date:May 29, 2013
U.S. hog producer with 20 million hogs, according to the USDA. While only seven farms have had confirmed cases since May 17, more cases are expected as labs sift through samples, say sources investigating the outbreak.
Colorado, Indiana, Illinois and Minnesota reportedly have positive tests for PEDV, according to state veterinarians and agriculture department officials, and the National Veterinary Services Laboratory in Ames, Iowa.
PEDV, most often fatal to very young pigs, causes diarrhea, v