"VANCOUVER -- Atlantic salmon farms around Vancouver Island have begun testing and formed a special outbreak management team after a virus outbreak at one farm led to a site quarantine and the cull of more than half a million fish."
"The farm most seriously affected by the virus is one run by Mainstream Canada, which confirmed tests conducted earlier this week showed the presence of infectious hematopoietic necrosis at its site on the Island’s west coast, located at Dixon Bay, north of Tofino, B.C.
A second farm announced Friday afternoon that the federal Department of Fisheries and Oceans has identified a “low positive result” for the same virus in coho salmon samples on a Sunshine Coast farm.
Grieg Seafood said further tests will be conducted next week."
Keven Drews reports for Canadian Press May 19, 2012.