Influenza, Human

• University of Alabama at Birmingham — Birmingham, Alabama, United States
• Arkansas Children's Hospital — Pulaski, Arkansas, United States
• Children's Hospital of Orange County — Orange, California, United States
• Children's Hospital and Health Center — San Diego, California, United States

• La Costa Pediatrics — Carlsbad, California, United States
• Santo Nino Medical Clinic — Panorama City, California, United States
• La Jolla Pediatrics — San Diego, California, United States
• Complete Family Care — Northglenn, Colorado, United States

• Hopital Saint Antoine — Paris, France

• Robert Koch Institute — Berlin, State of Berlin, Germany

• Urgences pédiatriques — Amiens, France
• Urgences pédiatriques CHU de Caen — Caen, France
• POSU pediatrique — Le Havre, France
• Urgences pédiatriques - CHU ROUEN — Rouen, France

• The University of Hong Kong, Queen Mary Hospital — Hong Kong, China

• Hospital Erasme — Brussels, Brabant, Belgium

Not specified

• UMN Investigational Site — Osaka, Japan
• UMN Investigational Site — Tokyo, Japan

Not specified