First characterisation of plasmid-mediated quinolone resistance-qnrS1 co-expressed bla and bla genes in clinical strain of Morganella morganii recovered from a Tunisian Intensive Care Unit

This is the first report in Tunisia of nosocomial infection due to the production of CTX-M-15 and DHA-1 β-lactamases in M. morganii isolate with the association of quinolone plasmid resistance. The incidence of these strains invites continuous monitoring of such multidrug-resistant strains and the further study of their epidemiologic evolution.