Final answer:
Vaccination is the process of administering a vaccine to protect an individual from infectious diseases by triggering an immune response.
Step-by-step explanation:
Vaccination is the process of administering a vaccine to make an individual protected from contracting an infectious disease.
Vaccination involves exposing a person to a modified pathogen, usually through a shot, which triggers an immune response without causing the actual illness. The body produces memory cells specific to the antigen, providing long-term protection against the disease.
Vaccines can contain weakened forms of a pathogen, dead pathogens, or genetically engineered pieces of a pathogen, which stimulate the immune system to develop immunity to the disease.