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Jonas Salk

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Two polio vaccines are used throughout the world to combat polio. The first was invented by Jonas Salk, and first tested in 1952 and announced to the world by Salk on March 26, 1953. It consists of an injected dose of killed polio virus. Albert Sabin produced an oral polio vaccine using live but weakened virus in 1962.

The live-virus vaccine has the advantage that it can confer immunity on some people who do not themselves receive the vaccine, if they are closely exposed to a vaccinated person. It has the disadvantage that it can itself cause polio. In the United States, the use of live-virus vaccine was discontinued after 2000, but it is still used elsewhere.

Jonas Salk

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Jonas Salk (October 28, 1914 - June 23, 1995) is the discoverer/inventor of the eponymous Salk vaccine (see polio vaccine). This was one of the first successful attempts at immunization against a virus, specifically the Poliomyelitis virus. The vaccine provides the recipient with immunity against Polio, and was seminal in the near eradication of a once widely-feared disease. Salk used a "killed" virus technique which required the patient to be injected with the vaccine. The patient would develop immunity to the live disease due to the body's earlier reaction to the killed virus. By contrast, Albert Sabin developed a "live" vaccine which was released in 1961, and which could be taken orally.

Unlike many modern scientists who are more concerned with the wealth or fame accompanying their innovations, Salk stated "'Who owns my polio vaccine? The people! Could you patent the sun?"

Salk was born in New York City. He spent his career as a professor at the University of Pittsburgh. Later in his career, Salk devoted much of his energy to developing an AIDS vaccine.

The Salk Institute in La Jolla, California was named in Jonas Salk's honor.

 

credits : www.wikipedia.org
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