Amazing.
This is the best of the series so far. I loved the point of view of this game, being the authority meant to stop the Swine and not a virus bent on world domination! Though it wasn't much of a challenge; most of the time I was pressing down on 2-4 states that were left with infection, and I never needed to blow up a city or have to deal with panic as the panic bar never reached the "A" in "PANIC".
Either way, the vaccine did something other than I expected and that kept things going and fun, I hope you make more games in this way. :3