Image of a person getting an injection with text showing the term vaccine in reference to preventing disease caused by pathogens and self-antigen immunoeducating agents for training the immune system to prevent noninfectious or pathogen-caused diseases, such as cancer, Alzheimer’s, and autoimmune disease. Compilation by Nancy R. Gough, BioSerendipity. Photo by U.S. Air Force photo by Staff Sgt. Benjamin W. Stratton.