By Steven Graves

CHICAGO (CBS) — Jewel-Osco now has a voluntary recall on bagged garden salad due to possible cyclospora contamination after multiple people have been made sick.

The company is pulling the Signature Farms brand of 12 ounce bags from store shelves in Illinois, Indiana and Iowa.

READ MORE: Man Punched During Armed Carjacking In Logan Square

These bags all have a “best if used by” date between May 16 and July 4, which is printed in the upper right corner on the front of the package.

There have been 23 cases of illness reported in Illinois because of the outbreak.

READ MORE: At Least 9 People Killed, 47 Wounded So Far In Chicago Weekend Gun Violence; 3-Year-Old Boy Among Survivors

Jewel-Osco is asking people who bought the salad to either throw it out of bring it to a store for a refund. 

Officials say the recall also affects stores Aldi and Hy-Vee.

Symptoms of cyclospora include diarrhea, loss of appetite and low grade fever. The illness can last months if not treated with antibiotics.

MORE NEWS: Some Haunted Houses Are Set To Open This Week In Chicago Area, But They Take All Year To Prepare

Officials urge anyone who has eaten this brand of bagged salad and is experience symptoms to get tested.