MICROANATOMY

Detailed explanation-1: -Natural immunity is acquired from exposure to the disease organism through infection with the actual disease. Vaccine-induced immunity is acquired through the introduction of a killed or weakened form of the disease organism through vaccination.

Detailed explanation-2: -Examples of active immunity include a person’s resistance to strep throat due to a previous infection or a person’s immunity to polio due to the polio vaccine. Types of active immunity can either be natural active immunity or artificial active immunity.

Detailed explanation-3: -Two types of immunity exist-active and passive: Active immunity occurs when our own immune system is responsible for protecting us from a pathogen. Passive immunity occurs when we are protected from a pathogen by immunity gained from someone else.