A virus is infectious object that depends on living organisms’ cells to multiply. They are bad for living organisms and take over cells. Viruses infect a body and travel to a cell and inject its DNA code into the cell which will make the virus multiply and will destroy the cell. This is how viruses make us sick. There are many ways viruses can spread. One way is to touch a surface that someone with the virus may have touched. Another way is that a person with the virus may have sneezed near where you are standing. A very simple way is to wash your hands. When you wash your hands, the soap and water will wash the viruses off of your hands and down the drain. It is important to wash your hands for 20 seconds so that the soap and water have time to have your hands free of viruses.