Tote Bags Responsible for Pig Deaths

Last year, a virus killed 7 million pigs, and although the U.S. Department of Agriculture (USDA) knew the culprit—Porcine Epidemic Diarrhea—it didn’t know why the pigs were getting it. After investigating possible ways the virus found its way onto farms—including faulty lab protocols, ingredients in pet treats, and even birds bringing the virus—they found that the culprit was tote bags.

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