snabb identifiering av Staphylococcus aureus
Acta Veterinaria Scandinavica volume 32, pages 543–549 (1991)
Abstract
Three slide agglutination tests for identification of Staphylococcus aureus were compared. The agglutination tests used for evaluation were Staphaurex (Wellcome Diagnostics), Staphyslide-Test (BioMerieux), and ANI S. aureus TEST (Ani Biotech Oy). A total of 347 isolates were analyzed, including 288 strains of S. aureus, 49 of S. epidermis, 11 of S. intermedius, 12 strains of other staphylococci and 14 non-staphylococcal strains. One hundred of the S. aureus strains were isolates from cases of food poisoning, 129 from mastitis and 59 from other clinical cases. The sensitivities of the tests were also compared using diluted suspensions of S. aureus strains and with purified Protein A dilutions. The results showed that the sensitivities of the tests were 98.6 %, 97.9 % and 99.0 % for Staphaurex, Staphyslide-test and ANI S. aureus TEST, respectively. The specificities were 100 % for the Staphyslide test and 98.8 % for both the ANI S. aureus TEST and the Staphaurex test. The sensitivities measured with diluted S. aureus strain suspensions and Protein A solutions were equal with the Staphaurex and ANI S. aureus TEST.
All the agglutination tests studied proved to be practical, easy to use and accurate for the rapid identification of S. aureus strains from culture isolates.
Sammanfattning
Tre slide agglutinationstester för identifiering av Staphylococcus aureus jämfördes. Följande 3 tester undersöktes: Staphaurex (Wellcome Diagnostics), Staphyslide-Test (Bio Merieux) och ANI S. aureus Test (Ani Biotech Oy).
Sammanlagt 347 isolationer analyserades innefattande 288 stammar av S. aureus, 49 av S. epidermis, och 11 av S. intermedius, 12 stammar av andra staphylococci och 14 non-staphylococci stammar. Hundrade av S. aureus stammarna var isolerade ur matförgiftningsfall, 129 ur mastitis och 59 ur andra kliniska fall. Även testernas känslighet jämfördes genom att använda diluterade suspensioner av S. aureus stammar och med renade Protein A dilutioner.
Resultaten visade att testkänsligheten var 98,6 %, 97,9% och 99,0% för Staphaurex, Staphyslide-Test och ANI S. aureus Test i nämnd ordning. Specifiteten för Staphyslide Testet var 100% och för ANI S. aureus Testet 98,8 % vardera. Känslighet mätt med diluterade suspensioner av S. aureus stammar och Protein A lösningar var lika för Staphaurex och ANI S. aureus Test.
Alla undersökta tester visade sig vara praktiska, lätta att använda och exakta för snabb identifiering av S. aureus stammar i odlingsprov.
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Niskanen, A., Korkeala, H., Manninen, M. et al. Evaluation of Three Slide Agglutination Tests for Rapid Identification of Staphylococcus aureus. Acta Vet Scand 32, 543–549 (1991). https://doi.org/10.1186/BF03546956
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DOI: https://doi.org/10.1186/BF03546956