Pfizer has expanded its COVID-19 vaccine trial to include teens. Some say it's risky. Others argue it's necessary.

After months of testing its COVID-19 candidate vaccine in adults, Pfizer recently lowered the age of participation to 16.

      


from USATODAY - News Top Stories https://ift.tt/2HqlGFh
https://ift.tt/3ohC7nQ

Comments