Porcine epidemic diarrhea, a nonzoonotic virus that infects swine, was recently identified for the first time in the U.S. on farms in a handful of states. This article outlines biosafety precautions farms can use to help limit the virus' spread. Sources of transmission likely include fomites and transportation vehicles, so proper disinfecting protocols are essential. Because the virus is new to the U.S., no immunity exists, meaning the entire U.S. swine population is at risk.
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