![EXPLAINER: Who's eligible for Pfizer booster shots in US?](https://i.comentr.com/AeYloOKzdO11w_59t3PMJ_Z2frY_tam.jpg)
EXPLAINER: Who's eligible for Pfizer booster shots in US?
https://apnews.com/9d5b5e9774f7dc6016e84696cf13cf34
Millions of Americans are now eligible to receive a Pfizer booster shot to help increase their protection against the worst effects of the coronavirus.
A look at the nuts and bolts of this new phase of the vaccination campaign: