Jane Clark - Rx for Disaster

Picture a tiny kink in the old genetic spiral,
Or a microscopic speck that's bacterial or viral.
Now, suppose they say, to our dismay, that we've become immune
To drugs we once regarded as a miracle--a boon.
In the worst case scenario undoubtedly we'd soon
Find among us
One humongous
Fungus.

Jane Clark

http://www.poemhunter.com/poem/rx-for-disaster/