Emergence of Tn 1999.7 , a New Transposon in bla _OXA-48 -Harboring Plasmids Associated with Increased Plasmid Stability

OXA-48 is the most common carbapenemase in Enterobacterales in Germany and many other European countries. Depending on the genomic location of bla OXA-48 , OXA-48-producing isolates vary in phenotype and intra- and interspecies transferability of bla OXA-48 . In most bacterial isolates, bla OXA-48 is located on one of seven variants of Tn 1999 (Tn 1999.1 to Tn 1999.6 and invTn 1999.2 ).