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
His Name Is Legs (Ladies and Gentlemen) before undertaking a much-anticipated North American tour with Ravi Shankar. With Peter Sellers among his entourage, Harrison alternatively adopted comedy and his Hindu-aligned spiritual goals as a defence against expectations related to his Beatle past during the tour.<ref name="Fong-Torres/2001">Ben Fong-Torres, "George Harrison: Harrison in the Haight", "San Francisco Chronicle", 2 December 2001; available at Rock's Backpages (subscription required).</ref> When discussing "His Name Is Legs" with BBC Radio 1 DJ Paul Gambaccini in September 1975, Harrison said that after recording the basic track, he invited Smith to sing the first two lines of each of the bridges. Smith did these vocal