How to prevent infections
Infections are caused by microscopic organisms known as pathogens—bacteria, viruses, fungi, or parasites—that enter the body, multiply, and interfere with normal functions. Keeping hands clean is one of the most important steps we can take to avoid getting sick and spreading germs to others. Handwashing with soap removes germs from hands. This helps prevent infections because: People frequently touch their eyes, nose, and mouth without even realizing it.