What are the Different Types of Viruses?

There are so many types of viruses in the world. Some are not even known yet. Some of them can be as simple as a cold and some can cause deadly diseases. Most of viruses can be put in a classification by the way they look under the micro scope, and some they really do not know how they came to be. People are still researching many viruses and will be for many years to come. For more information, look here: