avian flu is a economical problem at the moment. Company's in infected area's can't sell the chickens and stuff. Infectious rate from animal to people are very low, you almost have to do it with a chicken to get it.

If might mutate in to strain that will be transmittet from human to human or it might not. We don't know, but that risk has been here all the time. The media is just giving a lot more attention to it.

Vacins against a human to human strain of H5N1 are not availible for a very simple reason, there is not human to human strain of H5N1 yet and you can not predict how virusses mutate.

Tamiflu is a drugs that hopefully will reduce the spread of the virus inside your body, so your own body will have enough strenght left to fight it off. But that what we hope, but the virus can easily mutate in a diffrent way.