Page 17 - Adams Rib

To kill these resistant bugs the hospital uses

another, more powerful germ-killer:

It wipes out nearly all the bugs But a few survive

►

And soon the resistant
They breed strain is thriving

The resistance to germ-killer chemicals is

ALREADY IN THE GERMS.

This proves that not all germs are the same.

Even within a species there are slight

variations. Some of these variations give

those germs an advantage.