Covid Breakthrough: Pfizer Vaccine Protects 90% in Study

18:38pm, Mon 09 Nov 2020
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Dr. Gabor Kelen, director of the Department of Emergency Medicine at Johns Hopkins, talks about Pfizer's Covid vaccine that protected 90% of patients in a clinical trial. He speaks with Tim Stenovec of "Bloomberg Quicktake Charge." The Bloomberg School of Public Health at Johns Hopkins is supported by Michael R. Bloomberg, founder and majority owner of Bloomberg LP, the parent company of Bloomberg News.