About the Authors

Stefan J. Halbherr

Affiliation Institute of Virology and Immunology (IVI), Mittelhäusern, Switzerland

Terza Brostoff

Affiliations Institute of Virology and Immunology (IVI), Mittelhäusern, Switzerland, Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America

Merve Tippenhauer

Affiliation Institute of Virology and Immunology (IVI), Mittelhäusern, Switzerland

Samira Locher

Affiliation Institute of Virology and Immunology (IVI), Mittelhäusern, Switzerland

Marianne Berger Rentsch

Affiliation Institute of Virology and Immunology (IVI), Mittelhäusern, Switzerland

Gert Zimmer

gert.zimmer@ivi.admin.ch

Affiliation Institute of Virology and Immunology (IVI), Mittelhäusern, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SH TB GZ. Performed the experiments: SH TB SL MT MBR GZ. Analyzed the data: SH GZ. Wrote the paper: SH GZ.