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vaccine
(redirected from Salk vaccine)

   Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.01 sec.

vaccine

Any preparation of modified pathogens (viruses or bacteria) that is introduced into the body, usually either orally or by a hypodermic syringe, to induce the specific antibody reaction that produces immunity against a particular disease.

In 1796 Edward Jenner was the first to inoculate a child successfully with cowpox virus to produce immunity to smallpox. His method, the application of an infective agent to an abraded skin surface, is still used in smallpox inoculation.



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The Salk vaccine trials were the dramatic culmination of years of research and a multimillion-dollar investment, made up in large part by public donations.
As for the Salk vaccine for poliomyelitis, developed in the 1950s, medical research has thankfully moved on since then with the test tube gradually replacing the laboratory mouse.
Along with Albert Sabin's later oral live-virus version, the Salk vaccine made it possible to conquer this dreaded disease in every country of the Americas (see sidebar p.
 
 
 
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