Is it possible to get the flu from the flu vaccine?

NO: No, the flu shot is a dead vaccination and not able to pass infection. There is no live virus there to cause infection and therefore zero percent chance of this occuring. The nasal flu vaccine, on the other hand, is a live virus vaccine. However, it is engineered to die at body temperature and therefore not able to cause significant illness. It may cause runny nose and congestion but not full.

Absolutely NOT: But it is possible for one's immune system to react with overall symptoms including fatigue, achiness, and fever. These symptoms are still safer than risking a severe case of influenza and its bad complications including death.

Yes: If you have had one strain of the flu you may still benefit from receiving the vaccine to build up resistance to the other strains.If you had the flu last year, this years strains ale likely different and the newer flu shot will provide some benefit.Even if you had a strain that is in the vaccine, getting the shot won't hurt you.