Largest study on Pfizer Covid vaccine says drug offers over 95% protection

BioNTech-Pfizer say their Covid-19 vaccine has 100% efficacy in 12-15 year olds

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pfizer vaccine-efficacy

Largest study on Pfizer Covid vaccine says drug offers over 95% protection

BioNTech-Pfizer say their Covid-19 vaccine has 100% efficacy in 12-15 year olds