About the Authors

Oliver W. Morgan

Affiliation Division of Emerging Infections and Surveillance Services, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Anna Bramley

Affiliation Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Ashley Fowlkes

Affiliation Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

David S. Freedman

Affiliation Division of Nutrition and Physical Activity and Obesity, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Thomas H. Taylor

Affiliation Division of Bacterial Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Paul Gargiullo

Affiliation Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Brook Belay

Affiliation Division of Nutrition and Physical Activity and Obesity, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Seema Jain

Affiliation Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Chad Cox

Affiliation Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Laurie Kamimoto

Affiliation Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Anthony Fiore

Affiliation Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Lyn Finelli

Affiliation Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Sonja J. Olsen

Affiliation Division of Emerging Infections and Surveillance Services, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Alicia M. Fry

afry@cdc.gov

Affiliation Influenza Division, 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: OWM PG BB LK AF LF SO AMF. Performed the experiments: OWM THT. Analyzed the data: OWM AB AF DSF THT PG SO AMF. Contributed reagents/materials/analysis tools: OWM AB AF DSF THT PG SJ CC AMF. Wrote the paper: OWM DSF PG BB SJ LK AF LF SO AMF.