The reason for the need of taking the flu shot year after year instead of only once early in life. Introduction: Flu is caused by the influenza virus. The influenza virus is an RNA virus that has RNA as its genetic material. The RNA being an unstable biomolecule undergoes consistent mutation. This causes an antigenic drift that changes the shape of its antigen. If the two viruses of different antigen type combine, they cause an antigenic shift that alters the antigens of the daughter cells produce.

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Chapter 24, Problem 11TYK

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To determine: The reason for the need of taking the flu shot year after year instead of only once early in life.

Introduction:

Flu is caused by the influenza virus. The influenza virus is an RNA virus that has RNA as its genetic material. The RNA being an unstable biomolecule undergoes consistent mutation. This causes an antigenic drift that changes the shape of its antigen. If the two viruses of different antigen type combine, they cause an antigenic shift that alters the antigens of the daughter cells produce.

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