What act or practice of inoculating someone with vaccine as a protection against disease?

The act of inoculating someone with a vaccine to protect against disease is known as vaccination. This process involves introducing a weakened or inactive form of a pathogen, or a piece of it, into the body to stimulate the immune system. The immune response generated helps the body recognize and fight off the actual pathogen if encountered in the future, thereby providing immunity to the disease. Vaccination is a critical public health measure that has helped control and eradicate various Infectious Diseases.