About the Authors

Jessica S. Tyler

Affiliation Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, United States of America

John C. Boothroyd

john.boothroyd@stanford.edu

Affiliation Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JST JCB. Performed the experiments: JST. Analyzed the data: JST JCB. Wrote the paper: JST JCB.