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प्रश्न
It is generally observed that the children who had suffered from chickenpox in their childhood may not contract the same disease in their adulthood. Explain, giving reasons, the basics of such immunity in an individual. Name this kind of immunity.
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उत्तर
People who have suffered from chickenpox in their childhood may not contract the disease again because of acquired immunity, which is characterised by memory.
Acquired immunity is pathogen-specific. At the first encounter with the microbe, the body produces a low-intensity primary response. On subsequent encounters with the same pathogen, a secondary response occurs, which is of high intensity. This is attributed to the fact that our body has memory of the pathogen from the first encounter, which had resulted in the production of antibodies against the pathogen.
संबंधित प्रश्न
A heavily bleeding and bruised road accident victim was brought to a nursing home. The doctor immediately gave him an injection to protect him against a deadly disease.
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- How do you think this injection would protect the patient against the disease?
- Name the disease against which this injection was given and the kind of immunity it provides.
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Suggest a method to ensure an anamnestic response in humans.
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The principle of vaccination is based on the property of the "memory" of the immune system. Taking one suitable example, justify the statement.
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