What term describes immunity that occurs when a person has contracted and is recovering from a disease?

• A. Naturally Acquired Immunity
• B. Artificially Acquired Immunity
• C. Passive Immunity
• D. Innate Immunity

Answer: (A)

When immunity develops after you contract a disease and recover, it’s a form of active immunity that occurred naturally. Your immune system responded to the infection, produced antibodies, and created memory cells so you’re protected against that disease in the future. Since this protection came from a natural infection and your own immune response, the term fits best is naturally acquired immunity.

This differs from artificially acquired immunity (like vaccines or antibody transfers), passive immunity (protection provided by borrowed antibodies and doesn’t involve your immune system building memory), and innate immunity (the body’s general, non-specific defenses present from birth).