passage of 5 litres of raw sewage ( containing 50 to 1.26 x 10 ( 5 ) pfu/100 ml of the poliovirus ) through the talc ( 15 g ) -celite ( 5 g ) layers and virus elution with 50 ml of 10 % fcs in saline gave virus recoveries of 33-63 % ( mean 49 % ) .
C0206435
poliovirus
C0042776
virus