About the Authors

Li-Mei Chen

Contributed equally to this work with: Li-Mei Chen, C. Todd Davis

Affiliation Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

C. Todd Davis

Contributed equally to this work with: Li-Mei Chen, C. Todd Davis

Affiliation Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Hong Zhou

Affiliation Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Nancy J. Cox

Affiliation Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Ruben O. Donis

rvd6@cdc.gov

Affiliation Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LC CD NC RD. Performed the experiments: LC CD. Analyzed the data: LC CD HZ RD. Contributed reagents/materials/analysis tools: LC. Wrote the paper: LC CD HZ RD.