IMMUNE RESPONSE
CLASSICAL ALTERNATE AND LECTIN PATHWAYS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A secondary immune response occurs when an antigen isencountered on a second occasion, due to exposure to a pathogen that previously caused infection. Which property of some viruses explains the lack of a secondary immune response?
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Viruses fail to induce a primary response.
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Viruses can have a high mutation rate.
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B cells do not interact with viruses.
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Antibodies cannot interact with viruses.
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Explanation:
Detailed explanation-1: -During the secondary immune response, the immune system can eliminate the antigen, which has been encountered by the individual during the primary invasion, more rapidly and efficiently. Both T and B memory cells contribute to the secondary response.
Detailed explanation-2: -A secondary immune response occurs as a result of a second exposure to an antigen. It is a much more rapid and sustained response due to the action of memory immune cells.
Detailed explanation-3: -In a secondary response to the same antigen, memory cells are rapidly activated. This process is quicker and more effective than the primary response.
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