Pfizer's vaccine 91% effective in preventing Covid, updated trial data showssource https://www.indiatoday.in/coronavirus-outbreak/story/pfizer-biontech-coronavirus-covid19-vaccine-effective-variant-south-african-1786282-2021-04-02?utm_source=rss
Thursday, 1 April 2021
Pfizer's vaccine 91% effective in preventing Covid, updated trial data shows
Pfizer's vaccine 91% effective in preventing Covid, updated trial data showssource https://www.indiatoday.in/coronavirus-outbreak/story/pfizer-biontech-coronavirus-covid19-vaccine-effective-variant-south-african-1786282-2021-04-02?utm_source=rss
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