Which term describes immunity conferred by introducing antibodies from another individual?

Which term describes immunity conferred by introducing antibodies from another individual?

• A. Allergy
• B. Alloimmunity
• C. AIDS
• D. Artificial passive immunity

Answer: (D)

Immunity conferred by introducing antibodies from another individual is a form of passive immunity. Protection comes from antibodies produced outside the recipient’s body, transferred into them rather than generated by their own immune system, so it acts immediately but is temporary. Because the antibodies are supplied externally, this is artificial passive immunity, such as administering immune globulins or antisera. This differs from active immunity, where the body makes its own antibodies after infection or vaccination. Allergies describe an excessive immune reaction to benign substances, AIDS is an illness caused by HIV, and alloimmunity refers to immune responses against non-self antigens from another individual rather than the transfer of antibodies to provide protection.

Immunity conferred by introducing antibodies from another individual is a form of passive immunity. Protection comes from antibodies produced outside the recipient’s body, transferred into them rather than generated by their own immune system, so it acts immediately but is temporary. Because the antibodies are supplied externally, this is artificial passive immunity, such as administering immune globulins or antisera. This differs from active immunity, where the body makes its own antibodies after infection or vaccination. Allergies describe an excessive immune reaction to benign substances, AIDS is an illness caused by HIV, and alloimmunity refers to immune responses against non-self antigens from another individual rather than the transfer of antibodies to provide protection.