There’s a new kid on the block this cold and flu season — and it could prove worse than your average winter sniffles.

The flu strain known as subclade K is ringing alarm bells due to its potential severity and resistance to current vaccines, public health experts warn.

The strain is rapidly spreading internationally, with cases rising across the UK and Canada. And Japan declared a nationwide influenza epidemic unusually early, reporting over 6,000 cases and several hospitalizations of children.

Beware subclade K, which can bring worse symptoms than we’re used to in cold and flu season. Viacheslav Yakobchuk – stock.adobe.com

A variant of the H3N2 influenza A virus that dominates flu seasons, subclade K is already responsible for over half of US flu cases as of Nov. 15, according

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