Phase 1 trial shows promise for completion of stalled eradication effort; offers lessons for COVID-19 vaccine development. Virologists report promising Phase 1 clinical results for the first new oral polio vaccine in 50 years, which they have designed to be incapable of evolving the ability to cause disease in humans.
Before being halted due to the COVID-19 pandemic, a relentless vaccination campaign had nearly succeeded in eradicating polio from the world...
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