Yeah but the thing find i've found was in french ^^'
Actualy if the virus change into a form 'hightly infectious for human', it should in a form close from the 'spanish flu' (which killed over 40 millions people around the world ).
But not the same form exactly ( spanish flu = H1N1, avian flu = H5N1 ) cause it should be a more lethal form.
Scientists are curently working on sample of this virus found in a corpse buried in alaska in 1918...but they still don't manage to develop a vaccin.
This page deals with H5N1 mortality rate...frightening
http://www.cnsnews.com/ViewCommentar...20051012a.html