Influenza

• Adamas Investigational Site — San Francisco, California, United States
• Adamas Investigational Site — San Francisco, California, United States
• Adamas Investigational Site — San Francisco, California, United States
• Adamas Investigational Site — Hollywood, Florida, United States

• Carmichael, California, United States
• Chula Vista, California, United States
• La Mesa, California, United States
• Lincoln, California, United States

• Hoover, Alabama, United States
• Chandler, Arizona, United States
• Phoenix, Arizona, United States
• Anaheim, California, United States

• Emory Vaccine Center - The Hope Clinic — Decatur, Georgia, United States
• University of Iowa - Infectious Disease Clinic — Iowa City, Iowa, United States
• Baylor College of Medicine - Molecular Virology and Microbiology — Houston, Texas, United States
• Group Health Research Institute - Seattle — Seattle, Washington, United States

Not specified

• Yangzhong Center for Disease Control and Prevention — Zhenjiang, Jiangsu, China

• GSK Investigational Site — London, United Kingdom

• Guangxi Zhuang Autonomous Region CDC — Nanning, Guangxi, China

• Department of Pediatrics, Department of Clinical Sciences, Università di Milano, L. Sacco Hospital — Milan, Italy
• Institute of Paediatrics, University of Milan, Fondazione IRCCS "Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena" — Milan, Italy

• Hanover in Hackney Housing Association — London, United Kingdom
• Sanctuary Group Housing Association — London, United Kingdom