(file photo)

With flu season arriving, the Illinois Department of Public Health are reminding residents to get a flu shot this Winter.

As ABC News has been reporting, the U.S. winter flu season is off to its earliest start in more than 15 years. They report that an early barrage of illness in the South has begun to spread more broadly, and there’s a decent chance flu season could peak much earlier than normal. ABC reports that some experts believe the early start could mean a severe flu season while others say it is too early to tell.

In Illinois, Flu cases are picking up but haven't peaked yet, according to IDPH Director Dr. Ngozi Ezike, who says there's definitely still time to be vaccinated.

Dr. Ezike says other things you can do to avoid spreading the flu include washing your hands frequently, covering your cough and sneezes and staying home when you're sick.