Salmonella tied to Dutch salmon sickens hundreds

Chef Wolfgang Puck's smoked salmon on Oscar flatbread with caviar for the 84th Annual Academy Awards Governors Ball is displayed at the Oscar food and beverage preview in Los Angeles on Feb. 23, 2012. AP Photo/Damian Dovarganes

Updated 3:40 p.m. ET

THE HAGUE, Netherlands A salmonella outbreak that has left hundreds of people sick in the Netherlands and the U.S. has been traced to smoked salmon, health authorities stated Tuesday.

The Netherlands' National Institute for Public Health and the Environment (RIVM) said the salmon has been traced to Dutch company Foppen, which sells fish to many major Dutch supermarkets and to stores around the world, including the United States.

The institute said in a statement that around 200 people -- and likely more -- in the Netherlands and more than 100 people in the U.S. have been sickened.

Harald Wychgel, a spokesman for the Dutch public health institute, said the institute got its information on Americans becoming ill from the U.S. Centers for Disease Control and Prevention.

However, a representative for the CDC said the agency was investigating and had not confirmed any illnesses.

Health agencies around the world have access to the CDC database that records reported cases of salmonella. The CDC has a specific procedure for confirming an outbreak is from a specific cause, including interviews with those who become ill.

Costco Wholesale Corp., which sold the salmon in the U.S., said it had no reports of illness.

Foppen also estimated the number of infections was higher, and said this was "probably the tip of the iceberg" to the BBC.

Company spokesman Bart de Vries said that since the company set up a public information phone line two days ago, some 1,400 people had called and around 350 of the callers "reported symptoms consistent with a salmonella infection."

According to the U.S. Department of Agriculture's Food Safety and Inspection Service, salmonella is a type of bacteria that passes from the feces of people or animals to other people or animals. It causes an infection called salmonellosis, the source of 1.4 million cases of food-based illness and 400 deaths each year.

Symptoms of salmonellosis include diarrhea, abdominal cramps and fever within 8 to 72 hours after the contamination of when the food was eaten. People may also have chills, headache, nausea and vomiting for 4 to 7 days. Most people recover without medication, but it may be life-threatening for pregnant women, infants and young children, unborn babies and older adults. People with weakened immune systems, such as those who have HIV/AIDS or cancer, are also at a higher risk.

De Vries said that in the U.S., Foppen sells only to wholesaler Costco and that Costco would deal with any U.S. recall. It was not immediately clear how much contaminated fish had been sold in America. A Costco representative did not immediately have that information.

Costco got a call from Foppen regarding the recall late Monday afternoon, said Craig Wilson, vice president of food safety at Costco.

He said Costco immediately pulled the items from shelves and blocked its sale in stores, meaning the products won't scan at registers.

The smoked salmon was sold under the Foppen name, as well as under Costco's store-brand name, Kirkland.

Customers who purchased the items will be called by the company Tuesday to notify them of the recall, Wilson said. The calls will be followed up with a letter.

Wilson said Costco's independent testing of the smoked salmon hasn't yet turned up any positive results for salmonella. He said the company has not received any reports of illnesses.

Roel Vincken of the Dutch Food and Consumer Product Safety Authority, which carried out tests confirming the salmonella outbreak, said he had no information on a U.S. recall.

De Vries said the company did not believe contaminated fish had been sold to any other countries.

Foppen, which processes fish in the Netherlands and at a factory in Greece, is investigating the cause of the outbreak.

"The investigation into the cause is under way and has been narrowed down to one production line at one factory (in Greece)," De Vries told The Associated Press. "We can't yet say what the cause of the infection was."

Foppen has halted all production of smoked salmon until the investigation is completed, he added.

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