1 ReAct-Action on Antibiotic Resistance, Uppsala University, Uppsala SE-751 05, Sweden; European Centre for Disease Prevention and Control, Stockholm, Sweden.
2 ReAct-Action on Antibiotic Resistance, Uppsala University, Uppsala SE-751 05, Sweden.
3 ReAct-Action on Antibiotic Resistance, Uppsala University, Uppsala SE-751 05, Sweden. Electronic address: [email protected].
4 European Centre for Disease Prevention and Control, Stockholm, Sweden; Department of Microbiology and Infection Control, Statens Serum Institut, Copenhagen, Denmark.