1. Under ordinary conditions of hydrogen ion concentration the virus of poliomyelitis, as such, or associated with particles in fine suspension, migrates in an electrical field to the anode. It follows that the virus bears an electronegative charge.
2. By means of cataphoresis, the virus can be recovered from a non-infective mixture of virus and specific immune serum.
3. By the same means it is possible to reveal the presence of virus in the central nervous system of a monkey which has recovered from the active stage of experimental poliomyelitis.
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Copyright, 1929, by The Rockefeller Institute for Medical Research New York
1929
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