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Erythropoetin

Which of the ...

Question

Which of the following cell first move to the site in type Iv hypersensitivity reaction?

A

T helper

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B

T killer cell

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C

Monocytes

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D

Erythrocytes

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Solution

The correct option is A T helper
In type IV hypersensitivity reactions, firstly CD4+ helper T cells recognize antigen in a complex with Class 2 major histocompatibility complex on macrophages.
So, the correct answer is option A.

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