dep
It isn't. In fact, because I work in a skilled nursing facility, they keep hounding me every year to get the flu shot. Every year I refuse. The employees who get the shot almost all end up sick with something, but (knock on wood) so far I've escaped.
I'm a great believer in Vitamin C and immune system enhancement. Also they say if you drink two or three beers a day, you won't catch a cold. :^)
Carolyn