The start of the 20th century saw the emergence of major polio epidemics. Dr Jonas Salk, a virologist, developed a promising vaccine candidate in 1953 and launched a large trial among 1.83 million kids in the US. The trial was conducted by the National Foundation for Infantile Paralysis, which was founded by the polio-diagnosed US President Franklin D Roosevelt and funded mostly by millions of small-sum donations from the American public.
This story is from the August 10, 2021 edition of The New Indian Express Chennai.
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This story is from the August 10, 2021 edition of The New Indian Express Chennai.
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