👉 In vaccination, an injection of a vaccine is administered to a person. The purpose of this process is to prevent the development of certain diseases in humans by introducing the immune system with the appropriate antibodies or other substances that have been designed to fight off the pathogens responsible for causing those diseases. This type of immunization is often used to protect individuals from various infectious diseases, such as polio, measles, mumps, rubella (or chickenpox), and influenza.
