The authorization is for individuals 50 and older, which health officials said would provide extra protection for the most vulnerable population if infections spike again. By Stacy M. Brown NNPA Newswire Senior National Correspondent @StacyBrownMedia The Food and Drug Administration has granted permission for a second COVID-19 booster shot – a fourth for those already receiving the additional dose. The authorization is for individuals 50 and older, which health officials said would provide extra protection for the most vulnerable population if infections spike again. The FDA previously approved fourth doses for those 12 and older with severely compromised immune systems.