Event Brief
Nov 13, 2025 at 5:02 AM ET
Mutated flu strain spreading in Hong Kong, experts warn
By The BriefBrief
A mutated flu A H3N2 strain is spreading in Hong Kong, but vaccines still protect against severe illness.
WHO: Centre for Health Protection, health experts
WHAT: Emergence of a mutated influenza virus strain
WHEN: Nov 12, 2025 at 7:00 PM ET
WHERE: Hong Kong
WHY: To inform the public about the rising proportion of the mutated strain
How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.
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