Sporadic clone ST615 as a vector and reservoir for dissemination of crucial antimicrobial resistance genes.

There is scarce information concerning the role of sporadic clones in the dissemination of antimicrobial resistance genes (ARGs) within the nosocomial niche. We confirmed that the clinical M19736 ST615 strain, one of the first isolates of Latin America that harbors a plasmid with an gene, could receive crucial ARG by transformation and conjugation using as donors critical plasmids that harbor , , , , or genes. M19736 acquired , , , , and genes, being only blaNDM-1 maintained at 100% on the 10th day of subculture.