Antigen
Which of the following is incorrect with regard to antigen epitopes?

B cells bind only processed antigen epitopes
Epitopes may be linear or assembled
An epitope may be shared by two different antigens
A protein molecule usually contains multiple epitopes

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Antigen
During the lag period between antigen contact and detection of adaptive immunity,

antigen is hidden from the immune system in macrophages
innate immunity blocks the activation of adaptive immune effector cells
new B and T cells with the appropriate antigen specificity must be produced in the bone marrow
innate immune effectors are eliminating antigen

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