About the Authors

Carolina E. Caffaro

Current address: Agilent Technologies, Santa Clara, California, United States of America.

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

Anita A. Koshy

Current address: Thomas W. Keating Bioresearch Building, University of Arizona, Tucson, Arizona, United States of America.

Affiliation Department of Medicine (Infectious Diseases), Stanford University School of Medicine, Stanford, California, United States of America

Li Liu

Affiliation Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, United States of America

Gusti M. Zeiner

Current address: Agilent Technologies, Santa Clara, California, United States of America.

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

Carlos B. Hirschberg

Affiliation Department of Medicine (Infectious Diseases), Stanford University School of Medicine, Stanford, California, United States of America

John C. Boothroyd

john.boothroyd@stanford.edu

Affiliation Department of Microbiology & 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: CEC AAK JCB. Performed the experiments: CEC AAK LL. Analyzed the data: CEC LL JCB. Contributed reagents/materials/analysis tools: CEC GMZ CBH. Wrote the paper: CEC JCB.