While further testing is needed to more fully characterize the virus, the CFIA is taking a precautionary approach. The herd has been placed under quarantine, and the Agency is working with public health colleagues to determine the most appropriate next steps to ensure that public and animal health remain protected. The chance that these pigs could transfer virus to a person is remote.
http://www.inspection.gc.ca/english/corpaffr/newcom/2009/20090502e.shtml