Immunity that is present at birth is called what?

Immunity that is present at birth is called what?

• A. Inherited Immunity
• B. Acquired Immunity
• C. Active Immunity
• D. Passive Immunity

Answer: (A)

Immunity you're born with comes from the body's natural defenses that are ready from birth. This kind of protection is inherited in the sense that your genes provide the baseline, built-in defenses you don’t have to acquire later. It includes things like the skin and mucous barriers plus immediate-response immune cells that act quickly when invaders appear. That’s why this option fits best for immunity present at birth. Other ideas describe immunity that isn’t already present at birth. Acquired immunity is gained after exposure to pathogens or vaccines, as your body learns to recognize and fight specific invaders. Active immunity refers to your own immune system actively producing antibodies in response to an antigen, whether from infection or vaccination. Passive immunity means antibodies come from someone else (like maternal antibodies) rather than from your own immune system.

Immunity you're born with comes from the body's natural defenses that are ready from birth. This kind of protection is inherited in the sense that your genes provide the baseline, built-in defenses you don’t have to acquire later. It includes things like the skin and mucous barriers plus immediate-response immune cells that act quickly when invaders appear. That’s why this option fits best for immunity present at birth.

Other ideas describe immunity that isn’t already present at birth. Acquired immunity is gained after exposure to pathogens or vaccines, as your body learns to recognize and fight specific invaders. Active immunity refers to your own immune system actively producing antibodies in response to an antigen, whether from infection or vaccination. Passive immunity means antibodies come from someone else (like maternal antibodies) rather than from your own immune system.