Another off-farm Manitoba site turns up PEDv

Another unnamed “high-traffic” off-farm site in western Manitoba has been found to have the porcine epidemic diarrhea virus (PEDv) present — albeit briefly, the province reported Monday.

Manitoba’s office of the Chief Veterinary Officer on Monday did not mention any cases of the virus in hogs that had been at the site. The latest confirmation brings the province’s total of PEDv findings at high-traffic or “environmental” sites to eight.

Those eight sites include one each in southeastern and western Manitoba where a group of hogs was also confirmed, last week and earlier this month respectively, to have the virus.

In the case announced Monday, the high-traffic site has been “regularly” testing for PED, the CVO said, meaning the time frame for possible contamination and exposure of the virus to hogs passing through the site “is quite short.”

The CVO said Monday it’s now following up with farms and facilities that have had contact with the site, which in turn has taken measures “to reduce the possibility of further transmission.”

Examples of off-farm high-traffic sites would include hog assembly yards, abattoirs, truck-wash stations and livestock trailers.

Manitoba still has only one of Canada’s 60 on-farm cases in which animals have tested positive for the virus since PEDv first crossed into Canada in January. Of the remainder, Quebec and Prince Edward Island have reported one each while Ontario has reported 57.

In the U.S., where PEDv first appeared in early 2013, officials have since confirmed on-farm cases of PED at 6,019 properties across 29 states as of April 19, with further cases reported since then in Virginia, bringing the number of affected states to 30.

PEDv, which causes diarrhea, vomiting and dehydration in infected animals, can have mortality rates of up to 100 per cent in groups of very young nursing piglets. Estimates of hog deaths due to the virus in the U.S. have run in recent weeks from three million to as many as seven million. The virus is not considered a human health risk, nor a risk to food safety. — Network


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