This is updated Polio,
Polio 120 750 (st 3793 1051-7 2137-1 4650 5975 7243-7 8253-4) Hz
Poliomyelitis 60 120 710 (st 3901 1355-5 2537-9 3165 5231-1 6042-2 6257-9) Hz
Poliodystrophia Cerebri 250 780 930 7500 (st 1089 9590 3225-3 4157 5629-1 7420-6) Hz
and the not so polio,
Poliomyelitis, Nonpoliovirus 120 750 (st 3793 1051-7 2137-1 4650 5975 7243-7 8253-4) Hz
all higher frequencies use sawtooth waveform instead of square wave.
Good luck.