The risk from the recalled shrimp is "quite low," said Donald Schaffner, a food safety expert at Rutgers University. Cesium-137 is a byproduct of nuclear reactions.
Walmart recalls frozen shrimp over potential radioactive contamination
toggle caption Charles Krupa/AP
Walmart has recalled frozen, raw shrimp sold in 13 states because federal health officials say it could have potential radioactive contamination.
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