The 3 vaccines used in the U.S. produced by Pfizer, Moderna and Johnson & Johnson remain preventing hospitalizations and deaths from COVID-19. Although the vaccines don't surface quite as strong versus the really contagious delta variant as they were from earlier versions of your virus. Earlier this month, U.S. regulators http://www.pnjh.phc.edu.tw/imglink/hits.php?id=32&url=https://getlisting.org/