What is the 'super' K flu variant and is it too late for a vaccine?

What is the 'super' K flu variant and is it too late for a vaccine?




Much of the concern this flu season is coming from the spread of subclade K, a subtype of influenza A. Similar subtypes have historically caused more hospitalizations and deaths than other strains. 



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Sophie Clearwater

Vancouver-based environmental journalist, writing about nature, sustainability, and the Pacific Northwest.

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