Response of the National Biosurveillance Integration Center to the Emergence of Porcine Epidemic Diarrhea Virus in the United States

Introduction The United States Department of Agriculture (USDA) Animal and Plant Inspection Service (APHIS) announced the first diagnosed case of PEDV in U.S. swine in Iowa on May 17, 2013. PEDV subsequently spread rapidly among the domestic swine herds throughout the United States. As of August 20, 2014, PEDV had been detected in 30 U.S. states affecting more than seven million pigs since the epidemic began. In the first year of emergence, PEDV reporting was voluntary, but on June 5, 2014, the Secretary of Agriculture issued a Federal Order that all cases of swine enteric coronavirus diseases (SECDs), including PEDV, were required to be reported to the USDA APHIS. PEDV only affects swine and is not a public health concern. However, NBIC was interested in reporting on this disease due to the economic impact. Swine and pork products are valuable contributors to the domestic and international markets.