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    A European multicenter evaluation study to investigate the performance on commercially available selective agar plates for the detection of carbapenemase producing Enterobacteriaceae

    Journal of Microbiological Methods

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    Data
    2022
    Autor
    Dierikx, Cindy
    Börjesson, Stefan
    Perrin-Guyomard, Agnes
    Haenni, Marisa
    Norstrom, Madelaine
    Divon, Hege H.
    Karin Ilag, Hanna
    Granier, Sophie A.
    Hammerum, Annette
    Sejer Kjeldgaard, Jette
    Pauly, Natalie
    Randall, Luke
    Anjum, Muna F.
    Śmiałowska, Aleksandra
    Franco, Alessia
    Veldman, Kees
    Schau Slettemeas, Jannice
    Metadane
    Pokaż pełny rekord
    Streszczenie
    The European Food Safety Authority (EFSA) advised to prioritize monitoring carbapenemase producing Enterobacteriaceae (CPE) in food producing animals. Therefore, this study evaluated the performance of different commercially available selective agars for the detection of CPE using spiked pig caecal and turkey meat samples and the proposed EFSA cultivation protocol. Eleven laboratories from nine countries received eight samples (four caecal and four meat samples). For each matrix, three samples contained approximately 100 CFU/g CPE, and one sample lacked CPE. After overnight enrichment in buffered peptone water, broths were spread upon Brilliance™ CRE Agar (1), CHROMID® CARBA (2), CHROMagar™ mSuperCARBA™ (3), Chromatic™ CRE (4), CHROMID® OXA-48 (5) and Chromatic™ OXA-48 (6). From plates with suspected growth, one to three colonies were selected for species identification, confirmation of carbapenem resistance and detection of carbapenemase encoding genes, by methods available at participating laboratories. Of the eleven participating laboratories, seven reported species identification, susceptibility tests and genotyping on isolates from all selective agar plates. Agars 2, 4 and 5 performed best, with 100% sensitivity. For agar 3, a sensitivity of 96% was recorded, while agar 1 and 6 performed with 75% and 43% sensitivity, respectively. More background flora was noticed for turkey meat samples than pig caecal samples. Based on this limited set of samples, most commercially available agars performed adequately. The results indicate, however, that OXA-48-like and non-OXA-48-like producers perform very differently, and one should consider which CPE strains are of interest to culture when choosing agar type.
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    https://www.sciencedirect.com/science/article/pii/S0167701222000136?via%3Dihub
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