Orthomyxoviridae Infections

• Clinical Center of Serbia: Clinic for Infectious and Tropical Diseases — Belgrade, Serbia
• Clinical Center of Serbia: Clinic for Pulmonology — Belgrade, Serbia
• Institute for Students' Healthcare — Belgrade, Serbia
• Institute of Health Care of Workers of the Ministry of Internal Affairs — Belgrade, Serbia

• Beneficência Nipo Brasileira de São Paulo - Hospital Nipo Brasileiro — São Paulo, Brazil

• London, United Kingdom

• Northwestern University — Chicago, Illinois, United States
• Washington University / St. Louis Children's Hospital — St Louis, Missouri, United States
• Wake Forest University Health Sciences — Winston-Salem, North Carolina, United States
• Dell Children's Hospital — Austin, Texas, United States

• University of Rochester Medical Center Vaccine Research Unit (Outpatient) — Rochester, New York, United States

• GSK Investigational Site — Clermont-Ferrand, France
• GSK Investigational Site — Lille, France
• GSK Investigational Site — Paris, France
• GSK Investigational Site — Paris, France

• Federal state budgetary institution " Main military clinical hospital named after academician N. N. Burdenko " of the Ministry of Defence of the Russian Federation — Moscow, Russia

• Johns Hopkins Center for Immunization Research — Baltimore, Maryland, United States

• Ben Luc Health Center — Bến Lức, Long An Province, Vietnam

Not specified