The macrolide resistance genes erm(B) and mef(E) are carried by Tn2010 in dual-gene Streptococcus pneumoniae isolates belonging to clonal complex CC271.
Del Grosso M, Northwood JG, Farrell DJ, Pantosti A.
The genetic elements carrying macrolide resistance genes in Streptococcus pneumoniae isolates belonging to CC271 were investigated. The international clone Taiwan(19F)-14 was found to carry Tn2009, a Tn916-like transposon containing tet(M) and mef(E). The dual erm(B) mef(E) isolates carried Tn2010, which is similar to Tn2009 with the addition of a putative new transposon, the erm(B) genetic element.