"We found no evidence of Salmonella Saintpaul, the outbreak strain, during those investigations," said Dr. David Acheson, the agency's associate commissioner for foods.

该局的食品副专员大卫·艾奇逊博士说：“在调查期间，我们没有发现沙门氏菌爆发的源头。”

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No illnesses have been linked to this case, said Dr. David Acheson, FDA's associate commissioner.

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Wait until an inquiry into possible salmonella contamination is further along, advises FDA Associate Commissioner David Acheson.

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"In order to get cancer in lab animals you have to feed fairly high levels of the drug over a long term, " said Dr. David Acheson, the FDA's assistant commissioner for food protection.

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