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This appears to have been a successful strategy and once the commercial facilities in Fraser Valley were under control, regional (both US and Canadian) reports of wildlife and small farm outbreaks ended shortly thereafter. This story seems to have been overlooked since it was initially printed, perhaps because the significance was not apparent at the time.
http://www.thestar.com/news/canada/2...n_poultry.html
Half of B.C. deemed control zone in effort to stop avian flu in poultry
By: Terri Theodore The Canadian Press, Published on Tue Dec 09 2014
... Mike Dungate, executive director of the Chicken Farmers of Canada, said producers have been pushing for a larger control area.
“Because we lived through this in 2004,” he said. “In 2004, they made the control area too small at the start and had to enlarge it.”
A decade ago, a highly pathogenic strain of H7N3 avian flu swept through commercial farms and backyard coups in the Fraser Valley, resulting in the destruction of 17 million birds.
...
The control area is divided into three zones representing risk: infected, restricted and security.
An infected zone is a three-kilometre ring around an infected farm, a restricted zone sets up a 10-kilometre area around the farms and the security zone is the remainder of the control zone...
By: Terri Theodore The Canadian Press, Published on Tue Dec 09 2014
... Mike Dungate, executive director of the Chicken Farmers of Canada, said producers have been pushing for a larger control area.
“Because we lived through this in 2004,” he said. “In 2004, they made the control area too small at the start and had to enlarge it.”
A decade ago, a highly pathogenic strain of H7N3 avian flu swept through commercial farms and backyard coups in the Fraser Valley, resulting in the destruction of 17 million birds.
...
The control area is divided into three zones representing risk: infected, restricted and security.
An infected zone is a three-kilometre ring around an infected farm, a restricted zone sets up a 10-kilometre area around the farms and the security zone is the remainder of the control zone...
http://www.inspection.gc.ca/animals/.../1417921937351
USDA reports of infections (List can be sorted by state, date or virus.):
http://www.aphis.usda.gov/wps/portal...pacific_flyway
Wild bird cases from USGS/USDA:
http://www.aphis.usda.gov/wildlife_d...D%20STATES.pdf
ETA:
This Grain report from 2006 supports the focus on large commercial poultry farms as regional ecosystem reservoirs during outbreaks:
