... rapidly declined.Indeed, in the United States, the last case of poliomyelitisdue to infection with wild type (wt) virus was reported in 1979. Less than a decade later, in 1988, the World HealthOrganization ... poliovaccine was both safe and effective. Then, in 1963, the development of a second vaccine, the Sabin polio vaccine,was announced. With the introduction of effective vac-cines, the incidence of ... Characterization of cDNAs encoding the polypyrimidine tract-binding pro-tein. Genes Dev 1991, 5:1224-1236.67. Giraud S, Greco A, Brink M, Diaz JJ, Delafontaine P: Translation ini-tiation of the insulin-like...