The Flu shot
An article on Sympatico MSN, 14/11/06 shows a study that tracked adults who took the Vaccine in October and November between April 1992 and March 04 a total of 1601 patiants admitted to Ontario hospitals were diagnosed with GBS, 269 were atributed to the flu shot.
The entire article can be found at web site, Archives of Intrnal Medicine,
Volume 166 # 20, November 13, 2006.
Hope this will help with your concern.
Oakville on, Canada