1. Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
2. Institute for Microbiology, Ernst-Moritz-Arndt-University Greifswald, Greifswald, Germany
3. Department of Molecular Genetics, University of Groningen, Groningen Biomolecular Sciences and Biotechnology Institute, Groningen, The Netherlands
4. State Key Laboratory for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, Zhejiang University, Hangzhou, China