The term artificial passive immunity is derived from what mechanism?

The term artificial passive immunity is derived from what mechanism?

• A. Vaccine-induced antibodies
• B. Administration of a specific antibody
• C. Exposure to an antigen
• D. Endogenous antibody production

Answer: (B)

Artificial passive immunity works by delivering ready-made antibodies from another source. The mechanism is administration of a specific antibody. This provides immediate protection because the antibodies are already present, but it’s temporary since these antibodies are cleared over time and no memory cells are formed. It’s different from active immunity, where the person’s own immune system must respond to a vaccine or to an exposure to an antigen and then produce antibodies and memory. Vaccine-induced antibodies are produced by the body (active), and endogenous antibody production refers to the body's own production after exposure or vaccination (also active). Examples of artificial passive immunity include immune globulin, antitoxins, and antivenoms.

Artificial passive immunity works by delivering ready-made antibodies from another source. The mechanism is administration of a specific antibody. This provides immediate protection because the antibodies are already present, but it’s temporary since these antibodies are cleared over time and no memory cells are formed. It’s different from active immunity, where the person’s own immune system must respond to a vaccine or to an exposure to an antigen and then produce antibodies and memory. Vaccine-induced antibodies are produced by the body (active), and endogenous antibody production refers to the body's own production after exposure or vaccination (also active). Examples of artificial passive immunity include immune globulin, antitoxins, and antivenoms.