2021 could end without getting everyone vaccinated 26:23
(CNN) -
After criticism last year for an early launch, Russia's Sputnik V coronavirus vaccine is 91.6% effective in preventing symptomatic covid-19 and 100% effective in preventing serious illness, according to an interim analysis of data from the phase 3 trial published in the medical journal The Lancet on Tuesday.
The randomized, double-blind, placebo-controlled clinical trial includes data on 19,866 participants (14,964 received the vaccine and 4,902 received the placebo).
There were 78 cases of Covid-19 among the trial participants and only 16 of them had received the vaccine.
The rest received a placebo, which does nothing.
The trial included 2,144 people over the age of 60, and a sub-analysis conducted in this group revealed that the vaccine was well tolerated and had a similar efficacy of 91.8%.
The analysis includes only symptomatic COVID-19 cases, and the authors note that more research is needed to understand the efficacy of the asymptomatic COVID-19 vaccine, transmission, and how long protection can last.
advertising
sputnik V
