Polio vaccine shows promise against COVID-19 in african trial

NCT ID NCT04445428

First seen Apr 14, 2026 · Last updated Jun 13, 2026 · Updated 11 times

Summary

This study tested whether the oral polio vaccine (OPV) could reduce illness and death from COVID-19 and other infections in adults over 50 in Guinea-Bissau. Researchers gave OPV to some households and no vaccine to others, then tracked health outcomes for 6 months. The goal was to see if OPV, which boosts the immune system broadly, could offer protection against the coronavirus.

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Contacts and locations

Locations

  • Bandim Health Project

    Bissau, Guinea-Bissau

Conditions

Explore the condition pages connected to this study.