Experts Warn This Winter Virus Will 'Likely Cause A Problem' This Year. Here's What To Know.

It's currently starting to hit the United Kingdom and is also popping up in Canada and Japan.

Here’s even more reason to get a flu shot: This year’s flu season is expected to be a bad one, potentially even worse than last year’s record-breaking season.

Last year was the worst flu season in 15 years for the United States, with high hospitalizations and infection levels.

“We also saw the highest number of pediatric flu deaths that we’ve seen since 2009-2010,” said Dr. Robert Hopkins, the medical director of the National Foundation for Infectious Diseases.

No one wants a repeat of last flu season, but we may be on track for that. Here’s what to know:

Flu season is off to a bad start in the U.K., and experts think that could happen here, too.