Bird Flu is only Animal to Human Transmission and it only happens a few times a year (90pct fatality). If it becomes human to human, then you're gonna be seeing news about this everywhere.
But the problem with this flu is that, like Dave said, is transmitting everywhere, even during the hot summers. And another thing, this is a type of flu that can be transmitted from and to Pigs, and maybe even other animals. If this thing mutates in Asia where the majority of the Bird Flu reports are, then we could be seeing something worse since 1918.