1 Department of Microbiology, Tumour, and Cell Biology, Karolinska Institutet, Stockholm, Sweden; Clinical Microbiology, BioClinicum, Karolinska University Hospital, Stockholm, Sweden.
2 Department of Microbiology, Tumour, and Cell Biology, Karolinska Institutet, Stockholm, Sweden; Clinical Microbiology, BioClinicum, Karolinska University Hospital, Stockholm, Sweden; Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore. Electronic address: edmund.loh@ki.se.