Yeah, bird flu is really bad.
Why does this mostly affect the US? I've been abroad most of the year and eggs don't seem overly expensive.
The bird flu is mostly contained to North America. Birds fly north/south, not east/west, so so far there has been no reports of it moving across either ocean. This is why Europeans and Asians are terrified of bird flu transmitting between humans, because then an infected human could get on a plane and spread it there. So far, however, that threat remains unrealised.