1. University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, The Netherlands
2. Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, USA
3. Laboratory of Clinical Microbiology and Infectious Disease, Isala hospital, Zwolle, The Netherlands
4. The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Bath, UK