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Where was the first polio vaccine field tested on a large scale?
MedicineVaccines
Quick Answer
A major early field test of the polio vaccine took place in the United States in 1954, with the largest public trial centered in multiple American communities. The vaccine was then announced as effective in 1955.
The Full Story
The first large-scale field test of Jonas Salk’s polio vaccine took place in the United States in 1954. It involved about 1.8 million children, making it one of the largest medical trials of its time. The results were announced in April 1955, showing the vaccine was safe and effective. Polio vaccination campaigns then spread around the world, sharply reducing cases. Today, polio remains endemic in only a few countries.
Key Facts
1.1954: U.S. field trial
2.About 1.8 million children participated
3.1955: vaccine announced effective
YouTube Angle
Suggested video title for this topic:
"The giant trial that helped defeat polio"