Polio vaccine attenuated vaccine strains. In 1958, the National Institutes of Health created a special committee on live polio vaccines. The various vaccines were carefully evaluated for their ability to induce immunity to polio, while retaining a low incidence of neuropathogenicity in monkeys. Large-scale clinical trials performed in the Soviet Union in late 1950s to early 1960s by Mikhail Chumakov and his colleagues demonstrated safety and high efficacy of the vaccine. Based on these results, the Sabin strains were chosen for worldwide distribution. Fifty-seven nucleotide substitutions distinguish the attenuated Sabin 1 strain from its virulent parent (the Mahoney serotype), two nucleotide substitutions
Requiem for What's His Name Requiem for What's His Name Requiem for What's His Name is the second album by Marc Ribot & The Rootless Comopolitans. It was released on the Belgian label Les Disques du Crepuscule in 1992. It was recorded in New York City, except "Commit a Crime" which was recorded live at Desi Stadtteilzentrum in Nuremberg, Germany. The Allmusic review by Brian Beatty awarded the album 4 stars, stating, "On his second release as a bandleader, guitarist Marc Ribot is joined by players familiar from his gigs as a hired sideman, including saxophonist Roy Nathanson of the Lounge Lizards and the Jazz