an oral vaccine (containing live but weakened poliovirus) that is given to provide immunity to poliomyelitis
[ Syn: sabin vaccine , oral poliovirus vaccine , opv , trivalent live oral poliomyelitis vaccine , topv ]
an oral vaccine (containing live but weakened poliovirus) that is given to provide immunity to poliomyelitis
[ Syn: sabin vaccine , oral poliovirus vaccine , opv , trivalent live oral poliomyelitis vaccine , topv ]