Many types of germs can cause illness or disease. Viruses have the potential to destroy cells in the human body that are healthy. Germs are all around us so it is difficult to avoid them completely. But, there are some practices that can help to avoid picking up some germs. The easiest thing that can be done is to wash hands before eating and after using the restroom. The following looks at specific types of germs and highlights things that can help to avoid getting sick.