1 Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm 171 65, Sweden. Electronic address: daniel.sheward@ki.se.
2 Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm 171 65, Sweden.
3 Department of Clinical Microbiology, Karolinska University Hospital, Stockholm, Sweden.
4 Department of Infectious Disease, Imperial College London, London, UK; The Pirbright Institute, Woking, UK.
5 Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm 171 65, Sweden; Department of Clinical Microbiology, Karolinska University Hospital, Stockholm, Sweden.