Pfizer-BioNTech said low doses of COVID-19 vaccine are safe and effective for children aged 5 to 11, USA Today reported. Pfizer-BioNTech's COVID-19 vaccine is safe and effective for children aged 5 ...
Pfizer-BioNTech said low doses of COVID-19 vaccine are safe and effective for children aged 5 to 11, USA Today reported. Pfizer-BioNTech's COVID-19 vaccine is safe and effective for children aged 5 ...