Pigs - Photo by Maqi

A year later, the disease, called Porcine Epidemic Diarrhea virus (PEDv), has wiped out an estimated 10 percent of the U.S. pig population, helped push pork prices to record highs, and raised questions about U.S. oversight of the livestock industry and measures designed to protect the nation’s food supply.

The U.S. Department of Agriculture still has no clear idea about how PEDv entered the United States. With each passing day, veterinarians, hog producers and meat processors fear that other diseases may be finding the same pathway that allowed in PEDv.

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