Spread of oqxAB in Salmonella enterica serotype Typhimurium predominantly by IncHI2 plasmids

Abstract

The results suggest that both clonal expansion and horizontal transmission of IncHI2-type plasmids containing oqxAB and aac(6')-Ib-cr may be involved in the spread of oqxAB in Salmonella Typhimurium isolates in food-producing animals in China. There is a great need to monitor the potential dissemination of this multiresistance gene.