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Aleks [24]
3 years ago
8

Sam is exposed to a cold virus on Sunday. By Tuesday he has a cough and a congested nose. On Saturday he starts to feel a little

better, and antibodies against the cold virus begin to be detectable. What kind of response is this?
Health
1 answer:
andriy [413]3 years ago
8 0

Answer:

The correct answer is the primary response.

Explanation:

Immune response to an antigen can be categorized as a primary response or the secondary response, Primary response takes place as a result of first time exposure to the antigen. Naïve B-cell and T-cell are the cells of the primary response action. The lag phase is generally four to seven days however in some cases it can be weeks or months.

The primary response is slower in comparison or the secondary response. IgM is main and produced first in the primary response. Lymph nodes and spleen are sites for the primary response.

Thus, the correct answer is the primary response.

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