ELMHURST, Ill. (WLS) -- Many have gotten their flu shots. But some doctors are concerned about a new strain of the flu called subclade K that is resistant to the vaccine just before people get together for the holidays.

As families gather for the big Thanksgiving feast, sharing a meal, conversation and possibly airborne germs could help spread the flu virus more rapidly. Last year's flu season was especially harsh, and some experts are predicting it could be the same or worse this season.

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"Last year, just after Thanksgiving, we went from seeing no patients to everyone and their grandma had the flu," said Dr. Kevin Emmerich, with Endeavor Health Elmhurst Hospital.

This year, the subclade K strain of the flu has already caused se

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