This video is from that wonderful bastion of journalism, Inside Edition.
What do I think, given the research I've done on the issue? Desiree was faking it. She wanted attention and found a way to get it and perhaps, just perhaps could get a little cash out of it. It's entirely possible that she was unintentionally faking it. The presence of a new accent is also suspicious, given that she didn't have it after her keylation therapy in late October.
I am very skeptical, especially with the explanation of a new accent. Sorry, Foreign Accent Syndrome actually seems to involve brain damage. My theory, and it's an educated guess is that Desiree just might be a hypochondriac, and reads a brief bit about a rare disease and then mimics its symptoms.
This also brings up the subject of journalism. Inside Edition shouldn't be the one thwarting these claims that the vaccine caused this woman's illness. When she's latched on to by people trying to discredit flu vaccines and is used by quack doctors to promote ineffective and expensive pseudo-medical procedures, that should be the area of major news investigation. Sadly, what we have now is a news system that doesn't investigate like it used to, so we're left with Inside Edition to do this crap, and they, quite frankly, do it badly. This should have been on 20/20 or Frontline, but I guess looking into the alt-med industry is likely to make too many viewers mad.
All that said, get vaccinated. Stop going to quacks.