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Salmonella-tainted eggs from big producer in Iowa have sickened at least 1,200

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An Iowa egg producer is recalling 228 million eggs after being linked to an outbreak of salmonella poisoning. They were sold across the country and packaged under a number of names.

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Washington Post Staff Writer
Friday, August 20, 2010

Salmonella-infected eggs traceable to a large egg producer in Iowa may have caused as many as 1,200 cases of intestinal illness in at least 10 states in recent weeks, according to an investigation by state and federal epidemiologists.

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Wright County Egg has voluntarily recalled 380 million eggs, some laid as long ago as May 17. The vast majority have already been consumed. The eggs went to distribution companies in 17 states, mostly west of the Mississippi River, but were then sold nationwide.

State and local health departments, assisted by the Centers for Disease Control and Prevention, are studying cases of salmonella illness in Arizona, Connecticut, Massachusetts, Maryland, North Carolina, Nevada, Oregon, Pennsylvania, Tennessee and Texas, according to the FDA. Officials at the Maryland Department of Health and Mental Hygiene, however, said they know of no cases appearing to be linked to the Iowa eggs.

While the sale of fresh eggs from Wright County Egg is stopped for the moment, the number of illnesses is expected to rise in the next few weeks as previous cases come to the attention of the health authorities and some new infections occur.

Tests of the company's hen houses and eggs, which are produced at five farms in the Central Iowa towns of Galt and Clarion, are not yet complete, an official from the Food and Drug Administration said Thursday.

Eggs can become infected by the salmonella bacterium by being laid by infected hens, or by contamination during storage or packaging.

The outbreak occurred just as new federal regulations designed to prevent salmonella contamination of eggs took effect on July 9.

The rules, under development since 2004, require egg farms of a certain size to test for "environmental contamination" by salmonella bacteria, which is carried in the feces of many species; limit access to chicken houses; control rodents, which can contaminate chicken feed with feces; clean and disinfect poultry houses under certain circumstances; and hold and transport eggs at a cool temperature.

Many states, as well as egg-producer associations, have voluntary "egg quality assurance" programs with guidelines similar to those that are now mandatory. A spokeswoman for Wright County Egg, Hinda Mitchell, said the company has voluntarily followed the new rules "for several years."

In a telephone briefing, however, Sherri McGarry of the FDA's Center for Food Safety and Applied Nutrition told reporters: "We do believe that the outbreak could have been prevented."

Maryland had 809 confirmed cases of salmonella infection last year, said David Blythe, Maryland's state epidemiologist. About one-third are caused by Salmonella enteritidis (SE), the species sometimes found in raw eggs. "At this point, we do not have any SE cases in Maryland definitively linked to recalled eggs, but we'll keep looking," Blythe said.

The bacterium causes nausea, vomiting and fever. In healthy people, it rarely causes severe illness. In people with a weak immune system -- and especially in AIDS patients -- salmonella can cause life-threatening bloodstream, blood vessel or brain infections. In 2004, there were about 1.4 million salmonella infections from all causes (not just food consumption), with 14,264 hospitalizations and 427 deaths.


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