FDA backs Pfizer COVID-19 boosters for seniors, high-risk

The U.S. moved a step closer Wednesday to offering booster doses of Pfizer's COVID-19 vaccine to senior citizens and others at high risk from the virus as the Food and Drug Administration signed off on the targeted use of extra shots.

source https://medicalxpress.com/news/2021-09-fda-pfizer-covid-boosters-seniors.html