The polio virus attacks certain kinds of nerve cells and for hundreds of years it killed and crippled, especially children.
By 1952, Dr. Jonas Salk and his research team as the University of Pittsburg had developed to kill virus vaccine against polio.
The effort to eradicate the disease started small with Dr. Salk and his team immunizing a few thousand students in the Pittsburg area.
But soon it became a nationwide mobilization to protect every child against the polio threat.
Salk’s vaccine and the alive polio vaccine developed later by Albert Sabin where effective and controlling the viral disease.
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