Primary Vs. Secondary Immune Response

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shaq786

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What is the difference between a Primary Vs. Secondary Immune Response?
 
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Primary immune response is what happens when the body is first exposed to a pathogen. So for the first few days there's little visable response from the body, but the foriegn antigen presence triggers the T-helper which then follows the full process down the chain.

Secondary immune response happens on subsequent infections, the body keeps memory B and T cells and has antibodies for the antigen. So the antibodies connect to the antigens preventing (or greatly delaying) the invading pathogen.
 
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