About the Authors

Adam Johnson

Contributed equally to this work with: Adam Johnson, Li-Mei Chen

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

Li-Mei Chen

Contributed equally to this work with: Adam Johnson, Li-Mei Chen

rvd6@cdc.gov (ROD); bpr5@cdc.gov (LMC)

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

Emily Winne

Affiliation Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Wanda Santana

Affiliation Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Maureen G. Metcalfe

Affiliation National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Guaniri Mateu-Petit

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

Callie Ridenour

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

M. Jaber Hossain

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

Julie Villanueva

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

Sherif R. Zaki

Affiliation National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Tracie L. Williams

Affiliation Division of Laboratory Sciences, National Center for Environmental Health, 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

John R. Barr

Affiliation Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Ruben O. Donis

rvd6@cdc.gov (ROD); bpr5@cdc.gov (LMC)

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: LMC ROD SRZ JRB TLW NJC. Performed the experiments: AJ LMC EW WS MGM GMP CR MJH. Analyzed the data: AJ LMC TLW MGM SZ ROD. Wrote the paper: AJ LMC JV SZ TLW NJC JRB ROD.