What is the difference between bacteria, virus and germs?

Alot.: Germ is a lay term to describe all types of microbial organisms. Bacteria are single celled organisms that exist almost everywhere in the environment, on our skin, in our mouths, in our intestines etc. Viruses are sub-cellulat particles that contain a small piece of dna or rna contained in a protein envelope. Viruses are much smaller than bacteria and can even infect bacteria.Check a dictionary.