Imagine that you are pro-vaccine (regardless of your true stance) and that you are trying to convince your grandmother (who is 78) that she should get the influenza vaccine each year as recommended by her doctor.  Explain the following concepts to your mom:

a. (5pts) She doesn’t want the vaccine because she says that the shot always makes her feel sick. Briefly explain to grandma, why this happens (using appropriate scientific terminology).
b. (5pts) Next, she argues, “I had the flu shot last year, why do I need it again this year?” Explain, in as much detail as you can, why she must get the flu shot each year. Be sure to explain things like “antigenic drift”, “antigenic shift” and evolution as they apply to influenza.

Sample Solution