The Pfizer / Biontech vaccine against Covid-19 is very effective in adolescents, according to a new Israeli-American study.
Researchers from the Clalit Research Institute and Harvard University who published the study in the New England Journal of Medicine analyzed data on 94,354 vaccinated adolescents aged 12 to 18 years between June and September 2021.
The researchers also compared an equal number of unvaccinated teens.
It was found that in fully vaccinated adolescents, 7 to 21 days after the second dose the risk of the disease was reduced by 93% compared to their unvaccinated peers.
But 14 to 20 days after the application of the first dose, the risk of Covid was 57% lower in vaccinated persons, while the risk of infection was 59% lower in unvaccinated adolescents, write foreign media.
“The results of the study show that a week after the second dose this vaccine is more effective in adolescents against Covid,” said Professor Ran Balitzer, adding that these data are a strong argument in favor of vaccinating adolescents to prevent further further spread of Covid.
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