Volta

First molecular detection of Mycobacterium bovis in environmental samples from a French region with endemic bovine tuberculosis

AIMS: The aim of the study was to determine the prevalence of Mycobacterium bovis (the causative agent of bovine tuberculosis, bTB) in environmental matrices within a French region (Côte d'Or) affected by this zoonotic disease. METHODS AND RESULTS: We report here the development and the use of molecular detection assays based on qPCR (double fluorescent dye-labelled probe) to monitor the occurrence of Mycobacterium tuberculosis complex (MTBC) or Myco. bovis in environmental samples collected in pastures where infected cattle and wildlife had been reported. Three qPCR assays targeting members of the MTBC (IS1561' and Rv3866 loci) or Myco. bovis (RD4 locus) were developed or refined from existing assays. These tools were validated using Myco. bovis spiked soil, water and faeces samples. …

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