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(WBIR) The Knox County Health Department began offering free flu shots on Monday.

Shots are available at the department's main location on Dameron Avenue of the West Clinic on Old Cedar Bluff. Clinics are open 8 a.m. to 4:30 p.m. Monday through Friday. Shots are free as long as supplies last.

The Centers for Disease Control and Prevention said flu cases are on the rise nationwide. As of Friday, 35 states reported widespread flu activity, including Kentucky, which is up from 25 the week before. These numbers, which come from the week ending on January 4, are normal for this time of year.

The CDC said Tennessee has "regional" flu activity, which is a step below "regional."