Scientists at the FDA said Pfizer’s Covid-19 vaccine seems to last long enough that a booster shot may not add much protection
Scientists at the Food and Drug Administration said Wednesday Pfizer’s Covid-19 vaccine seems to last long enough that a booster shot may not add much protection, according to documents the agency released Wednesday, previewing skepticism the company may face when an advisory committee meets Friday to discuss whether a third dose should be approved....
FDA scientists wrote in their own briefing document that while studies have differed on whether the Pfizer vaccine eventually loses some power to protect against Covid-19 infections, most data show that the original shots
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