In an apparent one-in-a-million case, Desiree Jennings, 26, says she now suffers from a rare neurological disorder called dystonia because of a flu shot she got ten days before falling ill. She can't walk, but can run; she can still walk backwards.
Also, she can no longer speak properly unless she is running. Jennings met with dozens of doctors before her diagnosis, which has no known cure. It's typically brought on from poisoning, drug use, or head trauma.
According to the FDA, the influenza vaccine which Jennings received came from a batch which has been found to have nothing wrong with it. Jennings is an avid runner and was in training for a marathon in August when she got the flu shot.