Not good my friend:
They were not sure of the chemicals' origin.
Patients possibly exposed to brain disease
More than 500 patients have remote chance of exposure
Friday, October 1, 2004 Posted: 1237 GMT (2037 HKT)
ATLANTA (AP) -- More than 500 patients at Emory University Hospital have a remote chance of exposure to a fatal disease similar to mad cow after a brain surgery patient tested positive for the condition, officials said.
http://edition.cnn.com/2004/HEALTH/conditions/10/01/brain.disease.emory.ap/index.html