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Question
Differentiate between active immunity and passive immunity.
Solution
| Sr. No. | Active immunity | Passive immunity |
| 1. | When a person's own cells develop immunity against a germ, it is called active immunity. | When readymade antibodies are given directly to the body to protect it, it is called passive immunity. |
| 2. | Immunity is not immediate, it takes a long time to show an effective response. | Immunity develops immediately. |
| 3. | The body does not have to face any other difficulty due to this. | The body has to face other difficulties due to this. |
| 4. | It works throughout life. | Its effect lasts for some time. |
| 5. | It has no side effects. | The body may react to antisera. It is known as serum sickness. |
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