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WHO Information Meeting on the Composition of Influenza Virus Vaccines for Use in the 2026 Southern Hemisphere Influenza Season

26 September 2025 09:00 – 12:00 Japan Time
Sapporo, Hokkaido, Japan

Meeting venue

Asty Hall (4th floor, Asty45, Kita 4, Nishi 5, Chuo-ku, Sapporo, Hokkaido 060-0004)

Participants

Representatives and individuals from vaccine regulatory agencies, influenza vaccine manufacturers, members of the WHO Global Influenza Surveillance and Response System (GISRS), and other interested institutions.

Please be informed that registration is required and free of charge. Please register for the meeting on INDICO at the link below, by 12 September 2025 at

https://indico.un.org/e/VCM_SH_2025_InformationMTG

Please note that the UNOG accreditation and online registration system works better with the following browsers: Edge, Firefox, Chrome, Safari or Opera.

Provisional agenda

  • Opening and welcome
  • Selection of Chair
  • Summary of influenza activity in the world and virus characterization
  • Vaccine serology studies
  • WHO recommendation for the composition of influenza virus vaccines for use in the 2026 Southern Hemisphere influenza season
  • Availability of candidate vaccine viruses and reference reagents
  • Roundtable discussion
  • Closure of the meeting

Summary of zoonotic influenza viruses and update of candidate vaccine viruses will be published on WHO website before 5 October 2025.