Bloomberg: Pfizer-BioNTech Shot Stops Covid's Spread, Israeli Study Shows.
https://www.bloomberg.com/news/articles/2021-02-21/pfizer-biontech-shot-stops-covid-s-spread-israeli-study-shows
https://www.bloomberg.com/news/articles/2021-02-21/pfizer-biontech-shot-stops-covid-s-spread-israeli-study-shows
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