Article
Pfizer vaccine 90% effective in warding off COVID in adolescents
on this study/publication
https://www.nejm.org/doi/full/10.1056/NEJMc2114290
"The research, which focused on youth between the ages of 12 and 18, was carried out by Clalit Health Services and found that the vaccine was 90% effective against warding off infection and 93% effective against stopping symptomatic infection on days seven to 21 after the second dose - even against the Delta variant.
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The study compared nearly 95,000 adolescents who received the vaccine against the same number who did not, matching their demographic, clinical and other personal characteristics. The research was conducted between June 8 and September 14, when the Delta variant was the most dominant strain in the country.
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On the same same subject
Pfizer/BioNTech COVID-19 vaccine highly protective in 12-18 age group - U.S. CDC study
Study:
Effectiveness of Pfizer-BioNTech mRNA Vaccination Against ...
"The Pfizer Inc (PFE.N)/BioNTech SE COVID-19 vaccine was 93% effective in preventing hospitalizations among those aged 12 to 18, according to an analysis released by the U.S. Centers for Disease Control and Prevention (CDC) on Tuesday.
The study was conducted between June and September, when the extremely contagious Delta variant of the coronavirus was predominant.
Yet, the data from 19 pediatric hospitals showed that among the 179 patients who were hospitalized for COVID-19, 97% were unvaccinated, providing reassurance of the vaccine's efficacy.
Of the roughly 16% of patients hospitalized with severe enough COVID-19 to require life support, none were vaccinated."
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So it would help a lot with breaking transmission chains...