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Day: April 25, 2011
Jonas Salk Developer of Polio Vaccine
Biography: Jonas Salk Developer of Polio Vaccine Jonas Salk Date of birth: October 28, 1914 Jonas Salk Date of death: June…
The Polio Crusade
In the summer of 1950 fear gripped the residents of Wytheville, Virginia. Movie theaters shut down, baseball games were cancelled…
Polio Virus
Early Polio History Polio (also known as poliomyelitis or infantile paralysis) is an illness caused by poliovirus. At one time, poliovirus…
Apr 25, 1983: Andropov writes to U.S. student
On this day in 1983, the Soviet Union releases a letter that Russian leader Yuri Andropov wrote to Samantha Smith,…
