About the Authors
Department of Medical Microbiology and Immunology, Medical University of Ohio, Toledo, Ohio, United States of America
Institute of Virology, University of Würzburg, Würzburg, Germany
Department of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
The authors have declared that no competing interests exist.
S. G. Sawicki, D. L. Sawicki, and S. G. Siddell conceived and designed the experiments. S. G. Sawicki, D. L. Sawicki, D. Younker, Y. Meyer, V. Thiel, H. Stokes, and S. G. Siddell performed the experiments and analyzed the data. S. G. Sawicki, V. Thiel, and S. G. Siddell wrote the paper.