Question

A person is injected with gammaglobulin against hepatitis B. It is

• A. Artificially acquired active immunity
• B. Naturally acquired active immunity
• C. Artificially acquired passive immunity
• D. Naturally acquired passive immunity

Answer 1

Answer: (C)

Artificially acquired passive immunity

• Gammaglobulin is a class of globulins which are immune molecules that are produced by the immune system in response to the invasion of the body of agents that are perceived by the system as being foreign. Most significant globulins are immunoglobulins.
  
• Artificially acquired passive immunity is a short-term immunization by the injection of antibodies such as gamma globulin that are not produced by the recipient's cells.
  
• Hence, a person injected with gammaglobulin against hepatitis B is artificially acquired passive immunity.

So, the correct answer is 'Artificially acquired passive immunity'.