MISCELLENOUS
VACCINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The first immunoglobulin class produced in a primary response to an antigen is:
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IgA
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IgG
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IgM
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IgE
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Explanation:
Detailed explanation-1: -IgM is the first antibody secreted by the adaptive immune system in response to a foreign antigen. Monomeric IgM is a heterotetramer of approximately 180 kDa. However, the secreted form of IgM exists predominantly in a pentameric configuration with a molecular weight greater than 900 kDa.
Detailed explanation-2: -IgM antibodies constitute the major component of the natural antibodies and is also the first class of antibodies produced during a primary antibody response.
Detailed explanation-3: -IgM. IgM antibodies are the first antibodies produced during an immune response.
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