The one case in each of Manitoba, Quebec and PEI are being successfully contained and no new cases are reported other than in Ontario. This remains a great news story and a message to Ontario![Source: This update is provided by Dr. Doug McDougald].
Ontario PED Control and Elimination Plans — April 5, 2014 In order to support the control and elimination of PEDV from the Ontario industry, the Ontario Swine Health Advisory Board (OSHAB) will incorporate PED into the area regional control and elimination (ARC&E) program.
Program Goals and Approach
To contain and eliminate PEDV from pig farms by November, 2014 and have a containment plan in place at other industry collection points such as assembly yards by fall 2014.
We will work towards this goal with guidance from OSHAB, support from the veterinarians of the positive cases and the participation of producers and the industry.
Actions will include:
- Investigate current and new cases
- Request participation of these producers in the ARC&E program
- Identify and solve primary biosecurity gaps
- Develop a farm or system specific containment plan
- Develop a farm or system specific elimination plan
- Communicate with producers and the industry
There will be continued support available for the diagnostics associated with clinical triggers from OMAF – please continue in your vigilance in recognizing potential clinical signs and submitting samples for testing. As well, support will be available through the OSHAB ARC&E program for the development of PED control and elimination plans and for targeted research projects to expand our understanding of effective PEDV elimination and disinfection.
Ontario PED Update There are now 48 diagnosed cases of PED with an estimated 100 sites to be contaminated with planned pig movement. A listing of the cases can be seen at http://www.ontario.ca/swine.
There are 2 positive nursery sites emptied, cleaned and have new pigs; testing in the first nursery at four weeks post placement (12 ropes) is negative. Other related testing show the positive nursery pigs (3 weeks post-infection) placed in a finisher and at four weeks post-placement 1 of 9 ropes with borderline positive with the rest negative. Fits the science.
There are 2 late finisher positives that attempted clean up and failed. Many of these late finisher cases will be cleaning the sites next turn when it is warm. Containment plans continue.
A Wean to Market barn waited 7 weeks and with no real plan on sanitation or biosecurity introduced weaned pigs and they broke with PED. No surprise and no vet oversight.
Most transporters continue to pay attention with some small number (too small) doing routine sampling and others now starting trailer/cab/wash bay sampling after transporting positive pigs to validate sanitation protocols. The message is protocols work for the transport sector and we just need everyone to just do it!
As illustrated in this figure from CSHIN, current information show the first cluster of cases were primarily linked to contaminated plasma in sow and nursery barns but the second cluster of PED cases are primarily associated with finisher barns. The majority of these finisher barn cases are linked to market hog transport using dirty trucks. This cluster remains driven by a small number of producers and transporters. Note: This is taken from an Ontario Swine Health Board (OSHAB) information release.