Onions are being recalled in the United States and Canada because of a salmonella outbreak, and it has sickened at least 516 people in the two countries, according to Business Insider.
Thomson International, a produce supplier in Bakersfield, Calif., said that it would recall all red, yellow, sweet yellow and white onions shipped since May 1 because of possible contamination.
Grocery stores including Kroger and Walmart sell Thomson International onions. Thomson International recalled onions that had been shipped to all 50 states and are sold under a variety of brand names, including Thomson Premium, TLC Thomson International, Tender Loving Care, El Competitor, Hartley's Best, Onions 52, Majestic, Imperial Fresh, Utah Onions, Kroger and Food Lion.
While U.S. and Canadian investigators have only linked red onions to the salmonella outbreaks, Thomson International recalled all onion varieties because of the possible cross-contamination. Customers, restaurants, grocery stores and suppliers should dispose of any Thomson International onions they've purchased.
"FDA recommends that anyone who received or suspects having received onions from Thomson International, Inc. use extra vigilance in cleaning and sanitizing any surfaces and containers that may have come in contact with these products to reduce the risk of cross-contamination," the agency said in a statement. "This includes cutting boards, slicers, counter tops, refrigerators and storage bins."