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Pfizer says COVID-19 vaccine is looking 90% effective
This May 4, 2020, file photo provided by the University of Maryland School of Medicine, shows the first patient enrolled in Pfizer's COVID-19 coronavirus vaccine clinical trial at the University of Maryland School of Medicine in Baltimore. While awaiting the first vaccines to be delivered locally, Bulloch County recorded 29 new COVID-19 cases on Sunday, its worst single day for cases since Sept. 23. - photo by Associated Press
Pfizer Inc. said Monday that its COVID-19 vaccine may be a remarkable 90% effective, based on early and incomplete test results that nevertheless brought a big burst of optimism to a world desperate for the means to finally bring the catastrophic outbreak under control.
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