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Dose

FDA permits third dose for the immune-deficient

The Food and Drug Administration approved Covid-19 vaccine booster shots for people with compromised immune systems, a highly anticipated move designed to protect some of the most at-risk Americans from the highly contagious Delta…

Single dose of vaccine can almost halve transmission

A nurse, Cindy Mendez, wearing a protective mask, holds a syringe containing a dose of Pfizer-BioNTech COVID-19 vaccine during the coronavirus disease (COVID-19) pandemic at NYC Health + Hospitals Harlem Hospital in the Manhattan…

Single dose cuts infection rate by 65%, study finds

James Shaw, 82, receives Oxford University / AstraZeneca COVID-19 vaccine from advanced nurse Justine Williams on January 4, 2021 at Lochee Health Center in Dundee, Scotland, UK.Andy Buchanan | ReutersLONDON - A single dose of the Covid-19…