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Questions
Differentiate the following and give examples.
Innate and acquired immunity
Differentiate between innate immunity and acquired immunity.
Distinguish Between
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Solution
| Innate immunity | Acquired immunity | |
| 1. | It is present from birth. | It develops during life time. |
| 2. | This immunity remains throughout life. | The acquired immunity can be short lived or life long. |
| 3. | Contact with a pathogen or its antigen is not essential for developing innate immunity. | Contact with a pathogen or its antigen is essential for developing acquired immunity. |
| 4. | Innate immunity is inheritable. | Acquired immunity cannot be passed to the next generation except for a brief period to neonates. |
| 5. | Examples: Innate immunity in humans against distemper, a fatal disease of dogs, acid in the stomach and mucus coating of epithelium preventing microbial growth, interferons protecting non-infected cells from further viral infections, etc. | Examples: IgG antibodies transferred from mother to foetus through placenta, development of natural immunity in a person who has recovered from an attack of mumps, resistance induced by vaccination, etc. |
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Chapter 8: Immunology - Evaluation [Page 145]
