Perhaps I'm off base here as I am not a doctor and did not stay at a holiday inn express last night, but the H1N1 virus is pretty much useless in my estimation.
To become the big killer everyone fears it would have to mutate alla 1918, starts easy the latter part of winter/spring and the next fall mutates into a pandemic killer. You need a new flu shot every year because the one from last year will not protect against mutated or newer strains of the flu virus. So if to become the killer people fear the virus has to mutate, I see limited benefit.