I have read where they expect it to arrive in Alaska this spring coming from spring migration of birds in Asia (more specifically eastern Russia). Pertaining to that I came across the following article regarding the Kamchatka Peninsula close to the Arctic Circle in eastern Russia. - OB1
Wildfowl hunting banned on Kamchatka for bird flu prevention -- 03.04.2006, 09.17
PETROPAVLOVSK-KAMCHATSKY, April 3 (Itar-Tass) - Wildfowl hunting has been banned on the Kamchatka Peninsula as a measure of bird flu spread prevention. The decision to introduce the ban was made by the Kamchatka regional emergencies commission.
Mass migration of birds begins on the peninsula in the middle of April. Up to 10 million migratory birds fly here from countries where bird flu cases have been registered.
Free vaccination of all poultry has begun in the Kamchatka region. Over 40,000 bird flu vaccine doses have been brought to the peninsula for this purpose. The Pionerskaya poultry farm where 205,000 chickens are kept has been transferred to a closed regime of work. A bird flu diagnostic laboratory has been set up in Petropavlovsk-Kamchatsky.