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Question
Distinguish between active immunity and passive immunity.
Solution
| No. | Active Immunity | Passive Immunity |
| a. | When resistance is developed by individuals as a result of an antigenic stimulus it is called active immunity. |
When ready-made antibodies are directly given to protect the body against foreign agents, immunity is called ‘Passive immunity’. |
| b. | The types of active immunity are natural acquired active immunity and artificial acquired active immunity. | The types of passive immunity are natural acquired passive immunity and artificially acquired passive immunity. |
| c. | It has no side effects. | It may cause a reaction. |
| d. | It provides relief only after a long period. |
It provides immediate relief. |
| e. | It is long-lasting immunity. | It is short-lived immunity. |
| f. | e.g. Polio vaccine, BCG vaccine, etc. | e.g. Rabies vaccine, maternal antibodies, etc. |
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