Identification of novel variants of the colistin resistance gene mcr-3 in Aeromonas spp. from the national resistance monitoring programme GERM-Vet and from diagnostic submissions

Abstract excerpt

Objectives: To investigate Aeromonas spp. isolates for the presence of the novel resistance gene mcr-3 or variants thereof and to characterize the positive isolates by whole genome sequence analysis. Methods: A total of 479 unrelated Aeromonas isolates were investigated by PCR for the genes mcr-1, mcr-2 and mcr-3. Positive isolates were investigated for their colistin MICs. Species assignment was based on...

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