Rapid tests: preliminar identification from blood culture

  • Elisa Gobbato | gobbatoelisa@libero.it
  • Vesselina Kroumova
  • Paola Macaluso
  • Sabrina Tamburelli
  • Luca Mucedola
  • Giacomo Fortina

Abstract

In the period 1 April to 30 June 2011, we compared the rapid test identification of 250 positive blood cultures with the identification by MALDI-TOF mass spectrometer (Bruker). After Gram staining and an important step in HB&L liquid culture (Alifax), rapid tests were performed according to the morphological characteristics of the sample. Pneumococcus urinary antigen test and tube coagulase test showed a concordance of 100%, the concordance rates for Pyr test and oxidase test were 91% and 89% respectively. Overall, the percentage of agreement of the rapid tests on 250 samples was found to be of 99.2%. The data obtained show that, even with their increased bacterial concentration due to the enrichment step in HB&L liquid culture, it is possible to obtain preliminary identification directly from positive blood culture with simple rapid tests.

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Published
2012-06-30
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Section
Short Communications
Keywords:
Rapid test, Bacterial identification, Blood culture
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How to Cite
Gobbato, E., Kroumova, V., Macaluso, P., Tamburelli, S., Mucedola, L., & Fortina, G. (2012). Rapid tests: preliminar identification from blood culture. Microbiologia Medica, 27(2). https://doi.org/10.4081/mm.2012.2317

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