National Geographic: Pfizer vaccine results are promising, but lack of data ‘very concerning,’ experts say

National Geographic: Pfizer vaccine results are promising, but lack of data ‘very concerning,’ experts say. “Several experts say they’re concerned that the public is getting an incomplete picture about the vaccine’s success that doesn’t reveal critical information, such as which demographic groups it protected and whether it was from a mild or severe form of the virus. There’s also the real possibility that the 90-percent figure could change as the trial ticks on and investigators collect more results. Plus, the unpublished results have not been peer-reviewed or even released as a preliminary preprint.”

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