Reply #56: It is thought...

[SaveElmer]

By many that smuggled and imported poultry is the primary way in which poultry flocks are getting infected. Migratory birds are a source, but probably not the primary source. Unless the virus mutates to a H2H form, the US is in little danger from migratory birds. The nature of our poultry industry here, which is closely monitored makes it unlikely there will be any significant outbreaks here.

An outbreak on a Turkey farm in France was probably due to migratory birds, but poultry is the main culprit I think.