AWhich Antigens Are Most Important in the Immune Response to the Influenza

question 51

Essay

A.Which antigens are most important in the immune response to the influenza virus?
B.Explain the difference between antigenic drift and antigenic shift in the influenza virus.
C.Which is most likely to lead to a major worldwide pandemic?
D.What is the role of the phenomenon of 'original antigenic sin' in immunity to this virus?

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