Q182. Jonas Salk invented the vaccine for (a)Polio (b) Hepatitis (c) Typhoid (d) Cholera

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Dileep Vishwakarma

2 years ago

On March 26, 1953, American medical researcher Dr. Jonas Salk announces on a national radio show that he has successfully tested a vaccine against poliomyelitis, the virus that causes the crippling disease of polio.

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