Question:
Person recovering from attack of measles develops __________ to measles, for the life time.
Person recovering from attack of measles develops __________ to measles, for the life time.
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The body makes its own antibodies and memory cells after a natural infection, giving lifelong protection.
Updated On: Nov 12, 2026
- natural acquired passive immunity
- artificial acquired passive immunity
- natural acquired active immunity
- artificial acquired active immunity
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
When a person recovers from measles, the body has met the virus and made its own antibodies and memory cells. This is active immunity.
Step 2: Natural or artificial
The antigen exposure came from a natural infection, not from a vaccine. So it is naturally acquired.
Step 3: Why not passive
Passive immunity means ready-made antibodies and fades quickly. Memory cells formed here give protection for the whole life.
Final Answer:
The person develops natural acquired active immunity. \[ \boxed{\text{(C) }\text{natural acquired active immunity}} \]
When a person recovers from measles, the body has met the virus and made its own antibodies and memory cells. This is active immunity.
Step 2: Natural or artificial
The antigen exposure came from a natural infection, not from a vaccine. So it is naturally acquired.
Step 3: Why not passive
Passive immunity means ready-made antibodies and fades quickly. Memory cells formed here give protection for the whole life.
Final Answer:
The person develops natural acquired active immunity. \[ \boxed{\text{(C) }\text{natural acquired active immunity}} \]
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