How do active immunization and passive immunization differ in terms of protection?

How do active immunization and passive immunization differ in terms of protection?

• A. Passive immunization provides long-term immunity.
• B. Active immunization transfers antibodies directly to provide immediate protection.
• C. Active immunization stimulates the immune system to produce protection.
• D. Passive immunization stimulates the immune system to produce protection.

Answer: (C)

Active immunization trains the immune system by introducing an antigen that prompts the body to produce antibodies and memory cells. Protection develops over time as the immune system builds this response, and it tends to be long-lasting because memory cells enable a faster, stronger reaction upon future exposure. Passive immunization provides immediate protection by delivering ready-made antibodies, but it is temporary since those antibodies degrade and no lasting immune memory is created. So, the option that states active immunization stimulates the immune system to produce protection is the best match, because it captures how vaccination leads to an enduring, self-generated immune response rather than just supplying antibodies.

Active immunization trains the immune system by introducing an antigen that prompts the body to produce antibodies and memory cells. Protection develops over time as the immune system builds this response, and it tends to be long-lasting because memory cells enable a faster, stronger reaction upon future exposure. Passive immunization provides immediate protection by delivering ready-made antibodies, but it is temporary since those antibodies degrade and no lasting immune memory is created. So, the option that states active immunization stimulates the immune system to produce protection is the best match, because it captures how vaccination leads to an enduring, self-generated immune response rather than just supplying antibodies.