Mother Nature is a serial killer.
No one's better.
More creative.
But like all serial killers,she can not help the urge to want to get caught.
What good are all those brilliant crimes if no one takes the credit?
So she leaves crumbs.
Now,the hard part,why u spend a decade in school,is seeing the crumbs for the clues they are.
Sometimes the thing u 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.