Hi Tina

We've got the 3F4 monoclonal antibody (against prions) from the place where
it was developed (I guess):

Laboratory of Immunological Neurovirology
Institute for Basic Research in Developmental Disabilities
1050 Forest Hill Road
Staten Island, New York 10314-6399
Phone (718) 494 0600
Fax (718) 698 3803

We've bought ascites fluid in spring 1998. It is possible that the antibody
has been commercialized in the mean time, but in this case you should be
able to get the necessary information at the above address.
Good luck!

Andi Kappeler
Institute of Pathology, University of Bern, Switzerland