Dr. Jonas Salk

Dr. Jonas Salk was an American scientist and medical researcher best known for developing the first effective polio vaccine in the 1950s. His work aimed to prevent poliomyelitis, a disease that caused paralysis and death worldwide. Salk’s vaccine uses inactivated (killed) virus particles to stimulate the immune system without causing illness. His breakthrough significantly reduced polio cases and led to widespread immunization efforts. Salk’s approach emphasized public health and scientific innovation, and he chose not to patent the vaccine, believing the health of millions was more important than profit. He is remembered as a pioneer in vaccine development and disease prevention.