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प्रश्न
Differentiate between Non-specific and specific immunity.
अंतर स्पष्ट करें
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उत्तर
| Aspect | Non-specific Immunity | Specific Immunity |
| Nature | Present at birth; hereditary and passed from one generation to the next | Acquired during host's lifetime |
| Specificity | Non-specific (defense against broad range of pathogens) | Specific to particular pathogens (pathogen-specific) |
| Memory | No immunological memory | Immunological memory present (primary and secondary responses) |
| Components | Physical barriers (skin, mucous membranes), physiological barriers (stomach acid, tears), cellular barriers (phagocytes like neutrophils and macrophages), cytokine barriers (interferons) | Mediated by lymphocytes: B-cells and T-cells producing antibodies and cell-mediated responses |
| Response Speed | Immediate | Slower initial response (primary), faster upon subsequent exposure (secondary) |
| Examples of action | Phagocytosis by neutrophils and macrophages, inflammation, interferon production | Antibody production, cytotoxic T cell activity |
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