I haven't had a flu shot since the mid 80's.
You usually get it from touching your mouth, nose, eyes, or ears. These are the pathways for the flu.
When you feel a cold, or the flu coming on,a few drops of Colloidal Silver will take care of it. Do this several times to make sure.
Also gargle with CS if you feel like your getting a sore throat.
Schools sometimes become the petri dish for the flu, and other problems.
I supplied my grand daughter with CS while she was in college for 4 years. Never had a problem.