About the Authors

James W. Bruce

Affiliation Institute for Molecular Virology, University of Wisconsin, Madison, Wisconsin, United States of America

Paul Ahlquist

ahlquist@wisc.edu (PA); jyoung@salk.edu (JATY)

Affiliations Institute for Molecular Virology, University of Wisconsin, Madison, Wisconsin, United States of America, Howard Hughes Medical Institute University of Wisconsin, Madison, Wisconsin, United States of America

John A. T. Young

ahlquist@wisc.edu (PA); jyoung@salk.edu (JATY)

Affiliation Infectious Disease Laboratory, The Salk Institute for Biological Studies, La Jolla, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JWB PA JATY. Performed the experiments: JWB. Analyzed the data: JWB PA JATY. Wrote the paper: JWB PA JATY.