COVID-19 — Brazil
The Pfizer-BioNTech coronavirus vaccine is extremely effective in young adolescents, perhaps even more so than in adults, the companies reported on Wednesday — a finding that could ease the return to normalcy for millions of American families.
No symptomatic infections were found among children aged 12 to 15 who received the vaccine in a recent clinical trial, the drug makers said; the children produced strong antibody responses and experienced no serious side effects.
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