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Question
Which antibody is first to be released into blood following an infection?
Which antibody is first to be released into blood following an infection?
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Solution
The correct option is D IgM
- IgM antibodies appear early in the course of an infection and reappear to a lesser extent, after secondary infection. It provides the first line of defense during infection.
- Thus, IgM in the body indicates recent infection. IgG is produced in a secondary infection.During this time, IgM levels are very low.
- IgA is present in the external secretions like saliva, milk.
- IgE is present during the allergic reaction.
Thus, the correct answer is option C.
- IgM antibodies appear early in the course of an infection and reappear to a lesser extent, after secondary infection. It provides the first line of defense during infection.
- Thus, IgM in the body indicates recent infection. IgG is produced in a secondary infection.During this time, IgM levels are very low.
- IgA is present in the external secretions like saliva, milk.
- IgE is present during the allergic reaction.
Thus, the correct answer is option C.
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