To get a booster or not? The US Food and Drug Administration and US Centers for Disease Control and Prevention have issued guidance that some adults can receive a third shot of the Pfizer/BioNTech Covid-19 vaccine, so it's time to ask that question.
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To get a booster or not? The US Food and Drug Administration and US Centers for Disease Control and Prevention have issued guidance that some adults can receive a third shot of the Pfizer/BioNTech Covid-19 vaccine, so it's time to ask that question.
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