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Multiple Choice
Which type of adaptive immunity is acquired as a result of vaccination?
A
Naturally acquired passive immunity
B
Artificially acquired active immunity
C
Artificially acquired passive immunity
D
Naturally acquired active immunity
Verified step by step guidance
1
Understand the concept of adaptive immunity: Adaptive immunity is the body's ability to recognize and defend itself against specific pathogens. It can be classified into active and passive immunity, and further into naturally acquired or artificially acquired immunity.
Define active immunity: Active immunity occurs when the immune system is stimulated to produce its own antibodies and memory cells in response to exposure to a pathogen or antigen. This can happen naturally (through infection) or artificially (through vaccination).
Define passive immunity: Passive immunity occurs when antibodies are transferred to an individual without the immune system actively producing them. This can happen naturally (e.g., antibodies passed from mother to child through breast milk) or artificially (e.g., injection of antibodies).
Analyze the role of vaccination: Vaccination introduces a harmless form of the antigen (e.g., inactivated or weakened pathogen) into the body, stimulating the immune system to produce its own antibodies and memory cells. This is an example of artificially acquired active immunity.
Match the correct type of immunity to vaccination: Since vaccination involves the immune system actively producing antibodies and memory cells in response to an artificial introduction of antigens, the correct answer is 'Artificially acquired active immunity.'