[Gritty]

Alaska is supposed to be the entry point for bird flu to the American hemisphere

You're right - if it comes in via migrating birds. That's the best possible case.

If it comes in via an airplane passenger in a form which is readily contagious to others, all bets are off...

[RightWhale]

If it comes in via an airplane passenger in a form which is readily contagious

That form does not exist at present.