Second Pfizer Jab Taken After Shorter Interval Has Higher Myocarditis, Pericarditis Risk, Doctor Says
An 11-year-old Hong Kong girl vaccinated with the Pfizer-BioNTech vaccine had symptoms of myocarditis. Since then, the Hong Kong Centre for Health Protection extended the interval between the first and second doses of the Pfizer-BioNTech vaccine from three to eight weeks for
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