About the Authors
Institute of Medical Microbiology and Immunology, Aarhus University, Aarhus, Denmark
Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
Institute for Genome Sciences, Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MK KP. Performed the experiments: MK KP TB LSH MBT HT UBS. Analyzed the data: MK KP TB LSH MBT HT UBS. Wrote the paper: MK KP LSH UBS.