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Detection of a clonal complex with Brucella abortus biovar 2 genotype as founder in B. abortus isolates from Argentina



Detection of a clonal complex with Brucella abortus biovar 2 genotype as founder in B. abortus isolates from Argentina



Revista Argentina de Microbiologia 45(4): 229-239



Brucella abortus is the causative agent of bovine brucellosis, a worldwide zoonosis. Up to date, eight biovars of B. abortus have been described. In Argentina, biovar 1 is the most frequently isolated. However, biovar 2, which is more pathogenic than biovar 1, is also found. Molecular methods for subtyping isolates are necessary for allowing epidemiological surveillance and control of eradication programs. Due to the genetic homogeneity of the genus Brucella, the development of molecular typing tools has been difficult. The publication of microorganism genomes facilitates the design of this approach. The aim of this work was to employ a Multiple Locus VNTR Analysis (MLVA) scheme for strains from Argentina isolated in our laboratory. From the 56 isolates analyzed, 47 different genotypic profiles were obtained. All the strains typed as biovar 2 showed the same profile. This scheme allowed assigning each isolate to the biovar it belongs to. All the genotypes were related using the goeBURST analysis and biovar 2 was proposed as founder.

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Accession: 052517984

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PMID: 24401776

DOI: 10.1016/S0325-7541(13)70029-4


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