During an epidemic, an immunisation programme is organised to provide immediate protectionto the vulnerable people. The type of immunity provided to these people would be
Correct answer: B. Active and artificial
- A. Active and natural
- B. Active and artificial
- C. Passive and natural
- D. Passive and artificial
Explanation
Active artificial immunity is acquired through vaccination but does not provide immediate protection as it requires time for the body to develop an immune response. So it's correct option. This immunization protects people in an epidemic not the other types of immunities given.
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About Specific Defense Mechanism
Specific defense mechanisms provide targeted immunity through B lymphocytes, T lymphocytes, antibodies and memory cells that recognize particular antigens. Questions cover humoral and cell mediated responses, clonal selection, primary and secondary immune responses, vaccination and passive immunity, while distinguishing adaptive defenses from the immediate, non specific innate response.
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