Cold War tensions and the polio vaccine Sabin vaccine from the Soviet side. However other Soviet virologists argued that the Salk vaccine could be considered safe, since the Americans tested it on their own people. They considered that the Sabin vaccine must be potentially dangerous because the Americans did not wish to test it on their own society. The documented achievement of the Sabin-Chumakov collaboration eventually trumped the ideological differences of the Cold War. Their oral live-virus vaccine became federally licensed in 1962, and used for over three decades to help eliminate polio globally, replacing the Salk vaccine. Using these vaccines, the threat of polio remains only
How the Riddler Got His Name (Paul Pilcz) and his men until Selina arrives. She claims she didn't send him the note and leaves. Sonny and his men start beating him but Bruce finally regains strength and beats them. Before returning to Wayne Manor, he is found by Five, who drugs him and claims that he is made to be him. Five then arrives at Wayne Manor and begins posing as Bruce. Bullock leaves to attend a police academy graduation. Nygma is again confronted by Cobblepot, who just wants him to admit he's lost without him. Nygma refuses and then, in an hallucination, Cobblepot (using the