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UW-Extension: PEDv Likely to Flare Up Again
Wisconsin Ag Connection - 11/26/2014

A Swine Team expert with the University of Wisconsin-Extension says Porcine Epidemic Diarrhea virus infections may have slackened over the summer, but that doesn't mean producers should loosen their biosecurity efforts. Lyssa Seefeldt notes that as cooler temperatures set in, conditions become more favorable for the survival of PEDv.

"As we saw in the fall of 2013 through early spring of 2014, we will likely see PEDv cases rising again," Seefeldt notes. "Not all PEDv news is bad, though. Considerable research has be conducted in regards to PEDv since its detection in the U.S. in April of 2013."

Preliminary research from two universities have shown some important data in how PEDv survives in the environment. Iowa State University has shown that the PED virus can potentially be inactivated in trailers scraped of manure by heating to 160 degrees for 10 minutes or leaving the trailer unused at room temperature for seven days.

Another manure study came out of the University of Minnesota, which tracked PEDv survivability in manure pits and found that the virus is capable of surviving at least 14 days at 77 degrees and more than 28 days at around 40 degrees.

Signs of PEDv include vomiting, severe diarrhea, dehydration, loss of appetite. The virus appears to be more severe in young pigs.

Meanwhile, animal health officials say the best way to prevent the virus from spreading is to follow proper biosecurity practices on your farm and know the feed ingredients and their origin when feeding pigs.


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