About the Authors
Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, The Netherlands
Department of Biotechnology and Bioscience, Genopolis, University of Milano-Bicocca, Milan, Italy
The authors have declared that no competing interests exist.
Conceived and designed the experiments: RS FZ FB. Performed the experiments: RS JW DK. Analyzed the data: RS DK. Wrote the paper: RS RvdZ WvE FB.