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A map of where deaths due to the coronavirus have been reported so far in the U.S., organized by state.
The news that the Pfizer-BioNTech and Moderna vaccines are 95 percent effective at preventing COVID-19 disease, and the AstraZeneca-Oxford vaccine might be 90 percent effective (with the right dosage), has given the world a much-needed glimmer of hope. These observed efficacy rates of the vaccines from their Phase 3 clinical trials puts them in the range of the most valuable vaccines in use today and imply that the pandemic would be tamed rapidly when sufficient numbers of people received them. They also substantially exceed what was expected by the trial sponsors and public health officials.
Why does the Declaration of Independence proclaim “We hold these truths to be self-evident” instead of simply stating that “We believe it is true”?