Our immune system does a wonderful job at protecting us, but is nearly impossible for our immune system to effectively fight off every disease that we will encounter. Because of this we will get sick, but there are many many measures we can take to prevent getting infections. Infectious agents can enter the body through: skin contact, inhalation of airborne germs, ingestion of contaminated food and water, tick/mosquito bites, or sexual contact. Washing your hands is one of the most common and easiest ways to prevent yourself from infection. Getting vaccinated is another way to reduce your chances of contracting many diseases. Preparing food safely is a very important measure to take when preventing illness, because this will not only infect you but the people you are serving as well. Be sure not to share personal items with others, such as a toothbrush, hairbrush, or a razor, items like this most often carry the most bacteria. Practicing safe sex is another measure that you can take to prevent many types of infections.