| Authors: |
Shepard SS; Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America., Davis CT; Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America., Bahl J; Laboratory of Virus Evolution in Program of Emerging Infectious Diseases, Duke-NUS Graduate Medical School, Singapore, Singapore ; Center for Infectious Diseases, The University of Texas School of Public Health, Houston, Texas, United States of America., Rivailler P; Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America., York IA; Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America., Donis RO; Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America. |