The flanking genetic structure of qnrA1 in Korean Enterobacter
cloacae was identical to that of the Chinese Escherichia
coli strain, the first qnrA1-carrying strain reported in Asia.
Analysis of restriction enzyme sites and Southern blot
hybridization results showed that qnrA1 was transferred
between E. cloacae and E. coli via Inc HI2 type plasmid.