Which are about 100 times smaller than bacteria and unaffected by antibiotics?

Viruses. They are 100 times smaller then bacteria and unaffected by antibiotics

Viruses. It is 100 times smaller than a bacteria and its unaffected by antibiotics.

There are millions of kinds of viruses that enter into our body by inhaling through the lining of our respiratory systems like nose, throat, and lungs. Antibiotics do not work on viruses.