Recommendations for influenza vaccine composition for the 2026-2027 northern hemisphere season
WHO
February 27, 2026
The World Health Organization (WHO) today announced recommendations for the viral composition of influenza (or “flu”) vaccines for the 2026-2027 northern hemisphere influenza season. The announcement was made following a 4-day consultation examining global influenza surveillance data.
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Originally published on WHO on 2/27/2026