1953 में dr. jones e. salk ने पोलियो vaxin के सफल ट्रायल की घोषणा की थी! उन्होंने प्रायोगिक तौर पर 30 बच्चो और वयस्कों पर परिक्षण किया था उस समय अमेरिका में हर बच्चे को वैक्सीन देना अनिवार्य कर दिया था ! 24 oct. को salk का birthday होता है !इसलिए rotary international ने उन्हें सम्मान देने के उस दिन को world polio day मानाने का फैसला किया !
In 1953, dr. jones e. announced the successful trial of salk polio vaxin He was experimental tested on 30 children and adults in the United States at that time was that every child must be vaccinated ! 24 Oct. To have the birthday of salk! So rotary international day to honor them decided to commemorate the world polio day!
In 1953, dr. jones e. announced the successful trial of salk polio vaxin He was experimental tested on 30 children and adults in the United States at that time was that every child must be vaccinated ! 24 Oct. To have the birthday of salk! So rotary international day to honor them decided to commemorate the world polio day!
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