A different COVID-19 vaccine debate: Do we need new ones?
FILE - In this photo provided by Pfizer, a technician inspects filled vials of the Pfizer-BioNTech COVID-19 vaccine at the company's facility in Puurs, Belgium in March 2021. COVID…
FILE - In this photo provided by Pfizer, a technician inspects filled vials of the Pfizer-BioNTech COVID-19 vaccine at the company's facility in Puurs, Belgium in March 2021. COVID…