A 75-Year-Old Patient Tells You He Is Not Planning to Receive

A 75-year-old patient tells you he is not planning to receive a "flu shot" this year because he had one just a year ago.What is your best response?

A) "Because you are older and your immune system is more fragile,you should have one this year too as a booster."
B) "The virus causing influenza often changes each year and a new influenza vaccination is needed every flu season."
C) "The "flu shot" you had last year should still protect you for seasonal influenza,but you still need a vaccination for H1N1."
D) "The fact that you have been vaccinated by injection just last year makes you a candidate to use the nasal vaccination this year."