Influenza, Human

• GSK Investigational Site — Paramount, California, United States
• GSK Investigational Site — Sacramento, California, United States
• GSK Investigational Site — Newton, Kansas, United States
• GSK Investigational Site — Bardstown, Kentucky, United States

• UAB, Dept. of Ped., Div. of Infectious Diseases — Birmingham, Alabama, United States
• Univ. of South Alabama College of Medicine, Southeast Ped. ACTU — Mobile, Alabama, United States
• Phoenix Children's Hosp. — Phoenix, Arizona, United States
• Long Beach Memorial Med. Ctr., Miller Children's Hosp. — Long Beach, California, United States

Not specified

• City polyclinic №10 — Kazan', Russia
• Infectious Clinical Hospital No. 1 of the Moscow City Health Department — Moscow, Russia
• GBUZ NO Infections Clinical Hospital No.2 — Nizhny Novgorod, Russia
• Podolsk City Clinical Hospital №3 — Podolsk, Russia

• Saint Louis University - Center for Vaccine Development — St Louis, Missouri, United States

• Sichuan Center for Disease Control and Prevention — Chengdu, China
• Shanghai Municipal Center for Disease Control and Prevention — Shanghai, China
• Shanxi Provincial Center for Disease Control and Prevention — Taiyuan, China

Not specified

• General Academic Pediatrics — Pittsburgh, Pennsylvania, United States
• University of Pittsburgh Department of Family Medicine — Pittsburgh, Pennsylvania, United States

• Harvey Pediatrics — Jonesboro, Arkansas, United States
• Arkansas Pediatric Clinic — Little Rock, Arkansas, United States
• NuLife Clinical Research — Anaheim, California, United States
• Palm Beach Research Center — West Palm Beach, Florida, United States

• University of Nottingham — Nottingham, Nottinghamshire, United Kingdom