A positive test for listeria has caused a nationwide recall of peanut butter, cheese spreads, dips and salsa sold by Parkers Farm Inc.
The Minnesota-based company voluntarily recalled products with a code date after the listeria was discovered by a state test.
Product labels include Parkers Farm, Parkers, Happy Farms, Central Markets, Hy-Top, Amish Classic, Say Cheez, Win Schuler and Bucky Badger. A complete list of recalled products can be found here.
Affected products were sold at Hy-Vee, Cub, Rainbow, Byerly's, Lunds, Target, Whole Foods, Price Chopper, Nash Finch, Costco, Aldi, Wal-Mart and Brookshire stores.
No illnesses have been reported in connection with this recall. However, listeria poses a special problem -- the incubation period for listeria can last over two months.
Listeria is especially harmful to young people, pregnant women and the elderly or those with compromised immune systems. Symptoms of listeria infection include fever, muscle aches, nausea and diarrhea.