the virus spread was evaluated ( i ) just before vaccination in 337 infants or children from june to december 76 : 8 % carried poliovirus sabin-like strains ( and 18 % non polioviruses ) , and ( ii ) one month after vaccination in 75 infants : 37 % carried poliovirus sabin-like strains .
C0042776
virus
C0206435
poliovirus