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Title: | Improvement of a latex agglutination test for the evaluation of oxacillin resistance in coagulase-negative staphylococci | Authors: | Corso, Alejandra Soloaga, Rolando Faccone, D Gagetti, Paula Corbella, S Iglesias, M Galas, Marcelo F. |
Keywords: | Pruebas de Fijación de Látex;Oxacilina;Proteínas de Unión a las Penicilinas;Juego de Reactivos para Diagnóstico;Sensibilidad y Especificidad;Especificidad de la Especie;Staphylococcus;Resistencia a las Penicilinas | Issue Date: | Nov-2004 | Journal: | Diagnostic microbiology and infectious disease | Abstract: | The "Slidex MRSA Detection" test (Denka Seiken, Japan) is a latex agglutination assay able to detect PBP2a. We evaluated its ability to differentiate mecA-positive from mecA-negative coagulase-negative staphylococci. We included 100 coagulase-negative staphylococci clinical isolates belonging to 9 species, 54 mecA positive and 46 mecA negative, as characterized by PCR. The specificity achieved using the manufacturer's instructions was 100%, but the sensitivity was only 57%. To increase sensitivity, we introduced modifications into the standard protocol. Using either large inocula or oxacillin induction before test performance, we achieved 100% sensitivity. |
Description: | Fil: Corso, Alejandra. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina. Fil: Soloaga, R. Universidad Católica Argentina, Buenos Aires; Argentina. Fil: Faccone, Diego. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina. Fil: Gagetti, Paula. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina. Fil: Corbella, S.. Hospital Alvarez, Buenos Aires; Argentina. Fil: Iglesias, M.. Hospital Alvarez, Buenos Aires; Argentina. Fil: Galas, Marcelo F.. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina. |
URI: | http://sgc.anlis.gob.ar/handle/123456789/1709 | ISSN: | 0732-8893 | DOI: | 10.1016/j.diagmicrobio.2004.06.005 | Rights: | Open Access Creative Commons Attribution 4.0 International License |
Appears in Collections: | Publicaciones INEI |
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DiagnosticMicrobiologyandInfectiousDisease_2004_50_p223–p225.pdf | 72.21 kB | Adobe PDF | View/Open |
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