CHICAGO Federal officials hunted for the source of a 17-state salmonella outbreak linked to three types of raw tomatoes, while the list of supermarkets and restaurants yanking those varieties from shelves and menus grew.
The U.S. Food and Drug Administration says Ohio tomatoes are not part of a salmonella outbreak linked to three types of raw tomatoes.
Ohio ranks fifth in tomato production nationwide.
Ohio Agriculture Director Robert Boggs says shoppers can buy Ohio tomatoes with confidence.
McDonald's, Wal-Mart, Burger King, Kroger, Outback Steakhouse, Winn-Dixie and Taco Bell were among the companies that voluntarily withdrew red plum, red Roma or round red tomatoes unless they were grown in certain states and countries.
In addition, officials at the Los Angeles Unified School District the nation's second largest said Monday they have "indefinitely suspended" serving uncooked tomatoes.
The FDA is investigating the source of the outbreak, agency spokeswoman Kimberly Rawlings said. "We are working hard and fast on this one and hope to have something as quickly as possible," Rawlings said Monday.
Cherry tomatoes, grape tomatoes, tomatoes sold with the vine still attached and homegrown tomatoes are likely not the source of the outbreak, federal officials said.
Also not associated with the outbreak are raw red Roma, red plum and round red tomatoes from Arkansas, California, Georgia, Hawaii, North Carolina, South Carolina, Tennessee, Texas, Belgium, Canada, Dominican Republic, Guatemala, Israel, Netherlands and Puerto Rico.
The Centers for Disease Control and Prevention has said that since mid-April, 167 people infected with salmonella with the same "genetic fingerprint" have been identified. At least 23 people have been hospitalized.
A 67-year-old cancer patient in Texas who health officials said was sickened by salmonella at a Mexican restaurant is believed to be the first death associated with the outbreak.
The death of Raul Rivera last week has been officially attributed to his cancer, but Houston health department spokeswoman Kathy Barton told the Houston Chronicle in Tuesday's editions that the salmonella strain was a contributing factor.
Rivera's wife said he was hospitalized after eating pico de gallo, a tomato-based condiment, in late May while celebrating good news about his cancer treatment.
Salmonella is a bacteria that lives in the intestinal tracts of humans and other animals. The bacteria are usually transmitted to humans by eating foods contaminated with animal feces.
Most infected people suffer fever, diarrhea and abdominal cramps starting 12 to 72 hours after infection. The illness tends to last four to seven days.
The Food and Drug Administration warned consumers in New Mexico and Texas as early as June 3 about the outbreak. The agency expanded its warning during the weekend and chains began voluntarily removing many red plum, red Roma or round red tomatoes from their shelves in response.
The salmonella causing the outbreak is a very unusual type called salmonella saintpaul, said FDA Commissioner Andrew C. von Eschenbach, who added it was not more virulent than other types of salmonella.
McDonald's, the world's largest hamburger chain, stopped serving sliced tomatoes on its sandwiches as a precaution, but will continue serving grape tomatoes in its salads because no problems have been linked to that variety.
The decision didn't upset Connie Semaitis, a 49-year-old travel agent in downtown Chicago, who bought a cheeseburger and a drink at a McDonald's during lunch hour Monday.
"I'd rather be safe than sorry," Semaitis said.
Tampa-based OSI Restaurant Partners LLC, which owns and operates eight brands including Outback Steakhouse, Carrabba's and Bonefish Grill, said it stopped serving all raw tomatoes other than grape tomatoes on Saturday evening. The company also instructed restaurants to discard salsa and other prepared foods containing raw tomatoes.
Burger King Corp. said it had withdrawn raw round red tomatoes from most of its U.S. restaurants, as well as locations in Canada and Puerto Rico and some other Caribbean islands. Some California restaurants continued using the tomatoes because they buy from growers in states the FDA has said are not involved in the outbreak, Burger King said.
Other restaurant operators that stopped serving most tomatoes: Yum Brands Inc., which owns Taco Bell, KFC, Long John Silver's and A&W All-American Food Restaurants; Darden Restaurants, which owns and operates six brands including Red Lobster and Olive Garden; Chipotle Mexican Grill Inc.; and Garden Fresh Restaurant Corp., which operates Souplantation and Sweet Tomatoes restaurants in 15 states.
Among retailers, Wal-Mart Stores Inc. the largest grocery seller in the U.S. is working with federal officials to ensure affected tomatoes are pulled from Wal-Marts, Neighborhood Markets and Sam's Club warehouse stores nationwide, spokeswoman Deisha Galberth said.
Galberth said the company is modifying orders to its stores and putting an electronic block at its registers as an added safety measure to keep the recalled tomatoes from being purchased.
Cincinnati-based Kroger Co., the nation's largest traditional grocery chain, said it pulled the three types of tomatoes from all its stores in 31 states on Sunday per the FDA advisory. The company had early last week pulled the tomatoes from stores in Texas and New Mexico.
Winn-Dixie Stores Inc., which operates 521 stores in five southern states, also stopped selling tomatoes involved in the FDA warning, as did Publix Super Markets Inc. Publix offered refunds to customers who bought the tomatoes before they were removed from shelves.
Trader Joe's, with more than 280 grocery stores in 23 states, also stopped selling the tomatoes in question and offered refunds, according to a statement from spokeswoman Alison Mochizuki.
Giant Eagle, which has 223 supermarkets in western Pennsylvania, West Virginia, Ohio and Maryland, said it also removed the tomatoes from store shelves; as did SuperValu Inc., which operates Jewel, Shaw's, Cub Foods, Acme and some Albertson's stores.
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