Immunization and vaccinations are services that provide protection against a variety of diseases. Vaccines work by exposing the body to a weakened or inactive form of a virus or bacteria, which helps the body develop immunity to the disease. Immunizations are typically given in a series of shots, over a period of time.
The goal of immunization programs is to protect as many people as possible from preventable diseases. Immunizations are especially important for young children, who are more vulnerable to infection. Immunizations can also help protect people who are at high risk of getting sick, such as older adults and people with chronic health conditions.
