See:
http://www.pdonlineresearch.org/news...nson-s-disease
"UCLA researchers funded by The Michael J. Fox Foundation report in the January 31 online edition of PloS ONE the surprising conclusion that a vaccine routinely used to prevent childhood tuberculosis (TB) might prove beneficial for maintaining the health of dopaminergic cells in Parkinson’s disease."
A possible link between PD and TB is explored in:
http://drbroxmeyer.netfirms.com/parkinsons.pdf
John