Karoun Dairies, Inc. voluntarily recalled and ceased production of 15 cheeses that the company distributes due to possible contamination with listeria, according to the Centers of Disease Control and Prevention (CDC). The recall was announced on September 16.

The bacterium, Listeria monocytogenes, can cause listeriosis, a serious infection usually caused by eating contaminated food. Symptoms include fever and muscle aches, sometimes followed by diarrhea or other gastrointestinal symptoms. Pregnant women, adults 65 and older and people with weakened immune systems are at higher risk for listeriosis.

While none of the cheeses have tested positive for listeria, the company is taking precautions due to the CDC's ongoing investigation into a listeriosis outbreak in nine states. The outbreak is linked to soft cheese. So far, 24 people in nine states have been infected in the outbreak, which CDC experts have been investigating since 2010. Of the 24 people, 19 reported eating soft cheese before falling ill.

The recall is limited to soft cheese. No other Karoun Dairies items are being recalled.

Related: Food Recalls: What You Need to Know to Stay Safe

The recalled cheese was sold under the following brands: Karoun, Arz, Gopi, Queso Del Valle, Central Valley Creamery and Yanni. The affected products include Red Pepper Feta Cheese Spread, Moroccan Cilantro Cheese Spread, Tandoori Garlic Cheese spread, Herbed Goat Cheese, Parmesan Cheese Spread and Chipotle Sage Cheese Spread.

These products were distributed to retail stores in Maryland, Kentucky, New Jersey, Ohio, Pennsylvania, Virginia, Washington, D.C., Minnesota and Illinois with a “Best By” date of October 6, 2015.

If you have consumed the recalled cheese and do not show any listeriosis symptoms, no tests or treatment are needed, according to the CDC.

Related: 7 Foods You Shouldn’t Eat When Pregnant and 6 You Should

If you had the recalled cheese in your home, the CDC recommends the following steps:

  • Throw away the cheese in a closed plastic bag and place it in a sealed trash can.
  • Wash the area where the cheese was stored with hot water and soap.
  • Wash any kitchen utensils that came in contact with the cheese in a dishwater. If you wash them by hand, wash them with hot water and soap and sanitize with a chlorine bleach solution.
  • Wash your hands after you finish cleaning up.

Related: Food Safety Fails

Consumers who have purchased any of these products are urged to dispose of them or return them to the place of purchase for a full refund. Call 1-866-272- 9393 or contact Picnic Gourmet Spreads at info@picnicspreads.com with any questions. You can view all of the UPC product codes in the recall here.

Muriel Vega is a writer with a passion for budget travel and staying safe while abroad. A Georgia State University graduate, she has over 6 years of editorial experience and has written for The Guardian, The Atlantic, The Billfold, among other outlets. In her free time, you can find her baking pies, playing with her two dogs and cat, or planning her next vacation. She spends way too much time on Twitter, one of her favorite social media channels. Her favorite safety tip: Make sure you have all the necessary shots before you go abroad.