Prognosis

Russian Covid Vaccine’s Effectiveness Confirmed by Expert Review

  • Sputnik V interim Phase 3 results show 91.6% efficacy
  • Vaccine may work well against new strains, developer claims

Sputnik V showed efficacy of 91.6%, validating claims by the developers last year.

Photographer: Andrey Rudakov/Bloomberg
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Russia’s Sputnik V vaccine provided strong protection against Covid-19 in an interim analysis of an advanced clinical trial, while its backers said it appears to work against new strains of the virus.

The vaccine was well-tolerated and worked in the elderly as well, according to the peer-reviewed findings, which were published Tuesday in the medical journal The Lancet. Sputnik V showed efficacy of 91.6%, validating claims by the developers last year.