Influenza, Human

• Alberta Children's Hospital, University of Calgary — Calgary, Alberta, Canada
• Child and Family Research Institute — Vancouver, British Columbia, Canada
• Vaccine Evaluation Center, University of British Columbia — Vancouver, British Columbia, Canada
• Canadian Center for Vaccinology, Dalhousie University — Halifax, Nova Scotia, Canada

• McMaster University — Hamilton, Ontario, Canada
• Kingston, Frontenac, Lanark Health Unit — Kingston, Ontario, Canada
• University of Toronto, Mt Sinai Hospital — Toronto, Ontario, Canada
• Institut national de sante publique du Quebec — Québec, Quebec, Canada

• Calgary Health Services and Alberta Children's Hospital — Calgary, Alberta, Canada
• Capital Health District, Alberta Health Services — Edmonton, Alberta, Canada
• Child and Family Research Center — Vancouver, British Columbia, Canada
• Vaccine Evaluation Center, University of British Columbia — Vancouver, British Columbia, Canada

• Clinical Research Advantage, Inc. — Chandler, Arizona, United States
• Peninsula Research Associates — Rolling Hills Estates, California, United States
• Clinical Trials Center Pediatric Infectious Diseases and Clinical Trials — Aurora, Colorado, United States
• Tampa Bay Medical Research, Inc. — Clearwater, Florida, United States

• Korea University Ansan Hospital — Ansan, South Korea
• Hallym University Gangnam Sacred Hospita — Seoul, South Korea
• Catholic University Medical College, St. Vincent's Hospital — Suwon, South Korea

• 401 Paideia Jeronimo Salguero 2835 Piso 1 — Buenos Aires, Argentina
• 402 Hospital de Ninos Gallo 130 — Buenos Aires, Argentina
• 403 Instituto Medico Rio Cuarto Hipolito Yrigoyen 1020 — Córdoba, Argentina
• 405 Hospital Pediatrico Nino Jesus Castro Barros 650 — Córdoba, Argentina

Not specified

• Spartanburg Medical Research — Spartanburg, South Carolina, United States

• Grady Health System — Atlanta, Georgia, United States
• Emory University Hospital Midtown — Atlanta, Georgia, United States
• Dourron OB/Gyn Associates Clinic — Decatur, Georgia, United States
• New Millenium Obstetrics & Gynecology — Riverdale, Georgia, United States

• Miami Research Associates — South Miami, Florida, United States
• Johnson County Clinical Trials — Lenexa, Kansas, United States