Question

Active immunity means ______.

Options

• resistance developed after disease

• resistance developed before disease

• increasing rate of heart beat

• infection of AIDS virus

Answer 1

Active immunity means resistance developed after disease.

Explanation:

Active immunity refers to the resistance developed by the body after it has been exposed to a disease or a pathogen. This immunity arises as the body’s immune system produces memory cells and antibodies in response to the infection, providing long-lasting protection against future infections by the same pathogen. Active immunity develops naturally after recovering from a disease or artificially through vaccination.