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feb 21, 2021 - February 21: Large-scale Israeli study finds that the Pfizer vaccine is 98.8% effective at preventing deaths and hospitalizations after 2 doses.
Added to timeline:
16 Sep 2021
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COVID 2021 - Policy, vaccines, therapies, and testing
Date:
feb 21, 2021
Now
~ 3 years and 2 months ago