About the Authors

Changbin Chen

Affiliation Department of Microbiology and Immunology, University of California at San Francisco, San Francisco, California, United States of America

Suzanne M. Noble

Suzanne.Noble@ucsf.edu

Affiliations Department of Microbiology and Immunology, University of California at San Francisco, San Francisco, California, United States of America, Department of Medicine, Division of Infectious Diseases, University of California at San Francisco, San Francisco, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CC SMN. Performed the experiments: CC. Analyzed the data: CC SMN. Contributed reagents/materials/analysis tools: CC SMN. Wrote the paper: CC SMN.