Viruses are a very tiny organism that lives on the human body. Some viruses are obvious to the human stripped eye and some are not unmistakable. These viruses are very dangerous and dreadful leading to so many unknown diseases. These tiny germs so-called viruses are made up of genetic material inside of a protein coating. This infection causes illnesses like normal cool, influenza, and warts. They also cause severe infectious diseases like HIV/AIDS, smallpox, and Ebola. These viruses can kill, damage, change the cells of a human being and make you sick. Different types of viruses attack different parts of cells in your human bodies such as your liver, respiratory system, or blood.