About the Authors

Christopher R. Cotter

Affiliation MedImmune LLC, Mountain View, California, United States of America

Hong Jin

Affiliation MedImmune LLC, Mountain View, California, United States of America

Zhongying Chen

chenz@medimmune.com

Affiliation MedImmune LLC, Mountain View, California, United States of America

Competing Interests

The authors have declared that no competing interests exist. The work was conducted as work for hire at MedImmune LLC. This does not alter our adherence to all the PLOS Pathogens policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: CRC ZC. Performed the experiments: CRC. Analyzed the data: CRC. Contributed reagents/materials/analysis tools: CRC ZC. Wrote the paper: ZC CRC HJ.