Where was the first successful polio vaccine field trial carried out?
Quick Answer
The first large-scale successful field trial of the Salk polio vaccine was carried out in the United States in 1954, across multiple states and communities.
The Full Story
The landmark 1954 field trial of Jonas Salk’s inactivated polio vaccine was conducted in the United States, involving hundreds of thousands of children in several states. It is one of the largest medical field trials ever carried out. The results were announced in April 1955, showing the vaccine was effective against paralytic polio. This trial helped pave the way for mass immunization campaigns that dramatically reduced polio cases worldwide.
Key Facts
YouTube Angle
Suggested video title for this topic:
"The vaccine trial that helped defeat polio began in America."
Was this answer helpful?
Tap a reaction — it helps us pick what to cover next.