I really, really doubt however that this Swine Flu is a bio-weapon. It is the usual mutation, albeit a big leap of a mutation.
I doubt it too, but this would be a much more effective way to cause widespread disruption that say anthrax IMO.
This disburses so easily, and wide spread infection is all but a foregone reality. There is no cure for it. For anthrax you can give an antibiotic, and alleviate the problem. The flu more or less has to run it’s course. If it’s a lethal enough strain, good luck.