Viral Infection

• GBOU VPO "Kazan State Medical University" of Ministry of Health of Russian Federation — Kazan', Russia
• City Pediatric Outpatient Clinic number 5 — Perm, Russia
• Research Institute of Influenza, Ministry of Healthcare of Russian Federation — Saint Petersburg, Russia
• Saratov State Medical University named after V. I. Razumovsky — Saratov, Russia

• GBOU VPO "Kazan State Medical University" of Ministry of Health of Russian Federation — Kazan', Russia
• Krasnoyarsk State Medical University named after Prof. V.F.Voino-Yasenetsky — Krasnoyarsk, Russia
• I.M. Sechenov First Moscow State Medical University — Moscow, Russia
• Novosibirsk State Medical University — Novosibirsk, Russia

• Research Institute of Influenza — Saint Petersburg, Russia
• Saratov State Medical University named after V. I. Razumovsky — Saratov, Russia

Not specified

• The Children's Hospital of Philadelphia — Philadelphia, Pennsylvania, United States

• Johns Hopkins University — Baltimore, Maryland, United States

• Limoges University Hospital — Limoges, France

• George Washington University Hospital — Washington D.C., District of Columbia, United States

• Cincinnati Children's Hospital Medical Center — Cincinnati, Ohio, United States