How Do Vaccines Work?

With a little scientific trickery, the same pathogen that causes a disease can end up protecting us against it
“A vaccine is composed of a weakened version of a true infection, say a virus or bacteria, or some part of that virus or bacteria that can stimulate your immune system,” said Jonathan A. Runstadler, a professor of immunogenetics at Cummings School.
February 25, 2020


Learn more from Tufts experts—everything from why we forget and why kids like animals to how fat affects us and what the best way to wash your hands is.