"Mother Nature is a serial killer. No one’s better or more creative. But like all serial killers, she can’t help the urge to want to get caught. And what good are all those brilliant crimes, if no one takes the credit? So she leaves crumbs. Now, the hard part is seeing the crumbs for the clues they are. Sometimes the thing you thought was the most brutal aspect of the virus, turns out to be the chink in its armor. And she loves disguising her weaknesses as strengths."