The Pfizer-BioNTech COVID-19 vaccine may sometimes cause no side effects

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The Pfizer-BioNTech COVID-19 vaccine may sometimes cause no side effects
On March 11, 2020, the World Health Organization (WHO) officially
COVID-19 vaccines work by introducing the immune system to an
Subunit vaccines use a small part of a pathogen to
The recent authorization of two highly effective COVID-19 vaccines for
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Scientists have shown that currents measured in millionths of an
A new study provides the best available evidence for key