Answer:
Immunization
Step-by-step explanation:
Immunization can be described as a process in which an organism is exposed to an infectious agent or its antigens. The infectious agent might be completely or partially killed do that in might not cause disease in the host cell. However, the host cell will produce antibodies against the pathogen and remember the pathogen. Next time if that pathogen infects the host cell, it will be recognized quickly and a response will be generated.