What Is the ‘Super Flu’ That Is Spreading in Europe and the United States?
WorldBy Ritsuko Kawai1/2/20261 min read
The “super flu” behind outbreaks in the US and UK is a new variant of influenza A H3N2, subclade K. Existing vaccines appear to be insufficiently effective against the virus.
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The spread of influenza became more severe this fall, particularly in the United States and the United Kingdom. The US Centers for Disease Control and Prevention has designated the 2024-25 flu season