Pfizer Soars as Vaccine Prevents 90% of Covid Cases in Study
A health worker injects a person during clinical trials for a Covid-19 vaccine at Research Centers of America in Hollywood, Florida, U.S. (Photographer: Eva Marie Uzcategui/Bloomberg)

Pfizer Soars as Vaccine Prevents 90% of Covid Cases in Study

(Bloomberg) -- A vaccine developed by Pfizer Inc. and BioNTech SE protects most people from Covid-19, according to a study whose early findings sent stock prices surging and were hailed by the top ...
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