Event Brief
Feb 28, 2026 at 11:03 PM ET
Aggressive H3N2 variant prompts flu shot changes
By The BriefBrief
The emergence of a new H3N2 variant has led to modifications this year's flu vaccine.
WHO: Health officials
WHAT: Changes to flu shot
WHEN: Feb 28, 2026 at 9:57 PM ET
WHERE: India
WHY: To address the aggressive H3N2 variant
How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.
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