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Pfizer
Serious questions have surfaced over AstraZeneca vaccine trials data.Scientists raised doubts about the robustness of results showing the shot was 90% effective in a sub-group of trial participants who, by error initially, received a…
Pfizer says its Covid-19 is 90% effective | Would you trust a company with such rap sheet? Video
https://youtu.be/UA8B4GzKELg