Vaccines

Vaccines create immunity that protects you from an infection without causing the suffering of the disease itself. Vaccinations protect you from certain diseases that can make you very sick, or even kill you. They boost your body's own defense system, which is also called the immune system. Sometimes vaccines prevent one disease. Sometimes they can be combined to protect you from some diseases with one shot. Scientists are looking at new ways to provide vaccines, such as oral or nasal spray.