Immunogen: Picornavirus, Enterovirus, Poliovirus Type 1, Strain Brunhilde in RhMk (lumbar and cervical segments of spinal cord) Source of antibody: Rhesus monkey Propagated in: lumbar and cervical segments of spinal cord of rhesus monkey Adjuvant: 1 part Arlacel A plus 9 parts Bayol F with equal amounts of a 20% suspension of virus |