nytimes October 5, 2021 12:01am Study: Pfizer Vaccine Protects Against Hospitalization for Six Months #coronavirusdeltavariant #vaccinationandimmunization #research #drugspharmaceuticals #pfizerinc #science #news Pfizer vaccine provides 90 percent protection against hospitalization for six months, study finds. The findings, which also document a waning of protection against infection, come as officials debate the necessity and timing of booster shots.
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