“Ours is 95% effective.” Tested on 43,500 people without problems
Covid, a final analysis of the Phase 3 study of the vaccine against the coronavirus of Pfizer shows that «is 95% effective» in preventing infections, even in the elderly, and has not caused serious safety problems, the company that makes the vaccine said. Pfizer says a final trial analysis shows its Covid-19 vaccine is 95% … Read more