CDC: Tainted Peanut Butter, 3 Deaths May Be Linked

King Nut Companies of Solon, Ohio, on Sunday asked its customers to stop using peanut butter under its King Nut and Parnell's Pride brands with a lot code that begins with the numeral "8." Company president and chief executive Martin Kanan said Monday that Minnesota's findings validated that decision.

"We did not want to wait around for the results," he said.

The peanut butter King Nut distributed was manufactured by Peanut Corporation of America, a Virginia company. In an e-mail earlier Monday, President Stewart Parnell said the company was working with federal authorities.

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The peanut butter was distributed to establishments such as care facilities, hospitals, schools, universities and restaurants. King Nut says it was not distributed for retail sale to consumers.

The CDC on Monday raised the number of confirmed cases to 410, from 399 as of Friday, and Mississippi became the 43rd state to report a case. All the illnesses began between Sept. 15 and Jan. 7, but most of the people became sick after Oct. 1.

Kanan held out the possibility that the contamination came from another source, since the salmonella was found in an open container.

"That means there's a possibility of cross-contamination, somebody could have been cutting a piece of chicken and then stuck the knife into the peanut butter for a peanut butter sandwich," he said. "There have been no tests that have come back positive on a closed container."

The Minnesota lab took 13 samples from the container, and four of the samples, taken from different parts of the container, tested positive for salmonella. Doug Schultz, a Minnesota Health Department spokesman, said if the sample was contaminated from another source, lab tests would be expected to show positive results from near the top of the container only.

But Schultz said lab workers also aim to test unopened containers of the peanut butter and are trying to get such samples from the distributor.

The peanut butter contamination comes almost two years after ConAgra recalled its Peter Pan brand peanut butter, which was eventually linked to at least 625 salmonella cases in 47 states.