When you are sick there is something in your body that makes you feel nauseous, what is it? It’s bacteria. Bacteria are a germ that you can’t see with the naked eye. You might not be able to see them but there are billions of them all over you. Sometimes bacteria are bad but sometimes it helps us fight infections. One form of bacteria causes bad breath. If your gums and teeth are healthy then the problem is your tongue. You might already know, but bacteria come in all different shapes and sizes. Typically there are three certain shapes of bacteria round, rod-shaped, and spiral bacteria. They are also classified into groups very specifically. They are very small.
