We observed an emerging resistance to β-lactams in a P. ananatis bacteremia case. Whole genome sequence analysis detected two β-lactamase genes as well as related genes that regulate the β-lactamase genes in the chromosome. The induction experiment resulted in the expression of the class A β-lactamase gene in the isolate.
Keywords: Antibiotic resistance; Class A β-lactamase; Pantoea ananatis; Whole genome sequencing.
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