Last time we saw what the Shanti Virus did was in the exposed future where like 97% of the worlds population is dead due to it. But I wouldn't look past Danko doing that.
Cannot wait until "Cold Snap" next week, going to be the bomb (metaphorically not literally)!!
Perhaps Danko and his friends should put further developments into a virus like the shanti virus. Surely there is the possibility of aquiring this through research or manipulation of others. I would reccommend using Claires blood to revive Daphne and force Ando or Hiro to time travel. Of course all this is counter productive to the development of the story as new and exciting