The coronavirus vaccine developed by
The study examined the vaccine's effectiveness in 600,000 pairs of vaccinated and unvaccinated people, comparing all illnesses, hospitalizations and deaths. The study was performed in
According to the results, the vaccine was found to be effective in about 94% of all people who were inoculated. Clinical trials of the vaccine reported its effectiveness at almost the exact same figure.
"Estimated vaccine effectiveness during the follow-up period starting seven days after the second dose was 92% for documented infection, 94% for symptomatic COVID-19, 87% for hospitalization, and 92% for severe COVID-19," the study, published Wednesday in the
Senior author
"The vaccine fulfilled the promise that was there," Balicer said. "And it was somewhat of a surprise to see that in a real-world setting, a vaccine was able to perform as well as it did in the very controlled setting of a clinical trial, where cold-chain is perfect and the people are being carefully selected."
Balicer warned that there's potential for a false sense of security. Although the drug proved highly effective among the thousands examined, he said, there were still people who were fully vaccinated and still developed severe COVID-19.
"These vaccines are not a force field around you that negates the chance that you will have an illness or that you will have a severe illness," he said. "There is a residual risk.
"And so I think continuing precautions, especially among those populations at risk at a time when community spread is evident and is massive ... would be the prudent thing to do, even for those who are fully vaccinated."
The vaccine by
Other vaccines from
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