Предварительные результаты III фазы испытаний "Спутника": статья в "The Lancet" (link, open ac.) и её пересказ на CNN (in Engl.). Выглядит вполне пристойно.
"Our interim results of the phase 3 Gam-COVID-Vac trial show that the vaccine is 91·6% (95% CI 85·6–95·2) efficacious against COVID-19 (from day 21 after first dose, the day of receiving second dose). Our results also showed that the vaccine was 100% (95% CI 94·4–100) efficacious against severe COVID-19, although this was a secondary outcome so the results are preliminary."