Albert Sabin a vaccine to prevent or mitigate the illness. The Sabin vaccine is an oral vaccine containing weakened forms of strains of polio viruses. In 1955, Salk's "killed" vaccine was released for use. It was effective in preventing most of the complications of polio, but did not prevent the initial intestinal infection. The Sabin vaccine is easier to give than the earlier vaccine developed by Salk in 1954, and its effects last longer. Sabin first tested his live attenuated oral vaccine at the Chillicothe Ohio Reformatory in late 1954. From 1956–1960, he worked with Russian colleagues to perfect the oral vaccine
How the Riddler Got His Name Amanda Bell of "EW" gave the episode a "B+" and wrote, "The content of Nygma's riddles was paralleled not just by his own experience coming into his big badness, but also in the episode's other two story lines. 514A is, obviously, a literal reflection of Bruce Wayne, and the loneliness referred to in the first riddle applies to both Nygma and Gordon. Gordon's quest for truth and family, compounded by his current isolation, makes him vulnerable to Frank’s ploy right now — if that's what it actually is. For a segment devoted to such a cunning wordsmith, this episode quite