By , Rachael Rettner
Published August 30, 2016
About 30,000 cases of precut vegetables are being recalled in many Southeastern states because they could be contaminated with Listeria. But how, exactly, do these bacteria get into veggies?
This week, the food manufacturer Country Fresh announced a recall of several of its vegetable products — including precut onions, mushrooms and peppers — after one of its products being sold in a Georgia grocery store tested positive for Listeria bacteria. The recall affects products sold at a number of grocery stores — including Walmart, Harris Teeter and Winn-Dixie — in nine Southern states (Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee and Virginia).
Listeria is found naturally in soil and water, and animals can carry the bacteria without appearing sick, according to the Centers for Disease Control and Prevention. Raw vegetables can become contaminated with Listeria either through contact with soil or with animal manure that is used as fertilizer, according to the Mayo Clinic.
From there, Listeria may get into a food processing factory, where it might live for years on equipment, according to the CDC. Unlike many other types of bacteria, Listeria can grow in the colder temperatures of refrigerators and freezers. "It's a pathogen that's particularly problematic in food-processing plants because it really likes cold, moist, dark environments," Benjamin Chapman, a food safety expert at North Carolina State University in Raleigh, told Live Science in a 2015 interview.
Other foods that have been historically linked with Listeria outbreaks include raw milk, unpasteurized soft cheeses and deli meats, Chapman said.
So far, there have been no reported cases of anyone becoming sick with Listeria from Country Fresh's recalled vegetables, Country Fresh said in a statement.
But Listeria infections can be serious, and even deadly, particularly for certain groups of people, including young children, pregnant women, the elderly and people with weakened immune systems. The infection can cause fever, muscle aches and diarrhea, and in pregnant women, it may cause miscarriage or stillbirth, the CDC says.
The CDC offered the following general recommendations to reduce the risk of Listeria infection:
Original article on Live Science.
Copyright 2016 LiveScience, a Purch company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
https://www.foxnews.com/health/how-does-listeria-get-into-veggies